Insulating Hvac Ducts In Attic

Repeat to insulate the remaining ducts.

Insulating hvac ducts in attic.

If your ducts aren t insulated you re probably paying way more than you should to cool and heat your home. This of course is a good thing. Put it in an attic full of blown insulation and you re forcing it to work harder to vent its heat. R 8 duct insulation 5 227 btu hour.

Make sure the foil surface of the insulation is free of dust before applying the tape. 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. Let s look for constantly improving methods through sharing.

Insulated ducts have been the standard for decades now. To install preformed duct insulation start by disconnecting an elbow to expose the end of the duct. Putting a furnace in an attic is not ideal but will happen. Inspect the span of ductwork to be insulated.

Looking at the cooling side only the additional load would be. Unfortunately so many houses especially newer homes end up with ductwork running through the attic. All the ducts are in the attic. Apply a long strip of foil tape along the seam in the insulation.

The greater the temperature extreme between the air inside the duct and the air surrounding the ductwork the greater your need for duct insulation. Install ductwork so that it is in direct contact with i e laying on the ceiling and or truss lower cords. How to insulate your central air heating ducts. Use metal flex or fiber board ducts that are insulated to code.

Secure the insulation with short strips of foil tape. No building inspector worth his or her salt is going to let any builder or hvac contractor get away with installing ducts that aren t insulated. Duct insulation keeps air that s supposed to be cool cool and air that s supposed to be warm warm. Hvac ducts should be buried under insulation hard covered too.

First consider the duct location. In addition to making the unit hard to get to for service high attic heat can trigger the. Use the type of metallic foil duct tape recommended by the insulation manufacturer to seal and hold the insulation in place. 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.

Insulating hvac ductwork when insulating hvac ductwork use a foil faced fiberglass insulation with an r 6 or higher r value. Look for signs of air leaks at seams or joints such. Snap a plastic cap onto the duct end then slip the preformed insulation over the duct.