Faced Or Unfaced Insulation In Attic Floor

When adding more insulation to an attic that already has insulation use unfaced insulation.

Faced or unfaced insulation in attic floor.

Faced insulation has flanges on the outside of the batt that need to be stapled to the wall studs and joists. It s important not to lay faced insulation on top of faced insulation. In crawl spaces unfaced insulation is generally only used when adding to existing insulation. Unlike unfaced insulation faced insulation has a vapor retarder that keeps moisture out.

If you re putting it in an exterior wall the facing is on the interior side of the home where drywall will be laid. Among the many insulation options available for the homeowner there is one that stands above the rest. Paper faced insulation means that one side of the insulation material comes lined with paper. Unfinished or uninsulated attics need a layer of protection against air migration.

To this end you insulate your home. Unfaced insulation is just insulation without an attached moisture barrier. The batting material must be faced and at least as thick as the. If the attic doesn t have any existing insulation use faced insulation with the paper facing toward the heated living space.

Install batting between the attic s floor joists. The facing should aim down toward the living space. The primary function of the vapor retarder is to keep moisture from spreading within the walls and throughout the house. The same is true for an attic floor.