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Guides A-Z

Guide describing how to insulate headers over doors and windows to reduce heat loss and heat gain through solid wood framing.

Guide describing how to minimize framing around doors and windows to reduce heat loss.

Guide describing how to air seal doors that are next to unconditioned spaces.

Guide describing how to air seal the rough openings around doors and windows.

Guide describing how to use a blower door test to determine building envelope air leakage.

Guide describing the design and installation considerations for recladding of above grade walls using insulated vinyl siding.