Faced Or Unfaced Insulation In Attic Floor

More often than not faced insulation is made out fiberglass.

Faced or unfaced insulation in attic floor.

Unfinished or uninsulated attics need a layer of protection against air migration. To this end you insulate your home. If the attic doesn t have any existing insulation use faced insulation with the paper facing toward the heated living space. Paper faced insulation means that one side of the insulation material comes lined with paper.

Unfaced insulation is just insulation without an attached moisture barrier. Unlike unfaced insulation faced insulation has a vapor retarder that keeps moisture out. Faced insulation has flanges on the outside of the batt that need to be stapled to the wall studs and joists. If you re putting it in an exterior wall the facing is on the interior side of the home where drywall will be laid.

It s important not to lay faced insulation on top of faced insulation. The same is true for an attic floor. When adding more insulation to an attic that already has insulation use unfaced insulation. Among the many insulation options available for the homeowner there is one that stands above the rest.

The primary function of the vapor retarder is to keep moisture from spreading within the walls and throughout the house. The facing should aim down toward the living space. In crawl spaces unfaced insulation is generally only used when adding to existing insulation. This is usually kraft paper but sometimes other types of paper can be used.