Foam Insulate Attic Ductwork

You increase the amount of usable space inside your home.

Foam insulate attic ductwork. Nothing unusual about that. If you want to cover metal ductwork with blown in insulation t hese steps must be followed in this order. Cover the spray foam with fire retardant spray. Ted also has inherited a powered attic ventilator.

Check the speed of the blower motor on the furnace. Use a paintbrush to apply duct mastic to the joints where an elbow connects to a duct. Cover the metal ductwork with closed cell spray foam. Press a continuous strip of foil tape to all longitudinal seams along straight runs of duct.

As for whether you should use spray foam we are a neutral party. The 1 800 square foot brick ranch in climate zone 4 dates from the 1960s but the previous owner installed both a furnace and ductwork in the attic just four years ago. Installs easily and wraps around irregular ductwork areas well. Most brands come in rolls a foot in width and several feet long.

Many homeowners love spray foam for the reasons stated. Although both the attic floor and the ductwork are insulated ted recognizes the situation isn t ideal. Foil backed self adhesive foam duct insulation. While fairly thin it works well to dampen sound and can be combined with other forms to increase the insulation rating.

We are neither pro spray foam nor anti spray foam. If necessary switch the wires to reduce the blower to its lowest speed. Earlier this year i got a question about a home that had spray foam insulation in the attic. Oh and when you put it in your attic spray foam insulates the attic itself.