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Windows Effects on a Building's Heating and Cooling Costs
The following table presents a comparison of annual heating and cooling costs for a typical 10,000 square foot office building with a few selected types of windows. This example is for a building with electric heating and cooling in the Phoenix area.
|
Annual Heating and Cooling Costs with Different Window Types |
|
|
Window Type |
Annual Heating and Cooling Costs |
|
Single-pane, clear |
$5450 |
|
Double-pane, clear |
$5180 |
|
Double-pane, clear, with shade screen |
$4360 |
|
Double-pane, tint (SC = 0.50), low-e |
$4860 |
|
Double-pane, reflective (SC = 0.20), low-e |
$4020 |