Duct Insulation In Attic

Flexible ductwork comes with different insulation r values.

Duct insulation in attic.

Looking at the cooling side only the additional load would be. Other times insulation may be on the outside. According to rightsuite the software we use the supply ducts have about 560 square feet of surface area and the return ducts 101 square feet. The duct insulation should include a vapor barrier cover.

Install ductwork so that it is in direct contact with i e laying on the ceiling and or truss lower cords. Install ductwork so that it is in direct contact with i e laying on the ceiling and or truss lower cords. Because the moving air is in the ductwork for only a short period of time it does not need the insulation r value the attic floor requires. 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.

Sometimes the insulation is inside the ductwork. R 8 duct insulation 5 227 btu hour. Most attic ducts are insulated flex ducts that is flex ducts with r 6 or r 8 fiberglass insulation along with an exterior polyethylene jacket. Attic space insufficient attic insulation poor air sealing and uninsulated ductwork are all common problems that will lead to uncomfortable rooms and make your home less efficient.

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. All the ducts are in the attic.