Which Way Does Insulation Gos Ine The Attic

The paper facing should always face toward the inside of the home.

Which way does insulation gos ine the attic.

Kim asks on your show you said that when insulating under a floor the paper facing should face up against the flooring. Because the simplest and cheapest way to insulate an attic is to add material to the floor. Before insulating seal any air leaks and make roof and other necessary repairs. The drywall goes in before the exterior sheathing does.

Why can t i install it the other way regardless of whether insulation is installed in a wall attic or crawlspace. Plan to pull up the flooring and layer new insulation on top of the old. 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. If it is less than an equivalent of r 30 you could probably benefit by adding more.

In any case the vapor barrier must point to the warm side. This barrier is meant to keep moisture from getting to the insulation in the walls and ceilings and it is required by building codes when insulating most houses. Whether you choose faced or unfaced insulation for the attic depends on the. To find out if you have enough attic insulation measure the thickness of the insulation.

Facing is a thin layer of paper or plastic attached to one side of batting insulation which is sold in a roll. If you want to add foil insulation to an existing roof you can still do it by going into the attic and stapling it to the undersides of the roof rafters. If it is located in a conditioned part of the house also remember to insulate and air. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.

But if the floor is covered in plywood you can t stuff enough insulation beneath it to do the job sufficiently not even in warm climates. Vapor barriers are sheets of plastic or other material placed on one side of insulation sheets. If you do this the shiny side of the. Drying potential is important.

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. I think the only way to do that effectively would be with modular homes where they building inside out. Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer.