Ducts In Attic

Burying ducts in attic insulation.

Ducts in attic.

Apply a generous amount of sealant mastic over the thermal leak. You shouldn t install ducts in a vented unconditioned attic. Install ductwork so that it is in direct contact with i e laying on the ceiling and or truss lower cords. The answer is simple.

The duct insulation should include a vapor barrier cover. Ii lowered ceilings in hallways. Ductwork running along an open ceiling in the basement of a one story home is also more affordable to replace. You can get the air handler and ducts into conditioned space in several ways without needing a basement or crawl space.

Use zip ties to secure any loose ducts to the attic floor. When hvac ducts are installed in a vented attic in any climate encapsulate the hvac ducts in attic insulation to protect them from temperature extremes in the unconditioned attic space. Iii special trusses that create space below the unconditioned attic. Unblock any ducts that are restricting air flow and have them cleaned regularly.

The costliest are sheet metal ducts running in enclosed walls and ceilings. Iv conditioned attic and more. Yes when you bury ducts in attic insulation in a humid climate you increase the risk of water vapor condensation on the jacket of the duct insulation. Use metal flex or fiber board ducts that are insulated to code.

Type of ductwork system the least expensive duct system is a radial system of flexible ducts in an attic running to ceiling grates. When hvac ducts are installed in a vented attic in a dry climate bury the ducts in attic insulation to protect them from temperature extremes in the unconditioned attic space. The air ducts for a central hvac systems are typically located above a home in the attic or upper crawl space or underneath a home in the space between the foundation and the floor so you don t see them unless you have cause to replace them. When air cannot circulate freely throughout your a c system it will become colder inside certain ducts increasing the likelihood of ductwork sweating.

I lowered soffits around room perimeters. Install ductwork so that it is in direct contact with i e laying on the ceiling and or truss lower cords. As most gba readers know ducts belong inside a home s thermal envelope not in an environment that s cold in the winter. If you live in a consistently humid climate a dehumidifier can help keep the air around your ductwork dry.

If they are located in your attic be sure the area is properly insulated and any cracks or holes are sealed.