Showing results 1 - 9 of 9
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A typical Las Vegas hot-dry climate home made of wood frame construction and insulated with R-25 expanded polystyrene externally over a drainage plane, with an unvented wood frame insulated attic and roof assembly.
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Calculate projection factor (PF) by dividing overhang (A) by length of window (B).
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Right – This metal roof is being coated with a cool (high SRI) coating to reduce solar heat gain
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Sources of heat gain in a house include solar gains, infiltration, conduction through walls and roof, occupants, and internal equipment
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Sources of heat gain in a house include solar gains, infiltration, conduction through walls and roof, occupants, and internal equipment
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This home uses light-colored standard paints and finishes on siding and roofing materials to reduce cooling loads without adding material cost.
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This simplified decision tree can help a homeowner or contractor assess how appropriate a cool roof or wall will be for a particular home
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Using roof and wall materials with a high Solar Reflectance Index (SRI) will reduce heat gains.