Installing Attic Insulation With Vapor Barrier

Since some leakage of moisture into the insulation in inevitable murphy s law you want it to be able to freely escape from the insulation into the attic.

Installing attic insulation with vapor barrier.

Attic insulation should always be installed with the paper backing facing toward the living space the ceiling in this case. The insulation fiberglass or cellulose is then placed on top of the drywall with no vapor barrier above or below. Insulation vapor barrier with radiant barrier. Insulation radiant and vapor barriers insulating attic.

Never compress or fluff your insulation. Take the measurements with you when purchasing materials. Measure the entire area and write down the results. Attic vapor barrier detail for cold climates the best approach for a vented attic in a cold climate is installing a layer of drywall with a good coat of latex paint the paint creates a semi permeable vapor barrier.

Adding a second vapor barrier could cause condensation to become trapped in the insulation between the two vapor barriers. This acts as a barrier to keep heated moist air from rising up into the attic during cold weather. Just bought this beach. To install an efficient vapor barrier you need the dimensions of the room.

Like some others that have posted i don t have a clue of the best way to insulate this attic. Vapor barriers in attics should only be installed on one side of the insulation. Our insulation vapor barrier can also reduce condensation mold and degradation by controlling water vapor migration.