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Guides A-Z

Guide describing a method for insulating an unvented attic by spraying foam insulation along the underside of the roof deck.

Retrofit guide describing how to assess harmful gasses such as carbon monoxide, sulfur oxides, nitrogen oxides, and soot from existing combustion appliances.

Guide outlining how to retrofit an exterior wall and/or attic to provide continuous air sealing.

Guide describing methods for insulating an unvented attic along the roof line.

Guide describing how to properly ventilate un-vented combustion appliances such as sealed fireplaces.