Insulated Flex Duct In Attic

The flex ducts were literally filled shut with ice in the low spots compressing the scant insulation layer beneath them.

Insulated flex duct in attic.

This additional insulation provides greater thermal efficiency to save energy. The higher in the attic the hotter it is. 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. Imperial 8 in x 300 in insulated polyester flexible duct.

The higher the r value the pricier the ducting. Just blow the attic to r 38 and over the top of ducts if needed. R 8 duct insulation 5 227 btu hour. They just tear through them smash them climb on.

Before adding blown insulation inspect and test the ducts for missing or torn duct insulation. The duct has r6 insulation which contains 33 more insulation than the standard r4 2 product. For pricing and availability. The attic is a hot dirty nasty place.

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. This additional insulation provides greater thermal efficiency to save energy. Heaping insulation over the ducts is fine in dry climates but can cause condensation on the duct insulation jacket in humid climates. Or excess flex duct.

Blown in insulation is cheap. 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. The doe s building america program recommends beds buried encapsulated ducts. Not part of what is in the attic.

However this is a cost that pays for itself quickly so choose higher r values when given an option. 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. Find flexible duct at lowe s today. Lambro 4 in x 96 in foil.

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. All the ducts are 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. Looking at the cooling side only the additional load would be.

Ducts up high get tore up. The master flow 4 in. Insulated flexible duct r6 silver jacket is used in standard heating and air conditioning hvac systems and some venting applications. The duct has r6 insulation which contains 33 more insulation than the standard r4 2 product.

Disconnected or leaking ducts. Skip to main content. Find a store near me. The master flow 6 in.

Ducts are to be part of what is inside the house not part of. The sun would come out melt some ice and it would find it s way to the nearest hole into the house.