Guides A-Z

Guide describing air sealing of the seams and holes in HVAC air handler and furnace cabinets.

Guide describing the use of building cavities as supply or return ducts.

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

Guide describing method for installing ducts in a duct chase above a dropped ceiling.

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 use of building cavities as supply or return ducts.

Guide describing method for designing and installing ducts in a raised ceiling chase. 

 

Guide describing removal of construction debris from flex ducts and protection of ducts and HVAC equipment during construction to keep them free of dust and debris.