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Chapter 13: Energy Efficiency

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“Engineering is the science of economy, of conserving the energy, kinetic and potential, provided and stored up by nature for the use of man. It is the business of engineering to utilize this energy to the best advantage, so that there may be the least possible waste.”

William A. Smith, 1908

Using energy efficiently can reduce the cost of heating, ventilating, and air-conditioning, which account for a significant part of the overall cost of housing. Energy costs recur month-to-month and are hard to reduce after a home has been designed and built. The development of an energy-efficient home or building must be thought through using a systems approach. Planning for energy efficiency involves considering where the air is coming from, how it is treated, and where it is desired in the home. Improper use or installation of sealing and insulating materials may lead to moisture saturation or retention, encouraging the growth of mold, bacteria, and viruses. In addition, toxic chemicals may be created or contained within the living environment. These building errors may result in major health hazards. The major issues that must be balanced in using a systems approach to energy efficiency are energy cost and availability, long-term affordability and sustainability, comfort and efficiency, and health and safety.

 Top of Page Energy Systems
Making sound decisions in designing, constructing, or updating dwellings will ensure not only greater use and enjoyment of the space, but also can significantly lower energy bills and help residents avoid adverse health effects. Systematic planning for energy efficiency also can assist prospective homeowners in qualifying for mortgages because lower fuel bills translate into lower total housing and utility payments. Some banks and credit unions take this into account when qualifying prospective homeowners for mortgages. “Energy-efficient” mortgages provide buyers with special benefits when purchasing an energy-efficient home.

Energy use and efficiency should be addressed in the context of selection of fuel types and appliances, location of the equipment, equipment sizing and backup systems, and programmed use when making decisions on space heating, water heating, space cooling, window glazing, and lighting. Usage variables, such as taking excessively long showers, turning off lights when leaving rooms, or using appliances at full or near-full capacity, may increase or decrease energy use, depending on occupancy. Many of these demands can be optimized in the design stage of housing for new construction. However, when remodeling dwellings, making modifications to improve energy efficiency is often difficult. Preconstruction consultations with architects and energy specialists can produce tradeoffs that retain the aesthetics and special aspects of a dwelling, while making appropriate investments in energy efficiency.

A price is paid for poor design and lack of proper insulation of dwellings, both in dollars for utility bills and in comfort of the occupants. The layout of rooms and overall tightness of a house in terms of air exchange affect energy requirements. In addition, home occupants and owners often are called on to make relatively minor decisions affecting total energy consumption, such as selecting lighting fixtures and bulbs and selecting settings for thermostats. Buying energy-efficient appliances can save energy, but the largest reduction in energy use can be derived from major decisions, such as considering the R-value of roof systems, insulation, and windows.

 Top of Page R-values
Thermal resistance (a material’s resistance to heat flow) is rated by R-value. Higher R values mean greater insulating power, which means greater household energy savings and commensurate cost savings. Table 13.1 is a guideline for choosing R-values that are right for a particular home based on the climate, household heating system, and area in which it is located.

Another way of understanding R-value is to see it as the resistance to heat losses from a warmer inside temperature to the outside temperature through a material or building envelope (wall, ceiling or roof assembly, or window). Total heat loss is a function of the thermal conductivity of materials, area, time, and construction in a house.

The R-value of thermal insulation depends on the type of material, its thickness, and its density. In calculating the R-value of a multilayered installation, the R-values of the individual layers are added. Installing more insulation increases R-value and the resistance to heat flow.

The effectiveness of an insulated wall or ceiling also depends on how and where the insulation is installed. For example, insulation that is compressed will not provide its full rated R-value. Also, the overall R-value of a wall or ceiling will be somewhat different from the R-value of the insulation itself because some heat flows around the insulation through the studs and joists. That is, the overall R-value of a wall with insulation between wood studs is less than the R-value of the insulation itself because the wood provides a thermal short-circuit around the insulation. The short-circuiting through metal framing is much greater than that through wood-framed walls; sometimes the metal wall’s overall R-value can be as low as half the insulation’s R-value. With careful design, this short-circuiting can be reduced.

 Top of Page Roofs
Roofs are composite structures, with composite R-values. The total R-value for the roof components shown in Figure 13.1 is 14.54 (Table 13.2). In general, a composite structure with a composite R-value of more than R 38 provides a substantial barrier to heat loss. Of course, in the winter the outside air temperature would vary significantly between locations such as Pensacola, Florida, and Fairbanks, Alaska, and would affect the cost-effectiveness of additional insulation and construction using various roofing components (Table 13.2).

The location of a house is usually a fixed variable in calculating R-values once the lot is purchased. However, the homeowner should consider the value of additional insulation by comparing its cost with the savings resulting from the increase in energy efficiency. Roof construction, including components such as ridge vents and insulating materials, is quite important and is often one of the more cost-effective ways to lower energy costs.

Ridge Vents
Ridge vents are important to roofs for at least three reasons. First, ridge vents help lower the temperature in the roof structure and, consequently, in the attic and in the habitable space below. Second, ridge vents and rotating turbine vents help prolong the life of the roofing materials, particularly asphalt shingles and plywood sheathing. Third, ridge vents assist in air circulation and help avoid problems with excessive moisture.

Fan-powered Attic Ventilation
Attic ventilators are small fans that remove hot air and reduce attic temperature. Adequate inlet vents are important. Typically these vents are located under the eaves of the house. The fan should be located near the peak of the roof for best performance.

White Roof Surface
White roof surfaces combined with any of the measures listed above will improve their performance significantly. The white surface reflects much of the sun’s heat and keeps the roof much cooler than a typical roof.

 Top of Page Insulation
Insulation forms a barrier to the outside elements. It can help ensure that occupants are comfortable and that the home is energy-efficient. Ceiling insulation improves comfort and cuts electricity or natural gas costs for heating and cooling. For instance, the use of R-19 insulation in houses in Hawaii [3] could have the following results:

Reduce indoor air temperature by 4°F (-16ºC) in the afternoon.

Lower the ceiling temperature, perhaps by more than 15°F (-9.4ºC). Insulation [radiant barrier] can reduce ceiling temperatures from 101°F (38ºC) in bright sun on Oahu to 83°F (28ºC) (Figure 13.2).

Reduce or eliminate the need for an air-conditioner.

Energy savings, of course, will vary depending on energy prices. The payback afforded by additional insulation or investment in energy conservation measures is the average amount of time it will require for the initial capital cost to be recovered as a result of the savings in energy bills. A payback of 3 to 5 years might be economic, because the average homeowner stays in a home that long. However, payback criteria can vary by individual, and renters, for example, often face the dilemma of not wanting to make improvements for which they may not be able to fully realize the benefits. Described below are a few insulation alternatives.

To achieve maximum effect, the method of installation and type of insulation are of considerable importance. The proper placement of moisture barriers is essential. If insulation becomes moisture-saturated, its resistance to energy loss is significantly reduced. Barriers to moisture should be installed toward the living area because significant moisture is generated in the home through respiration, cooking, and the combustion of heating fuels.

Cellulose or fiberglass insulation is the most cost-effective insulation. Blown-in cellulose or fiberglass and fiberglass batts are similar in cost and performance. Recycled cellulose insulation may be available. For the best performance, insulation should be 5 to 6 inches thick. It can be installed in attics of new and existing homes. It is typically the best choice for framed ceilings in new homes, but can be costly to install in existing framed ceilings. It is very important that this type of insulation be treated for fire resistance.

Foamboard (R-10, 1.5 to 2 inches) provides more insulation per inch than does cellulose or fiberglass, but is also more expensive. It is best where other insulation cannot be used, such as open-beam ceilings. It is applicable for new construction or when roofing is replaced on an existing home. Two common materials are polystyrene and polyisocyanurate. Polystyrene is better in moist conditions, and polyisocyanurate has a higher R value per inch (millimeter). However, some of these insulations present serious fire spread hazards. They should be evaluated to ensure that they are covered with fire-retardant materials and meet local fire and building codes.

Radiant barrier insulation is a reflective foil sheet installed under the roof deck like regular roof sheathing. The effectiveness of a radiant barrier (Figure 13.2) depends on its emissivity (the relative power of the surface to emit heat by radiation). In general, the shinier the foil the better. Radiant barrier insulation cuts the amount of heat radiated from the hot roof to the ceiling below. It may be draped over the rafters before the roof is installed or stapled to the underside of the rafters. The shiny side should face downward for best performance. Some manufacturers claim that the radiant barrier prevents up to 97% of the sun’s heat from entering the attic.

Wall Insulation
As shown in Table_13.1, it makes sense to insulate to high R-values in the ceiling. Insulation in walls should range from R-11 in relatively mild climate zones to R-38 in New England, the northern Midwest, the Great Lakes, and the Rocky Mountain states of Colorado and Wyoming. Insulation requirements vary within climate zones in these states and areas as well (for instance, mountainous areas and areas farther north may have more heating-degree days). The same logic of installing insulation applies to both ceilings and walls: the insulation should provide a barrier for heat and moisture transfer and buildup from inside the dwelling, where temperatures will generally be in the 68°F to 72°F (20ºC to 22ºC) range, compared with the much colder or hotter temperatures outside. The key to heat loss is the difference in temperatures and the time that the heat transfer takes place over a given area or surface. The choice of heating system, from gas/oil or heat pump, to electric resistance, will also affect the payback of additional wall insulation due to variation in energy fuel prices. For regions identified as “cold,” careful attention should be made in selecting energy fuel type; in particular, a heat pump may not be a practical option.

A homeowner exploring designs and construction methods should examine the value of using structural insulated panels. The incorporation of high levels of insulation directly from the factory on building wall and ceiling components makes them outstanding barriers to heat and moisture. These integrated systems, if appropriately used, can save substantial amounts of energy when compared with traditional stick-built systems using 2 x 4 or 2 x 6 lumber. Also, building energy-efficient features (as well as electrical, plumbing, and other elements) directly into the building envelope at the factory can result in labor cost savings over the more traditional methods of construction.

Floor Insulation
Warm air expands and rises above surrounding cooler air. This process of heat transfer is called convection. Warm air, which is lighter, rises and, as it cools, falls, creating a convection current of air. The two other processes of heat transfer are conduction (kinetic energy transferred from particle to particle, such as in a water- or electrically heated floor) and radiation (radiant energy emitted in the form of waves or particles such as in a fireplace or hot glowing heating element). Floor insulation limits all three modes of heat loss. A warmer floor reduces the temperature difference that drives convection. Floor insulation also directly impedes conduction and radiation to the colder air below the floor.

Batt Insulation
The advantage of floor insulation lies in adding extra R-value without a significant increase in cost. It is cheaper to put more insulation under the floor than to add foam sheathing or change the type of wall construction to accommodate greater insulation levels.

Like walls, floor cavities should be completely filled with insulation—without gaps, missing insulation, or cavity voids. Floor insulation must contact the subfloor and both joists. In many cases, it is worth the extra cost to buy enough insulation to fill the entire cavity.

The amount of floor insulation required by some codes can be less than the space available. For example, an R-19 fiberglass batt is 6¼ inches thick. A floor framed with 2 x 8s is about 7½ inches deep, while a 2 x 10 floor is 9½ inches deep. A builder following a code’s minimum insulation level will leave extra space that will allow for greater heat loss. To avoid this situation, the batt must be pushed up into the cavity. With the proper support, this can be done. Springy metal rods are commonly used to hold insulation up in the top of the floor cavity. Another viable option is the use of plastic straps. Figure 13.3 shows batt insulation improperly applied to the floor above a crawl space or a basement.

The thickness of typical fiberglass batts can assist the designer and the builder in creating a floor system that works for the occupants. Table 13.3 shows a list of R-values, along with the associated batt thickness. Individual brands can vary by as much as 1 inch.

Cavity Fill
According to Oikos, a commercial Web site devoted to serving professionals whose work promotes sustainable design and construction, “Buying a thicker batt may be a better option than trying to lift a thinner batt into the proper position. Material costs will climb slightly but labor should be the same. Attaching the insulation support to the bottom of the floor joist will be easier. It could also lead to a higher quality job because there is less chance for compression or gaps” (Figure 13.4) [4].

In some areas, it’s common to hang plastic mesh over floor joists. Installers drop the insulation onto the mesh before the subfloor is installed. However, hanging the mesh creates sagging bellies. Insulation compresses near the framing and sags in the middle. Mesh should be attached to the bottom of the floor framing [4].

Each stage of increased floor insulation, from R-19 to R-30 or R-30 to R-38, can save energy over the life of the house. This energy translates into energy savings that are multiples of the initial installation costs. Floor insulation will generate the greatest savings in colder climates; in moderate climates, the target insulation level should depend on economics.

Blow-In Insulation
A blown-in insulation system allows the builder or insulator to fill the entire cavity completely, even around pipes, wires and other appurtenances. Using well-trained installers will pay dividends in quality workmanship.

Today there is an endless variety of doors, ranging from metal doors with or without insulation to hollow core to solid wood. When properly installed into fitted frames, doors serve as a heat barrier to maintain indoor temperatures. Quality metal doors with insulation are best if they have a thermal break between the interior and exterior metal surfaces; this keeps heat from being transferred from one side to the other.

Standard Doors
Because doors take up a small percentage of a wall, insulating them is not as high a priority as is insulating walls and ceilings. That said, heat loss follows the path of least resistance; therefore, doors should be selected that are functional and add to the energy-efficiency of the house. Doors usually have lower R-values than the surrounding wall.

Storm doors can add R-1 to R-2 to the existing door’s R-value. They are a valuable addition to doors that are frequently used and those that are exposed to cold winds, snow, and other weather. Screens allow natural breezes to circulate air from outside, rather than totally relying on air-conditioning, which can be energy intensive.

When considering replacement doors, select insulated, metal foam-core doors. Besides insulation, metal doors provide good security, seal more tightly, tend to warp less. Metal doors also are more soundproof than conventional wood doors.

Sliding Glass Doors
Although sliding glass doors have aesthetic appeal, they have very low R-values and hence are minimally energy efficient. To improve the energy efficiency of existing sliding glass doors, the homeowner should ensure that they seal tightly and are properly weather-stripped. Additionally, heavy insulated drapes with weights, which impede the airflow, can cut down on heat loss through sliding glass doors.

Door Installation
Doors must be installed as recommended by the manufacturer. Care must be taken to be sure that doors are installed in a manner that does not trap moisture or allow unintended introduction of air. Numerous types of sealing materials are available that range from foam to plastic, to metal flanging and magnetic strips.

Hot Water Systems
The hot water tank can be insulated to make it more efficient, unless the heat loss is used within the space where it is located. Special insulation is available for this type of appliance, and insulating it will reduce the energy required to deliver the hot water needed by the occupants of the dwelling. Of course, any pipe that is subject to extreme temperatures also should be insulated to decrease heat loss.

 Top of Page Windows
Windows by nature are transparent. They allow occupants of a dwelling to see outside and bring in sunlight and heat from the sun. They make space more pleasant and often provide lighting for tasks undertaken in the space. Especially in the winter, these desirable characteristics offset the heat loss. Heat gain in the summer through windows can be undesirable.

Rather than give them up, it is important to use windows prudently and to keep energy considerations in mind in their design and their insulating characteristics (air, glass, plastic, or gas filler). Good design takes advantage of day lighting. Weather-stripping and sealing leaks around windows can enhance comfort and energy savings. Energy Star windows are highly recommended. Housekeeping measures can improve the efficiency of retaining heat. Heat loss follows the path of least resistance: caulking, weather-stripped framing, and films can help. These measures are relatively labor intensive, low to very low in cost, and can be quite satisfying to the homeowner if accomplished correctly. On the other hand, it is not easy finding the perfect materials or even replacement parts for old windows.

When working with older windows, remember that there is the risk for leaded paint and the dispersion of toxic lead dust into the work area. Please refer to the lead section of Chapter 5, Indoor Air Pollutants and Toxic Materials.

Caulking and Weather-Stripping
According to the U.S. Department of Energy, caulking and weather-stripping have substantial housekeeping benefits in preventing energy loss or unwanted heat gain.

Caulks are airtight compounds (usually latex or silicone) that fill cracks and holes. Before applying new caulk, old caulk or paint residue remaining around a window should be removed using a putty knife, stiff brush, or special solvent. After old caulk is removed, new caulk can then be applied to all joints in the window frame and the joint between the frame and the wall. The best time to apply caulk is during dry weather when the outdoor temperature is above 45°F (7.2°C). Low humidity is important during application to prevent cracks from swelling with moisture. Warm temperatures are also necessary so the caulk will set properly and adhere to the surface [5].

Weather-stripped frames are narrow pieces of metal, vinyl, rubber, felt, or foam that seal the contact area between the fixed and movable sections of a window joint. They should be applied between the sash and the frame, but should not interfere with the operation of the window [6].

Replacing Window Frames
The heat-loss characteristics and the air tightness of a window vary with the type and quality of the window frame. The types of available window frames are fixed-pane, casement, double- and single-hung, horizontal sliding, hopper, and awning. Each type varies in energy efficiency.

Correctly installed fixed-pane windows are the most airtight and inexpensive choice, but are not suited to places that require ventilation. The air infiltration properties of casement windows (which open sideways with hand cranks), awning windows (which are similar to casement windows but have hinges at the top), and hopper windows (inverted awning windows with hinges at the bottom) are moderate. Double-hung windows, which have top and bottom sashes (the part of the window that can slide), tend to be leaky. The advantage of the single-hung window over the double-hung is that it tends to restrict air leakage because there is only one moving part. Horizontal sliding windows, though suitable for small, narrow spaces, provide minimal ventilation and are the least airtight.

In buildings with large older windows, there are often weight cavity areas that hide counter balances that make it easy to raise and lower heavy windows. These areas should be insulated to reduce energy loss.

Tinted Windows
Another way to conserve energy is the installation of tinted windows. Window tinting can be installed that will both conserve energy and also prevent damaging ultraviolet light from entering the room and potentially fading wood surfaces, fabrics, and carpeting. Low-emissivity coatings, called low-e coatings, are also available. These coatings are designed for specific geographic regions.

 Top of Page Reducing Heat Loss and C ondensation
The energy efficiency of windows is measured in terms of their U-values (measure of the conductance of heat) or their R-values. Besides a few highly energy-efficient exceptions, window R-values range from 0.9 to 3.0. When comparing different windows, it is advisable to focus on the following guidance for R- and U-values:

R- and U-values are based on standards set by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers [7].

R- and U-values are calculated for the entire window, which includes the frame.

R- and U-values represent the same style and size of windows.

The R-value of a window in an actual house is affected by the type of glazing material, the number of layers of glass, the amount of space between layers and the nature of the gas filling them, the heat-conducting properties of the frame and spacer materials, and the airtightness associated with manufacturing.

For windows, rating and approval by the National Fenestration Rating Council or equivalent rating and approval is strongly recommended [8].

Please refer to the window section of Chapter 6, Housing Structure.

Glazing refers to cutting and fitting windowpanes into frames. Glass has been traditionally the material of choice for windowpanes, but that is changing. Several new materials are available that can increase the energy efficiency of windows. These include the following:
Low-emissivity (low-e) glass uses a surface coating to minimize transmission of heat through the window by reflecting 40% to 70% of incident heat while letting full light pass through the pane.

Heat-absorbing glass is specially tinted to absorb approximately 45% of the incoming solar energy; some of this energy passes through the pane.

Reflective glass has a reflective film that reduces heat gain by reflecting most of the incident solar radiation.

Plastic glazing materials such as acrylic, polycarbonate, polyester, polyvinyl fluoride, and polyethylene are stronger, lighter, cheaper, and easier to cut than glass. However, they are less durable and tend to be affected by the weather more than glass is.

Storm windows can improve the energy efficiency of single-pane windows. The simplest example of storm windows would be plastic film, available in prepackaged kits, taped to the inside of the window frame. Because this can affect visibility and be easily damaged, a better choice would be to attach rigid or semirigid plastic sheets such as plexiglass, acrylic, polycarbonate, or fiber-reinforced polyester directly to the window frame or mounting it in channels around the frame on the outside of the building. Care should be taken in installation to avoid ripples or blemishes that will affect visibility.

The insulating capacity of single-pane windows is minimal, around R-1. Multiple layers of glass can be used to increase the energy efficiency of windows. Double- or triple-pane windows have air-filled or gas-filled spaces, coupled with multiple panes that resist heat flow. The space between the panes is critical because the air spaces that are too wide (more than ⅝ inch) or too narrow (less than ½ inch) allow excessive heat transfer. Modern windows use inert gases, such as argon and krypton, to fill the spaces between panes because these gases are much more resistant to heat flow than air is. These gas-filled windows are more expensive than regular double-pane windows.

Frame and spacer materials may be aluminum, wood, vinyl, fiberglass, or a combination of these materials, such as vinyl- or aluminum-clad wood.

Aluminum frames are strong and are ideal for customized window design, but they conduct heat and are prone to condensation. The deterioration of these frames can be avoided by anodizing or coating. Their thermal resistance can be boosted using continuous strips of plastic between the interior and exterior of the frame.

Wood frames are superior to aluminum frames in having higher R-values, tolerance to temperature extremes, and resistance to condensation. On the other hand, wood frames require considerable maintenance in the form of painting or staining. Improper maintenance can lead to rot or warping.

Vinyl window frames made from polyvinyl chloride are available in a wide range of styles and shapes, can be easily customized, have moderate R-values, and can be competitively priced. Large windows made of vinyl frames are reinforced using aluminum or steel bars. Vinyl windows should be selected only after consideration of the concerns surrounding the use of vinyl materials and their off-gassing characteristics.

Fiberglass frames have the highest R-values and are not given to warping, shrinking, swelling, rotting, or corroding. Fiberglass is not weather-resistant, so it should also be painted. Some fiberglass frames are hollow; others are filled with fiberglass insulation.

Spacers separating multiple windowpanes in a window use aluminum to separate glass in multipane windows, but it conducts heat. In addition, in cold weather, the thermal resistance around the edge of such a window is lower than that in the center, allowing heat to escape and condensation to occur along the edges.

Polyvinyl chloride foam separators placed along the edges of the frame reduce heat loss and condensation. Window manufacturers use foam separators, nylon spacers, and insulation materials such as polystyrene and rock wool insulation between the glass panes inside windows.

Other Options
Shades, shutters, and drapes used on windows inside the house reduce heat loss in the winter and heat gain in the summer. The heat gain during summer can also be minimized by the use of awnings, exterior shutters, or screens. These cost-effective window treatments should be considered before deciding on window replacement. By considering orientation, day lighting, storage of or reflection of energy from sunshine, and materials used within the house and on the building envelope, heat loss and gain can be decreased.

 Top of Page Solar Energy
Solar energy is a form of renewable energy available to homeowners for heating, cooling, and lighting. The more energy-efficient new structures are designed to store solar energy. Remodeled structures may be retrofitted to increase energy efficiency by improving insulation characteristics, improving airflow and airtightness of the structure, and enhancing the ability to use solar energy. Solar energy systems are active and passive. Whereas active solar systems use some type of mechanical power to collect, store, and distribute the sun’s energy, passive systems use the materials and design elements in the structure itself.

Active Solar Systems
Active solar systems use devices to collect, convert, and deliver solar energy. Solar collectors on roofs or other south-facing surfaces can be used to heat water and air and generate electricity. Active solar systems can be installed in new or existing buildings and periodically need to be inspected and maintained. Active solar energy equipment consists of collectors, a storage tank, piping or ductwork, fans, motors, and other hardware. Flat panel collectors (Figure 13.5) can be placed on the roof or on walls. Typically, the collector will be a sandwich of one or two sheets of glass or plastic and another air space above a metal absorber plate, which is painted black to enhance heat absorption. After collection, when the sun’s energy is converted to heat, a transfer is made to a liquid storage tank. The heated liquid travels through coils in the hot water tank, and the heat is transferred to the water and perhaps the heating system. Most hot water systems use a liquid collector system because it is more efficient and less costly than an air-type system.

In the southwest United States, solar roof ponds have become popular for solar cooling. Evaporative cooling systems depend on water vaporization to lower the temperature of the air. These have been shown to be more effective in dry climates than in areas with extremely high relative humidity.

In certain climates, like those in the Hawaiian Islands, using solar energy is cost-effective for providing hot water. Some builders even include it as a standard feature in their homes. The total cost to the homeowner of solar energy systems consists of the capital, operational, and maintenance costs. The real cost of capital may be lowered by the availability of tax credits offered at the federal (to lower federal income taxes) and state levels.

Homeowners and builders can benefit from tax credits because they lower the total upfront investment cost of installing active solar systems. This is the major portion of the total cost of using solar energy, because operation and maintenance costs are small in comparison to initial system costs.

Passive Solar Systems
Buildings designed to use passive solar energy have features incorporated into their design that absorb and slowly release the sun’s heat. In cold climates, the design allows the light and heat of the sun to be stored in the structure, while insulating against the cold. In warm climates, the best effect is achieved by admitting light while rejecting heat. A building using passive solar systems may have the following features in the floor plan:
  • Large south-facing windows
  • Small windows in other directions, particularly on the north side of the structure
  • Designs that allow daylight and solar heat to permeate the main living areas
  • Special glass to block ultraviolet radiation
  • Building materials that absorb and slowly reradiate the solar heat
  • Structural features such as overhangs, baffles, and summer shading to eliminate summer overheating.
Passive design can be a direct-gain system when the sun shines directly into the building, thereby heating it and storing this heat in the building materials (concrete, stone floor slabs, and masonry partitions). Alternatively, it may be an indirect gain system where the thermal mass is located between the sun and the living space. Isolated gain is yet another type of system that is separated from the main living area (such as a sunroom or a solar greenhouse), with convective loops for space conditioning into the living space.

Energy Star is a program supported and promoted by the U.S. Environmental Protection Agency (EPA) that helps individuals protect the environment through superior energy efficiency. For the individual in his or her home, energy-efficient choices can save families about one third on their energy bill, with similar savings of greenhouse gas emissions, without sacrificing features, style, or comfort. When replacing household products, look for ones that have earned the Energy Star; these products meet strict energy-efficiency guidelines set by EPA and the U.S. Department of Energy. When looking for a new home, look for one that has earned the Energy Star approval. If you are planning to make larger improvements to your home, EPA offers tools and resources to help you plan and undertake projects to reduce your energy bills and improve home comfort [9]. In 2004 alone, Americans, with the help of Energy Star, saved enough energy to power 24 million homes and avoid greenhouse gas emissions equivalent to those from 20 million cars—all while saving $10 billion.

 Top of Page Conducting an Energy Audit
Energy audits can help identify areas where energy investments can be made, thereby reducing energy used in lighting, heating, cooling, or meeting other demands of housing occupants. An inspection can evaluate the worthiness or compliance with codes of energy-saving measures, including accepted or written standards. For example, if a new addition requires the equivalent of R-19 insulation in the ceilings, this can be validated in the inspection process. Whereas an audit is generally informational, an inspection should validate that materials and workmanship have yielded a structure that protects the occupants from the elements, such as rain, snow, wind, cold, and heat. Potentially hazardous situations within a structure should be evaluated in an inspection. The overall goal of a housing inspection in the case of energy efficiency is to identify potential hazardous conditions and help to create conditions under which the health and welfare of the occupants can be enhanced, rather than put at risk.

The housing inspector should be aware that there is variation (sometimes quite significant differences) in heating degree days or cooling loads and in relative humidity conditions within given regions. Local and regional topography, as well as site conditions, can affect temperatures and moisture.

Numerous Web sites listed in this chapter’s Additional Sources of Information section discuss the procedures for conducting energy audits. Local and regional utilities often offer audit services and assist with selecting cost-effective conservation measures for given areas of the United States.

 Top of Page

  1. Lawrence Berkeley National Laboratory. Energy star insulation project: R-value guidelines. Berkeley, CA: Lawrence BerkeleyNational Laboratory; 2004. Available from URL:
  2. R-value. Fort Worth, TX: RoofHelp; 1999. Available from URL:
  3. State of Hawaii, Department of Business, Economic Development,and Tourism, Energy Resources and Technology Division. Ceiling insulation. Honolulu, HI: State of Hawaii, Department of Business, Economic Development, and Tourism; no date.
  4. Oikos. Filling a floor with batt insulation. Energy Source Builder 1995 [Apr]; 38. Available from URL:
  5. US Department of Energy. Energy savers: fact sheets. Washington, DC: US Department of Energy; no date. Available from URL: [PDF - 3.21 MB].
  6. US Department of Energy. Advances in glazing materials for windows. Washington, DC: US Department of Energy; 1994.
  7. American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE). Standards; no date. Atlanta: American Society of Heating, Refrigerating and Air-Conditioning Engineers. Available from URL:
  8. National Fenestration Rating Council. Search for energy performance ratings. Silver Spring, MD: National Fenestration Rating Council; no date. Available from URL:
  9. US Environmental Protection Agency. What is Energy Star? Washington, DC: US Environmental Protection Agency; no date. Available from URL:

 Top of Page Additional Sources of Information

Alliance to Save Energy. Save energy at home. Available from URL:

Christian J, Kosnay J. Home Calculating whole wall R-values on the Net. Energy Magazine Online, November/December 1999.

Energy Information Administration. Available from URL:

Environmental Solar Systems. Available from URL:

Enviro$en$e: Common sense solutions to environmental problems.
Available from URL:

Florida Power and Light. Building shell: insulation. Available from URL:

Florida Power and Light. Online home energy survey. Available from URL:

National Association of State Energy Officials. Available from URL:

Nexus Energyguide. Available from URL:

Oak Ridge National Laboratory Buildings Technology Center. Available from URL:

Oikos. Whole wall R-value ratings. Energy Source Builder #47; October 1996. Available from URL: R-value. Available from URL:

Senate Committee on Energy and Natural Resources. Highlights of the Energy Policy Act of 2003 and the Energy Tax Incentives Act of 2003. Available from URL:

Trandt J. Americans want energy efficiency. Available from URL:

US Department of Energy, Energy Efficiency and Renewable Energy.
Building envelope. Available from URL:

US Department of Energy, Energy Information Administration.
Available from URL:

US Environmental Protection Agency. Available from URL:

US Environmental Protection Agency, Energy Star. Available from URL:

Wilson A. Thermal mass and R-value: making sense of a confusing issue. EBN 1998 7(4). Available from URL:

World Energy Efficiency Association. Available from URL:

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Table 13.1. Cost-effective Insulation R-values for Existing Homes [a;1]

In a climate that is…And a heating system that is…[b]Insulate to these levels in the…Ducts (e] in unheated/uncooled…
CeilingWood-frame wall
FloorBasement or crawl space walls[d]AtticBasement or crawl space
Warm, with cooling and minimal heating requirements [f]

Gas/oil or heat pumpR-22 to R-38R-11 to R-15R-11 to R-13R-11 to R-19R-4 to R‑8None to R-4
Electric resistanceR-38 to R-49R-11 to R-22R-13 to R-25 R-11 to R-19 R-4 to R‑8  None to R-4
Gas/oil or heat pumpR-38 R-11 to R-22R-13 to R-25R-11 to R-19R-4 to R‑8  R-2 to R-8
Mixed, with moderate heating and cooling requirements [g]Electric resistanceR-49R-11 to R-28R-25R-11 to R-19R-4 to R‑8R-2 to R-8
Cold, with mainly heating requirements [h]Gas/oilR-38 to R-49R-11 to R-22R-25R-11 to R-19R-6 to R-11R-2 to R-11
Heat pump or electric resistance R-49R-11 to R-28R-25R-13 to R-19R-6 to R-11  R-2 to R-11

(a)  Adapted from the U.S. Department of Energy 1997 Insulation Fact Sheet available at (800)-DOE-EREC and Modera et al., Impact of Residential Duct Insulation on HVAC Energy Use and Life Cycle Cost to Consumers, ASHRAE Transactions 96-13-4.

(b)  Insulation is also effective at reducing cooling bills. These levels assume your house has electric air conditioning.

(c)   R-values may be achieved through a combination of cavity insulation and rigid   board insulation and are for insulation only (not whole wall).

(d)  Do not insulate crawl space walls if crawl space is wet or ventilated with outdoor air.

(e)  Use the lower R-value for return ducts and higher R-value for supply ducts.

(f)  Florida and Hawaii; coastal California; southeast Texas; southern Alabama, Arkansas, Georgia, Louisiana, and Mississippi.

(g)  Idaho, Kentucky, Missouri, Nebraska, Oklahoma, Oregon, Virginia, Washington, and West Virginia; southern Indiana, Kansas, New Mexico, and Arizona; northern Alabama, Arkansas, Georgia, Louisiana, and Mississippi; inland California; and western Nevada.

(h)  Great Lakes area, mountainous areas [e.g., Colorado, Wyoming, Utah, etc.]), New England, New York, northern Midwest, and Pennsylvania.

Table 13.2. R-Values of Roof Components [3]
Inside air film0.92
Steel deck0.00
2" polyisocyanurate (5.56 x 2)11.12
3/4" perlite (2.78 x 0.75)2.09
Smooth built-up roof0.24
Outside air film in winter0.17

Table 13.3.  Floor Insulation [5]

R-ValueBatt Thickness
R-196 1/4 inches
R-22 HD5 1/2 inches
R-227 1/2 inches
R-258 1/2 inches
R-3010 inches
R-30 HD8 1/2 inches
R-3812 inches
R-38 HD10 inches

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3 acres
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Other Residential - Very nice property located on paved road just south of Marianna. Many nice building sites to choose from. There is a very large oak tree on the property located at the southwest property line. Property is mostly cleared with scattered cedar trees. Close drive to shopping & restaurants, 10 minute drive MOL to I-10. Horses allowed. 20 Acres MOL available for sale but does not adjoin. Deed Restrictions will apply
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      † Based on a 30-year fixed rate of 3.38% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Interest rates are also subject to credit and property approval based on secondary market guidelines. The rates shown are based on average rates for our best qualified customers. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
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4206 Emerald Drive
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4206 Emerald Drive Emerald Isle, NC 28594

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Le Cesarine

  • Mortadella mousse with crescente
  • Tagliatelle al ragù
  • Galantina di carne and seasonal vegetables
  • Roast potatoes
  • Tenerina chocolate cake

Refined selection of local wines

You just can’t visit Bologna without trying mortadella, so Paola has decided to serve it as an antipasto, as a traditional mousse accompanied by crescente, a classic flatbread typical to the region.

Keeping with the theme of local classics, Paola serves tagliatelle al ragù for the first course, a simple but hearty dish that is loved the world over. Next, we have a tender galatina, a typical sausage dish served with seasonal vegetables. On the side, we have some delicious roast potatoes.

To finish, Paola serves a chocolate-lover’s dream dessert - ladies and gentleman, may I present… the Tenerina cake!

  • Participate in meal preparation

  • Vegetarian option

  • Pet-friendly home

  • Dinner only

Want to enjoy the finest flavours of one of the world’s most iconic cuisines, right at the city gates? You can! Paola lives at Porta San Felice, near Bologna’s original city walls.

In this gorgeous and tranquil location, our Cesarina takes us on a journey through the flavours of Bologna’s local traditions, from mortadella to ragù alla bolognese.

The secret of the Cesarina
“I love cooking, because it brings together family traditions and the joy of sharing food with other people”.

Cesarine at home

This Cesarina is also available to organize a taste Experience at your accomodation

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Old   May 4, 2003, 11:31
Default Vortex Shock Wave Interaction
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I am trying to simulate normal-shock and vortex interaction. My problem is how can we initialize moving shock. Any insight on it will be helpfull.

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Old   May 4, 2003, 23:23
Default Re: Vortex Shock Wave Interaction
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You have to just set the initial pre- and post- shock conditions. Usually the shock mach number, pressure and density will be specified using which you can calculate the velocity. See any book on gas dynamics. The calculation is quite simple. First calculate the shock speed. Then change to a reference frame attached to the shock. In this frame the shock is stationary and you cann apply the jump conditions. Solve for all unknowns and change back to original reference frame.
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Among the Silvering Herd: A Tor.Com Original by A. M. Dellamonica

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For centuries, the island nation of Redcap has been obligated to pay tribute to the powerful nation of Sylvanna. Suffering under the heavy burden of the contract that by rights should be declared illegal, the princesses of Redcap summon Gale, a wealthy seawoman, to advise them. Political savvy is only one weapon in Gale's diplomatic arsenal, but she's up against a Sylvanner ambassador who will push her to the brink . . . or over it.

A. M. Dellamonica's previous story for was a uniquely unusual contemporary fantasy love story set in the real world. "Among the Silvering Herd" takes place in another world, one that exists near ours but is quite different. "Among the Silvering Herd" is about loyalty, tradition, and the things people will do to protect what is theirs. This fantasy adventure shows off Dellamonica's gift for engaging characters and her ability to conjure unusual situations to test those characters' mettle.

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Report, Volume 5 by New York (State) Dept. Of ExciseReport, Volume 5 by New York (State) Dept. Of Excise

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PayDay: The Heist Discussion

PayDay: The Heist Trainer

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Locked Topic  Official Trainer Thread  PayDay: The Heist Trainer
jptech  posted on Oct 23, 2011 11:36:59 PM - Report post

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any hope for no recoil?

I'd also like to see unlimited zip ties.

kyle939  posted on Oct 24, 2011 3:56:19 AM - Report post

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Bleewie: No I brought it via Steam?

Why would it make a difference?

I buy ALL my games.

Also Neon: I had the same problem, then tried the other trainer and the game works fine.

Try both of the trainers and see if you get the same problem.
You should not have a problem, it should be okay.

I downloaded the second trainer, which says updated and works fine, no crash and loads fine!

[Edited by kyle939, 10/24/2011 3:58:17 AM]

Bleewie  posted on Oct 24, 2011 6:13:18 AM - Report post

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Ok now ill explain how i start my trainer. I start the trainer with admin rights and after it authorized and stuff i start the game and when im at the main menu after that press any button to start screen i press F1 and it says trainer activated and then i go to select heist and i choose all the stuff i want and i press start heist and exactly at that loading screen it goes back to desktop with no message like: Payday has stopped working it just goes to desktop.
Laxing  posted on Oct 24, 2011 7:00:41 AM - Report post

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Add cash option just crashes me every single time.
Aizen  posted on Oct 24, 2011 8:19:00 AM - Report post

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Well instead of just deleting my post you could have moved it, but anyway the trainer was working very good but then today the Add Cash option make the game crash to desktop without error, warnings, nothing. What fault is this? Steam have not downloaded a new patch because, Super Armor and Ammo works fine.
PWizard  posted on Oct 24, 2011 8:28:55 AM - Report post

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Please wait while I consult my magical, all-knowing crystal ball...

PS -- You might be waiting a while as it's in need of an upgrade.

Aizen  posted on Oct 24, 2011 8:51:01 AM - Report post

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Hehe, work your magic and wonders.
Caliber  posted on Oct 24, 2011 10:22:15 AM - Report post

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I just want to make a note here. THis game uses the DIESEL engine. Basically this is a script driven game and unfortunately games of this type are notoriously hard to make trainers for. We can't do MEGA trainer and people should not expect alot of options on games like this since creating a trainer for this is NOT made in the 'usual' way. The money option crashing 'sometimes' problem.. well i have no way to 'check' it, especially since it works 100% here on my game AND if it isn't crashing EVERY TIME and REPEATABLE for you with CLEAR INSTRUCTIONS on how to make it crash over and over then likely we cannot 'fix' a problem like you are describing. If you are adding money(XP) and you add too much, perhaps the game has a 'limit' of how high you can be and if you get past that then the game crashes or something.

This is the only explanation I have. The best place to use this option is in the FIRST MISSION before you enter the BANK. Press it a few times or whatever then enter the bank and note it increases. If you add too much or use it elsewhere then I have no guarantees about what might happen.

This is likely my last words on the subject. Please know we spent ALOT of time on this trainer to give you these essential options. It's not easy and certainly not like 95% of other games to work with titles like this- What you will see is that since our trainer has been out several days, now suddenly 'other trainers' will be available for it (by the same usual suspects). I can't be bothered any longer to check that they are ripping our techniques/work on this game....

[Edited by Caliber, 10/24/2011 10:25:34 AM]

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Europe, United Kingdom

Dust off your hiking boots: blessed with undisturbed coastlines and postcard-perfect views, England is a playground for rural enthusiasts. Crackling fireplaces, indulgent country pubs and top-notch spas beckon after long days of rambling and rock-pooling. If you’re more world cuisine than wellies, London’s well-heeled haunts, on-trend bars and cultural temples await, but the country’s under-the-radar cities can be just as charming.

Destinations in England

London Hotels
Packed with iconic sights, world-renowned museums and designer talent, this bustling capital is a world onto itself. Its stylish boutique hotels are no less eclectic: from hip East End members’ rooms to Knightsbridge grand dames, each welcomes weary travellers home.
Cotswolds Hotels
A stay in the Cotswolds offers a taste of bucolic life: ramble across rolling hills and well-kept forests, while afternoons away in pretty market towns and sample the region’s seasonal fare in gourmet pubs and seriously good restaurants.
South East of England Hotels
There’s no denying windswept beaches and hillside trails are the perfect antidote to urban stresses: cosy up in a stylish country inn or elegant seaside bolthole for a restorative break away.
The Lake District Hotels
A Tolkienesque sweep of mountains and mirror-smooth lakes, the Lake District cultivates an air of serenity. When you’ve had your fill of fresh air, cosy cottages, Michelin-starred restaurants and luxurious spas await.
South West of England Hotels
From the beaches of Cornwall to the race courses of Cheltenham, this region is home to World Heritage sites, undulating coasts and bucolic landscapes along with countryside retreats and luxurious contemporary pads.
New Forest Hotels
Once a royal hunting preserve, the New Forest now sprawls across 145 square miles of green fields and open heathland, dappled glades and shady streams, attracting nature lovers and gastronomes alike.
North of England Hotels
Home to towering mountains and glistening lakes, Cumbria makes for blissful countryside getaways. In Lancashire, the Yorkshire Dales’ challenging peaks and boutique hotels are a haven for peace-seekers and nature-lovers alike.
West of England Hotels
From honey-hued country houses to grand Georgian estates, the West Country hosts a treasure trove of rural B&Bs and pampering boutique hotels within easy reach of Bristol and Birmingham.
East of England Hotels
Explore ancient forests, sandy beaches and the scenic waterways of the Norfolk Broads. Designer-spruced and luxurious, boutique hotels in the east of England beckon within easy reach of London.

Each hotel selected for its unique charm by Lulu the founder.

Special benefits only guests booking through Chic Retreats obtain.

If you find your stay cheaper elsewhere we will give you £50 towards your next stay with us.

Featured hotels in England

Hipping Hall is an award-winning restaurant and boutique hotel located between the Yorkshire Dales and the Lake District. It is probably the best restaurant in north-west England.

The Portobello Hotel, one of the most romantic boutique hotels in London, is a Notting Hill institution popular with the music, entertainment and fashion crowds. A real haven, this luxury hotel is right in the heart of West London, walking distance from some great shops, restaurants & bars.

A stay at The Wheatsheaf Inn in the Cotswolds is all about the simple pleasures in life; real food, real ale and real comfort. This traditional coaching inn is just like staying in a small boutique hotel but a stay here is like being given a big hug.

No.38 The Park is a 13-room Georgian townhouse in the heart of the spa town of Cheltenham. Perfect for a weekend or midweek escape, it's available for private hire. This Chic Retreat is an excellent choice for celebrations with friends and family, and is dog-friendly.

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• EPO
    Emergency Preparedness Coordinator:
    Trevor Quinlan
    906-635-3627 (office phone)
    906-253-1466 (office fax)
    906-748-0216 (cell phone)

    Emergency Preparedness Planning at CCHD
    In response to 9/11 and the subsequent anthrax attacks that followed, federal funding for preparedness increased exponentially.  In early 2002, Congressional appropriation created two funding streams intended to strenghten the ability to plan for and respond to public health threats and biological terrorist attacks at the local level.  One program was created through the Department of Health and Human Services to support public health preparedness at local health departments and another through the Health Resources and Services Administration to support preparedness at hospitals.
    The CCHD Office of Emergency Preparedness currently keeps and maintains several county-wide plans that are intended to increase preparedness and responce that will greatly reduce the loss of life and property during a natural or man-made public health emergency.  CCHD collaborates daily with other county, tribal, and hospital preparedness partners to identify the most probable hazards here in Chippewa County and the most efficient ways to repond to them.  We develop partnerships at the local and regional level to help organize the people and resources that we may need before, during, and after an emergency.
    CCHD is tasked with developing and maintaining these plans on a day-to-day basis but response to an emergency in Chippewa County will be a community-wide effort.  Please join the effort by becoming a Registered Michigan Volunteer at  https://mivolunteerregistry.org/.


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Restaurants & Bars

Omaha steak place

Restaurants & Bars 1

Omaha steak place

Mark | Oct 12, 2005 06:09 PM

I will be visiting Omaha in a couple of weeks and seek a great steak place downtown. I might not have a car. Thoughts?

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Westminster terror stirs spirit of unity among faith leaders

31 March 2017

United voice: left to right: Sheikh Mohammad al Hilli, of teh Shia Muslim Council; Archbishop Welby; the Chief Rabbi, Ephraim Mirvis; the Chief Imam of the Central London Mosque, Sheikh Ezzat Khalifa; and the RC Archbishop of Westminster, Cardinal Nichols, on Friday evening

United voice: left to right: Sheikh Mohammad al Hilli, of teh Shia Muslim Council; Archbishop Welby; the Chief Rabbi, Ephraim Mirvis; the Chief Imam o...

WESTMINSTER ABBEY will hold a televised “Service of Hope”, to be attended by the Duke and Duchess of Cambridge and Prince Harry, at noon on 5 April, in response to last week’s terror attack only yards away.

The Home Secretary and the Acting Commissioner of the Metropolitan Police will be present, as well as “families of those killed in the attack, together with other victims, witnesses and first responders from the police, fire, ambulance and NHS hospital services”, and representatives of the main faiths and Christian denominations, it was announced on Wednesday afternoon.

The Archbishop of Canterbury and other religious leaders have already taken a united stand. The Archbishop joined other leading religious figures in a vigil outside the Abbey last Friday (see photo).

The leaders held a minute’s silence to remember the four victims, and spoke of their determination not to let violence triumph.

“We have all of us come together because it is a moment of sad reflection but also of determination for our nation together. We represent the three Abrahamic faith communities, equally committed to a peaceful future,” Archbishop Welby said.

The funeral for PC Keith Palmer, who was stabbed to death in the attack, will be in Southwark Cathedral on Monday 10 April at 2 p.m. His killer, Khalid Masood, 52, a Muslim convert who had been raised as a Christian, was shot dead by another officer.

The Bishop of Rochester, the Rt Revd James Langstaff, who was entering the Palace as the attack happened, said last week: “I hope people would be prayerful for the well-being of those who have been injured, and the well-being of our democracy.”

Archbishop Welby told the Lords on Thursday morning that a Lambeth Palace security guard, a Muslim, narrowly missed being hit by the attacker’s car. “[He] arrived at the gate having been missed by the vehicle very narrowly and spent time helping those who had been injured,” Archbishop Welby told peers. “It was typical of this community and this country that he refused to go home until the end of his shift and simply spent the time doing his job as he expected.”

The Chaplain to the Speaker of the House of Commons, Prebendary Rose Hudson-Wilkin, wrote in the magazine The House: “There is the danger that as we seek to find the answers to questions of why, how and who, we might be tempted to blame a religion or a particular group of people. We must not yield to this temptation.”

Faith leaders from across the capital gathered in silence on the steps of St Martin-in-the-Fields on Thursday evening, before a vigil organised by the Mayor of London.

In Birmingham, where Mr Masood lived, religious leaders insisted that the city was not a hotbed of jihadism. The Bishop of Birmingham, the Rt Revd David Urquhart, said at an event organised by Birmingham Central Mosque: “After all the very negative publicity our city has had, it’s very important that all the faiths come together.” Signs were held up stating “Not in our name — Muslims oppose IS”.

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It's Time for Big Data to Deliver

By Dennis McCafferty  |  Posted 04-02-2013
Print this article   Print this article
It's Time for Big Data to Deliver

Impact Maker  Four of five companies pursuing big data say they've improved business as a result.

The majority of major, global organizations are now fully immersed in big data projects. And CIOs who are helping lead these efforts are under pressure to perform: These initiatives are stretching into the eight-figure range in terms of budgeting, and corporate leaders fully expect ROI to cross the double-digit percentage range, according to a recent survey report from Tata Consultancy Services (TCS). Of course, many challenges exist. For starters, executives are facing difficulties in getting individual business units to share information outside of their own silos. And it's also tricky to determine which data to use for various business decisions, the report states. "Big data has enormous potential and early adopters are projecting a high ROI on investments," says Satya Ramaswamy, vice president and global head of mobility and next gen solutions for TCS. "However, overcoming the technological challenges is only part of the story. Businesses need to carefully think where big data initiatives should sit within the organization, and they must consider the potential cultural changes within to speed-up adoption." Executives from more than 1,200 global companies took part in the research.

Dennis McCafferty is a freelance writer for Baseline Magazine.

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GED® Testing in San Marcos CA

Are you looking for GED® testing in San Marcos CA? The exam is only given in person and not online. Typically in order to sit for the exam the test taker must be over 17 years old. The testing fee in the state of California typically ranges from $40-$90.

The test consists of five topics: reading, writing, math, science and social studies. Each section of the test awards a score between 200-800. Most states require test takers to receive a score of 410 on each of the five topics and an average of 450 for the GED® test to pass.

Most GED® testing sites in San Marcos CA are offered at:

  • San Marcos Community Colleges
  • San Marcos ISD
  • San Marcos Literacy Centers
  • San Marcos High Schools

Directory of GED® Testing in San Marcos CA

Vista Adult Education Center
305 East Bobier Drive
Vista, CA
Phone: 760-758-7122
6.90 miles away

Mira Costa College
One Barnard Drive Building 3000 #3B
Oceanside, CA
Phone: 760-795-6685
7.57 miles away

Escondido Adult School
3750 Mary Lane
Escondido, CA
Phone: 760-739-7300
8.09 miles away

San Dieguito Union High School Dist.
800 Santa Fe Drive
Encinitas, CA
Phone: 760-753-7073
9.06 miles away

Poway Adult School
13626 Twin Peaks Road
Poway, CA
Phone: 858-668-4000
13.69 miles away

Montecito High School
720 Ninth Street
Ramona, CA
Phone: 760-788-5070
19.30 miles away


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A woman crying

A recent study maps where white, black, and Hispanic Americans experience the most pain and worry—and optimism.

It’s not just the economic gap between the rich and poor that has grown wider: America has seen an overlapping, and even more troubling, gap in desperation across class as well as racial and ethnic lines. Much has been made of America’s deepening opioid crisis, especially among rural and working-class whites. A recent Brookings Institution study pinpoints where poor Americans are feeling desperation the most across the country as a whole.

The study—developed by leading happiness researcher Carol Graham, along with Sergio Pinto and John Juneau II—uses detailed data from the Gallup Organization to measure the incidence of three key indicators of desperation: worry, pain, and optimism (or lack thereof). These indicators are tracked among poor whites and poor minorities across the 50 states between 2010 and 2015. The data come largely from the Gallup-Sharecare Well-Being Index, which surveyed roughly 175,000 people annually over this period.

The survey asked questions about the kinds of worry, pain, and optimism people experience in their daily lives, alongside a wide range of questions about their physical health and subjective well-being or happiness. The study defines “poor” based on an annual income of less than $24,000 for a family of four, and “minorities” as black and hispanic Americans. Researchers used regression to control for the effect of age, education, employment, religion, gender, and marital status, among other variables, on the levels of pain, worry, and optimism reported by each of the groups.

The Geography of Pain

Pain is a clear source of desperation and despair. The study measures pain according to respondents who said they experienced physical pain on the previous day. The two maps below (adapted from the study) show the geography of pain for poor whites and poor minority groups, respectively. Darker orange reflects a higher incidence of pain.

Maps courtesy of Carol Graham, Sergio Pinto, and John Juneau II/
Brookings Institution

As the map shows, there are three broad areas with a high level of pain for poor whites: upper New England; Appalachia and the Rust Belt; and the upper Northwest. In terms of individual states, poor whites report the highest incidence of pain in Maine, Alabama, Arkansas, Oklahoma, and the Appalachian states. These are states with lower levels of education, lower incomes, and more manufacturing-based economies. The states where poor whites report the lowest incidence of pain are New York, Illinois, Wisconsin, and South Dakota. There is also a relatively low level of pain in Florida, Texas, and California.

The pattern for poor minorities is quite different. They report the highest incidence of pain in more advantaged and more educated states like New York, Massachusetts, and Washington, as well as Michigan in the Rust Belt and Oklahoma and Arizona. Indeed, New York is one of the states where poor whites report the lowest incidence of pain. There is also a relatively high incidence of pain in the Rust Belt states of Ohio, Indiana, and Wisconsin, as well as Oklahoma and New Mexico. Poor minorities report the lowest incidence of pain in Utah, Iowa, Georgia, Louisiana, Mississippi, and the Carolinas. Indeed, there is little overlap between the high- and low-pain states for poor whites and minorities.

The Geography of Worry

Worry is another indicator of desperation. Gallup measures “worry” according to respondents who reported feeling worried the previous day. The maps below chart the geography of worry for poor whites and minorities. Darker purple on the map indicates greater worry.

There are two broad bands of worry for poor whites: across the Eastern Seaboard and into the Rust Belt, and on the West Coast and into the Mountain states. This is a mix of affluent and highly educated states like New Jersey, Massachusetts, and Maryland; Appalachian states like Kentucky and West Virginia; and Nevada and Utah in the West. Some of these fall within less advantaged areas like Appalachia and the Rust Belt, where deindustrialization and the loss of manufacturing jobs has hit hard, and which are also epicenters of the opioid epidemic. But others are affluent states, where poor whites may face anxiety over worsening housing affordability and a wider gap between the haves and have-nots.

For poor whites, there are a handful of states with lower levels of worry, in the Mountain West and South around Georgia and Florida.  The individual states where poor whites report the lowest occurrence of worry are Arizona, New Mexico, Minnesota, Wyoming, Nebraska, Kansas, Colorado, and Georgia. These states are, on balance, relatively affordable, and have reasonably performing economies based on a mix of service and resource industries.

Again, the pattern for poor minorities is almost the inverse. There are two broad bands of states that report high levels of worry for this group: The South and particularly Florida, and the West Coast, especially California and Washington. All of these states have relatively low to moderate levels of worry for poor whites. The individual states where poor minorities experience the highest level of worry are Washington state, Utah, New Mexico, Kansas (a low-worry state for whites), Florida (another low-worry state for whites), and Massachusetts.

A couple of factors may be at work here. On the one hand, California and Washington suffer from high levels of inequality and housing unaffordability, which have a strong impact on less advantaged minorities. On the other hand, these two states, plus Florida and New Mexico, have high levels of Hispanic immigrants who may be legitimately worried by Trump’s crackdown on immigration. Overall, poor minorities have a higher range of worry scores than whites, which means that where they live has significant bearing on their level of worry.

The Geography of Optimism

Optimism is the flip side of worry. It indicates hope for the future and lower levels of desperation. Gallup measures optimism in terms of “best possible life anticipated,” scored on a 0–10 scale. The maps below chart the geography of optimism for poor whites and poor minorities. On these maps, darker green indicates higher levels of optimism, while lighter colors indicate low levels of optimism.

For poor whites, the lowest levels of optimism are found in a combination of Appalachian states like West Virginia, Missouri, and Kentucky; and the Great Plains, Wyoming, Montana, the Dakotas, and Idaho. Again, these are places that are centers of the opioid epidemic, and they also correspond to the so-called “suicide belt” of the U.S. Conversely, the states with the highest levels of reported optimism for poor whites include California, Florida, Nevada, Texas, Maryland, Louisiana, and Georgia. The Southern cluster of states in which this group is the most optimistic is also where it experiences the lowest levels of worry.

The pattern for poor minorities is again quite different. Minorities report the lowest level of optimism in bigger states, especially in the West. The individual states where this group is the least optimistic include California, Oregon, Kansas, New Mexico, Colorado, and Washington. Poor minorities also report relatively low levels of optimism in Florida, Texas, and New York.

Overall, poor minorities reported optimism in a tight cluster of states surrounded by a wide range of places that are much less optimistic. This suggests that for poor minorities, where you live is a key determinant of how optimistic you are.

America is not only beset by growing spatial inequality, it also suffers from a widening geography of desperation. For poor whites, desperation is highest in Appalachia and the Rust Belt, places hard hit by an ongoing economic transformation. Poor minorities suffer more in relatively affluent and knowledge-based states on the coasts. Interestingly, there is a broad band of relatively high optimism in the Deep South, particularly Louisiana, Mississippi, Georgia, Alabama, Arkansas, and Tennessee. This is both counterintuitive and straight-out puzzling: Many, if not most, of these states have long histories of racism and anti-immigrant sentiment, and voted overwhelmingly for Trump last November. Perhaps their optimism reflects their own resilience.

Regardless of these more specific patterns and trends, America faces a widening desperation gap, which increasingly registers itself in everything from patterns of mental and physical health and crime to the increasingly divided nature of our politics and culture.

About the Author

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    The Toxic 'Blank Spots' of Niagara Falls

    The region’s “chemical genies” of the early 20th century were heralded as reaching into the future to create a more abundant life for all. Instead, they deprived future generations of their health and well-being.

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County Highway PD

Last Updated: 10/27/2017

Work this week – Currently in Stage 4 Traffic Control

  • Continue construction on pedestrian bridge.
  • Continue landscaping and restoration
  • Continue with sidewalk paving
  • Finished asphalt surface paving.

Work scheduled for the next week

  • Complete construction on pedestrian bridge.
  • Complete landscaping and restoration
  • Complete pavement marking

Traffic impacts - Pavement marking crews.

CTH PD (McKee Rd) from CTH M to Maple Grove Rd

April 2017 through October 2017

Cth PD Plans

Proposed Night Work
Some night work is proposed for safety and to minimize inconvenience for traffic.  The details can be found here:  Nightwork CTH PD

The CTH PD project includes reconstruction of CTH PD to a 4 lane divided urban arterial street with bike lanes, curb & gutter, sidewalk and a curbed, grassed median.  Street Lighting, Traffic Signals, Storm sewer, Water Main and Sanitary Sewer are included in the project also.  A pedestrian and bicycle overpass for the Ice Age Junction Path is proposed just west of High Point Road.

Public Information Meetings

Public Information Meeting #1
The City and County held a public information meeting for this project on August 18, 2015 at the Meadowwood Neighborhood Center (5750 Raymond Rd. Madison, WI).  The presentation and plans can be viewed below:

Public Information Meeting #2
The City and County are held a 2nd Public Information Meeting on June 9, 2016 at 6:30 PM at Chavez Elementary School (3502 Maple Grove Rd. Madison, WI).  Staff provided a presentation and answered questions about the project.  The presentation and plans can be viewed below:

Preconstruction Public Information Meeting
The City and County held a preconstruction meeting to discuss the project and what to expect during construction.  The meeting was held on Wednesday April 26, 2017 in the Chavez Elementary School Cafeteria (3502 Maple Grove Dr.).


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MFD Lends Helping Hand At Gilbert Brown Football Camp

Posted on Wednesday, June 28, 2017 - 5:51am
Gilbert Brown speaks to kidsEMTs from the Madison Fire Department are on hand this week at the Gilbert Brown Football Camp sponsored the Boys & Girls Club of Dane County.
Gilbert Brown was a Green Bay Packers defensive lineman from 1993-1999 and again from 2001-2003. He was joined at the Football Camp by another Packers defensive lineman, Santana Dotson. Brown and Dotson were Super Bowl XXXI champs in 1996 alongside Packers great Brett Farve.
The Gilbert Brown Football Camp is provided for youth ages 8 to 17, and it runs through Thursday.
EMTs with Gilbert Brown

This blog was authored by Division Chief Johnny Winston, Jr.

Category: General


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Barclays in $790 Million Sale of Index Benchmarking and Risk Analytics Business to Bloomberg

December 16, 2015

Cleary Gottlieb represented Barclays in the sale of its index benchmarking and risk analytics business, Barclays Risk Analytics and Index Solutions, to Bloomberg for approximately $790 million. The deal signed on December 16, 2015 and, subject to various conditions including anti-trust approval, is expected to close in mid-2016.

Barclays Risk Analytics and Index Solutions is a leading provider of benchmark and strategy indices, including some of the fixed-income market’s most widely used indices (most notably the Barclays Family of Aggregate Bond Indices).


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Arts & Entertainment

Best Cooking and Crooning Radio Show

Maximum Consumption

Nothing replenishes the soul like good food and fine music -- preferably served at the same time. Kate Koenig and Liz Stout, hosts of Maximum Consumption on 91.1-FM WRUW, get it. Their weekly cooking show is a concert dedicated to the culinary world. Each hour-and-a-half segment starts with a specific theme: The women might casually chat about how to start your own garden or make a mean cocktail. Then they cook up tasty recipes for derby pies, mint juleps, or vegan mole before seasoning their airtime with songs dedicated to food. As listeners jot down recipes for berry slaw, Nancy Sinatra and Lee Hazelwood's "Summer Wine" and the Very Knees' "Ohio Peaches" keep your ears -- and tastebuds -- hungry for more foodie fun.

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