House Wrap Attic

If the gable isn t covered water can get to the framing and even behind the house wrap below.

House wrap attic.

It may also be used as a house wrap allowing for maximum breathability and eliminating interior condensation problems cellulose or fiberglass insulation alone will merely slow down the transfer of heat. Insulation level are specified by r value. My original plan was to rake the fiberglass to one side of the house so that i could air seal all of the penetrations on the cleared side with spray foam from a can and caulk. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.

The attic floor joists are actually constructed of 2x4s and there is only about 3 4 inches of loose fill fiberglass. Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces. The higher the r value the better the thermal performance of the insulation. William house wrap wasn t invented for use as an air sealer it was a new version of building paper.

Foil white house wrap solid foil our products for attics the best pure aluminum radiant barrier foil insulation available. Apply house wrap up the gables before installing exterior trim even if the attic is not conditioned. R value is a measure of insulation s ability to resist heat traveling through it. I would then clear and seal the other side.

This provides a backing to prevent the batts of insulation from falling into the attic and also acts as a barrier to help stop the cold air from penetrating the insulation. House wrap is not just for air sealing the insulated parts of the house it is mainly for water management. Radiant barrier atticfoil acts like shade. Atticfoil blocks 97 of radiant heat.

If the gable isn t covered water can get to the framing and even behind the housewrap below. A gable is the triangular portion of the wall in an attic that is between the edges of a sloping roof. Building paper and sheet wrbs provide a secondary boundary against water infiltration through the cladding and are also used that way under roof shingles. We treated the knee wall as an outside wall stapling up house wrap tyvek visible in the picture above on the unconditioned side.

The size and shape of a gable wall depends on the structural layout of the attic but all attics have some type of gable end. Apply house wrap up the gables before installing exterior trim even if the attic is not conditioned. Covering gables in the attic. The perforations allow vapors from your living space to pass through and be carried out your attic via the ventilation system.