BASC Search

Guide describing the retrofit of kitchen exhaust systems, including duct sizing and routing considerations.

Guide describing the practice of burying HVAC ducts in loose-fill insulation on the attic floor.

Guide describing approaches to burying and encapsulating ducts in unconditioned attics to increase the overall R-value of duct insulation.

Guide describing how to correctly install flex ducts without kinks or sharp bends.

Guide for designing and installing interior ducts in an interstitial floor cavity in new and existing homes.

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

Guide describing how to air seal and insulate flex ducts.

Guide describing how to air seal and insulate metal ducts.

Guide describing how to hang HVAC ducts with supporting straps or saddles to adequately support ducts so they do not sag and are not pinched or compressed.

Guide describing design and installation of compact duct systems for central heating and cooling systems.

Guide describing how to conduct duct leakage tests per RESNET protocols on all components of the HVAC system (including the air handler, ductwork, register boxes/boots, and all air devices such as diffusers, registers, or grilles).

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

Guide describing how to thoroughly seal HVAC ducts to ensure air delivery without leakage, and to ensure economical and quiet performance of the HVAC system.

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

Guide describing the use of ducted returns to return stale air from bedrooms and bathrooms to a central heating system.

Guide describing the testing of duct leakage in central ventilation systems for multi-story, multi-family buildings.