Attic Insulation Paper Side Up

The vapor barrier is flammable and according to the manufacturer s label on the insulation the vapor barrier should be installed against the floor.

Attic insulation paper side up. The moisture will get the insulation wet and reduce its effectiveness. And when you re retrofitting insulation in the floor of a crawlspace fig. Kraft paper and its underlying asphalt adhesive are flammable and should always be covered with drywall or other fire resistant material. The warmer air on one outer side of the wall causes water to build up along the colder inner side.

It can also cause mold rot and other problems in the wall. Make sure the first layer you put down on the floor of the. D installing the kraft faced insulation paper side up provides an adequate vapor retarder. The upshot here is that if you put the kraft paper on the wrong side and it gets wet it won t trap moisture.

The wetter it gets the better it dries. Also on the graph is the permeance of polyethylene. Facing is a thin layer of paper or plastic attached to one side of batting insulation which is sold in a roll. The paper facing should always face toward the inside of the home.

Keep the batting insulation s paper facing pointed up toward the living space above. It is a fire hazard when left exposed and can trap moisture in the insulation. Affix rigid foam insulation to the attic side of the hatch or door. Fiberglass batts insulation is installed in the crawl space with the paper facing exposed.

Attic hatch or door. The right barrier will block the moisture from reaching the insulation. Regardless of whether fiberglass insulation is installed in a wall attic or crawlspace. 3 press the batting into place between floor joists but do not push so much that the insulation loses its loft.

Add weatherstripping around the perimeter and a sweep to the door of a walk up attic. You only want one vapor barrier in your attic and it should be as close to the ceiling as possible to prevent warm moist air from coming up from the heated house and condensing when it hits the cold air in the attic. Whether you choose faced or unfaced insulation for the attic depends on the. That s because the paper contains a layer of asphalt adhesive which prevents water vapor from passing through it.

The paper facing on insulation has an asphalt layer which acts as a vapor barrier. Use a zippered insulated tent to keep the enclosure draft free attic tent at 7 attic cover insulator 120.