Attic Insulation Paper Side Up Or Down

It can also cause mold rot and other problems in the wall.

Attic insulation paper side up or down.

Also on the graph is the permeance of polyethylene. Attic hatch or door. Make sure the first layer you put down on the floor of the. Dont know about your location but here a ceiling installation calls for no vapor barrier.

When using insulation that has either paper or plastic facing that moisture barrier faces outward toward the attic space. It is a fire hazard when left exposed and can trap moisture in the insulation. If you put it on the right side where the humidity is it s not much of a vapor retarder. The wetter it gets the better it dries.

Paper backed insulation is cut to fit betwen the studs or rafters and has little flaps on either side to secure the insulation w staples. Even if the attic space is unheated it typically is warmer than the. So if you re installing insulation in an attic that doesn t have any used faced insulation and put the paper side down toward the ceiling. Foil insulation underlayment is recommended under a metal roof and in most cases the shiny side should be facing up but there s a catch.

Pull down stair or ladder. We are purchasing a used home soon but the inspection report says that the attic insulation paper side is facing down into the crawl space and should be removed replaced since the paper side states that it is flammable. 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 right barrier will block the moisture from reaching the insulation.

Fiberglass batts insulation is installed in the crawl space with the paper facing exposed. The moisture will get the insulation wet and reduce its effectiveness. Then you hang drywall over it all. The warmer air on one outer side of the wall causes water to build up along the colder inner side.

Always have the paper toward the living area which in the case of an unfinished attic insulating attic floor would be paper face down. Foil insulation is a radiant barrier and it works by. Fuzzy side faces away from you paper towards you. Add weatherstripping around the perimeter and a sweep to the door of a walk up attic.

Use a zippered insulated tent to keep the enclosure draft free attic tent at 7 attic cover insulator 120.