|
|
Touchstone Energy® Home
Program Standards
WINDOWS:
Windows must be double-pane with an optional thermal break between the panes. However, all metal windows are required to have thermal breaks. A thermal break separates inside and outside pieces of the window frame with an insulating material. Windows constructed with a thermal break are identified by a "T.I.M." symbol. When a home faces east and west and 50% of the glass area is exposed to direct sunlight, it is recommended that the windows have a low "e" coating. The low "e" coating is an invisible metallic coating and/or Argon fill, which allows sunlight to pass but blocks radiant heat. This microscopic low-e coating is applied to one of the inner glass surfaces of a scaled double-pane window, which keeps the inside window surface warmer in the winter.
DOORS:
Doors in the Touchstone Energy® Home program will be metal insulated. Glass doors, French or sliding style, should meet the standards for conventional windows, double pane with an optional thermal break except for metal doors. Precautions should be taken in sealing the rough openings. Solid wood doors are allowed in limited use, mainly for front door applications. Metal insulated doors are recommended for attic access entrances.
