Insulated Flex Duct In Attic

Insulated flexible duct r6 silver jacket is used in standard heating and air conditioning hvac systems and some venting applications.

Insulated flex duct in attic.

The master flow 4 in. People can not carry ladders up into a attic and them place them onto 1 1 2 wide boards so they can climb over ducts. The lower the cooler it is. The flex ducts were literally filled shut with ice in the low spots compressing the scant insulation layer beneath them.

The attic is a hot dirty nasty place. The sun would come out melt some ice and it would find it s way to the nearest hole into the house. The higher in the attic the hotter it is. 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.

Blown in insulation is cheap. For pricing and availability. Find a store near me. Lambro 4 in x 96 in foil.

Just blow the attic to r 38 and over the top of ducts if needed. The doe s building america program recommends beds buried encapsulated ducts. Insulated flexible duct r6 silver jacket is used in standard heating and air conditioning hvac systems and some venting applications. Heaping insulation over the ducts is fine in dry climates but can cause condensation on the duct insulation jacket in humid climates.

This additional insulation provides greater thermal efficiency to save energy. The higher the r value the pricier the ducting. The duct has r6 insulation which contains 33 more insulation than the standard r4 2 product. By spraying closed cell foam on the ducts before burying them in attic insulation you prevent the condensation problem.

R 8 duct insulation 5 227 btu hour. They just tear through them smash them climb on. Not part of what is in the attic. R value of insulated ducts flexible ductwork running in open space like an attic will be insulated from about r6 to r10.

When these ducts are exposed to exterior air the plastic jacket never gets cold enough to permit condensation because the hot attic air keeps the plastic jacket warm. Ducts up high get tore up. Find flexible duct at lowe s today. All the ducts are in the attic.

Imperial 8 in x 300 in insulated polyester flexible duct. In existing homes with vented attics and hvac ducts that are installed on the attic floor bury ducts in blown attic insulation when adding or increasing attic insulation. Ducts are to be part of what is inside the house not part of. Before adding blown insulation inspect and test the ducts for missing or torn duct insulation.

The master flow 6 in. The duct has r6 insulation which contains 33 more insulation than the standard r4 2 product. Disconnected or leaking ducts. Or excess flex duct.

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. Looking at the cooling side only the additional load would be.