Foam Insulate Attic Ductwork

Oh and when you put it in your attic spray foam insulates the attic itself.

Foam insulate attic ductwork.

Cover the spray foam with fire retardant spray. Ted also has inherited a powered attic ventilator. If you want to cover metal ductwork with blown in insulation t hese steps must be followed in this order. Earlier this year i got a question about a home that had spray foam insulation in the attic.

You increase the amount of usable space inside your home. If necessary switch the wires to reduce the blower to its lowest speed. 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.

As for whether you should use spray foam we are a neutral party. Most brands come in rolls a foot in width and several feet long. Although both the attic floor and the ductwork are insulated ted recognizes the situation isn t ideal. Check the speed of the blower motor on the furnace.

At pv we recognize that spray foam is an insulation choice that some people make for their homes. Use a paintbrush to apply duct mastic to the joints where an elbow connects to a duct. Many homeowners love spray foam for the reasons stated. The foam provides a vapor barrier so the ductwork won t sweat.

Cover the metal ductwork with closed cell spray foam. While fairly thin it works well to dampen sound and can be combined with other forms to increase the insulation rating. A lot of builders and homeowners are going with spray foam insulation because of the airtightness benefits but then the questioner mentioned that the spray foam contractor had intentionally left big holes to the outside by not sealing the gable vents. Press a continuous strip of foil tape to all longitudinal seams along straight runs of duct.