- Green the MLS
- Energy Code
Ducts and HVAC
Seal the boot connections to drywall/subfloor with mastic.
Ducts should not be pinched, squeezed, or supported in a way that prevents air flow.
Seal returns with mastic at all connections.
Seal HVAC components at joints and seams with mastic or UL 181 tape.
Seal all ductwork and HVAC components at all joints, seams and corners with mastic.
Flexible duct should be properly supported. Do not compress flexible ducts more than the thickness of the insulation.