Building Components

HVAC » Ducts in Conditioned Space

Guide describing how to install ducted returns to provide conditioned air to all parts of the house and return stale air to the furnace for reconditioning.

Guide describing how to install transfer grilles at each bedroom ensure a continuous flow of heating and cooling even when the doors are closed.

Guide describing how to install jump ducts at each bedroom ensure a continuous flow of heating and cooling even when the doors are closed.

Guide describing how to install back-draft dampers in exhaust fans to make a shared duct possible.

Guide describing correct ducting for exhaust fans.

Guide outlining how to correctly install ducts.

Guide outlining how to correctly install ducts.

This measure guide describes how to correctly install ducts, ensuring enough cavity space to avoid compression.

Guide describing how to hang ducts with supporting straps or saddles to adequately support ducts so they do not sag and are not pinched or compressed in a manner that would cause damage to the ducts, the duct insulation, or the duct air barrier covering.

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

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

Guide describing how to air seal and insulate flex ducts.

Guide describing how to air seal and insulate fiber board ducts.

Guide describing how to determine proper insulation levels for ducts in unconditioned spaces.

This measure guide describes how to conduct duct leakage tests per RESNET protocols.

Guide describing how to conduct duct leakage tests 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 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.

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

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

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.

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

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

Guide describing design and installation of compact duct systems.

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.