3.7 : Retail Markets and Companies




3.7.4 Advanced Energy Design Guide for Small Retail Buildings (1)
Shell
Percent Glass 0.4
Window (U-Factor 0.38-0.69
SHGC 0.40-0.44
Wall R-Value (2) 7.6-15.2 c.i.
Roof R-Value
Attic 30-60
Insulation Above Deck 15-25 c.i.
Lighting
Average Power Density (W/ft.^2) 1.3
System and Plant
Heating Plant
Gas Furnace(>225 kBtuh) 80% Combustion Efficiency
Cooling Plant
Air conditioner (>135-240 kBtuh) 10.8 EER/11.2 IPLV - 11.0 EER/11.5 IPLV
Service Hot Water
Gas Storage Water Heater (>75kBtuh) 90% Thermal Efficiency
Note(s): 1) Guide provides approximate parameters for constructing a building which is 30% more efficient than ASHRAE 90.1-1999. Ranges are due to climate zone dependencies. 2) Assumes a wall with heat content greaater than 7 Btu/ft^2.









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