Double pane, Low-E windows reduce heat radiation through the window and minimize moisture condensation that results with outside temperature changes. Windows must have a minimum U-Factor of ≤ 0.30; and a minimum SHGC of ≤ 0.40.

Home window area is limited to 18 percent of the home’s exterior total square foot wall area to better control heat radiation and cooling loss.

House wrap envelopes window openings using the modified “I” fold method. Window wrap is put in place.

The window treatment standard is the same for doors.

Exterior Doors

Insulated external doors are used. The standard permits an exception for front door entries. All doors must have Low-E glass and a thermal break.

For a complete listing and description of the Touchstone Energy® HomeSM Official Building Standards, click here.