Guides A-Z

Guide describing how to insulate a vented attic in an existing home using blown insulation added to the attic floor.

This guides describes buried ducts in loose-fill attic insulation, a method that can only be used in dry climates.

This guide describes approaches to buryng and encapsulating ducts in unconditioned attics to increase the overall R-value of duct insulation.

Guide that illustrates how and when to encapsulate ductwork in unconditioned attics, increases the R-value of duct insulation, mitigating condensation issues and reducing air leakage.

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.