Guides A-Z

Guide describing how to add spray foam insulation to the underside of the existing roof deck as part of the conversion of a vented attic to an unvented, insulated attic.

Guide describing how to install ventilation air inlets in open locations at a safe distance from potential air contamination sources.

Guide describing options for adding dehumidification equipment to a home to maintain indoor relative humidity below 60%.

Guide describing the types of whole-house fans, installation details to reduce energy loss, and how to operate them for comfort and energy savings based on climate zone.