Floor Joist Insulation Faced Or Unfaced

You may be required to cover the kraft paper with other materials depending on your local codes.

Floor joist insulation faced or unfaced. Unfaced crawl space insulation. The same applies to faced unfaced and other kinds of insulation products. Install batting between the attic s floor joists. Kathy november 26 2017 at 11 00 am.

Faced insulation has flanges on the outside of the batt that need to be stapled to the wall studs and joists. Unfaced insulation in your garage. Staple the flange to the side of the framing member with staples spaced about 12. It s also important that there be no air pockets in the insulation as this is where the cold spots spring up in rooms.

Run the unfaced strips perpendicular to the. If you need a vapor barrier and your insulation is unfaced you must cover it with a polyethylene film. Faced or the type with paper is typically used in first time applications such as in walls ceilings floors and in crawl spaces. The insulation should extend all the way down to the basement floor or at least to below the frost line the depth to which the ground freezes in winter.

It wasn t all of the floor joists it was just the bottom of the floor joists that was exposed allowing the aired to get to the moisture and drying it and then causing it to dry rot. Any time you use a faced insulation the paper needs to be facing toward the living space. Here s when to use faced or unfaced insulation. Without stapling moisture still has a path into the room.

Tuck between joists above the basement or crawlspace. The facing on faced insulation acts as a vapor retarder. For example if you plan on using your garage for your welding projects you run the risk of having a welding fire. If your attic floor has no insulation install faced batts or faced rolls between each joist with the moisture barrier facing down against the drywall or plaster ceiling below.

Experts refer to insulation as faced or unfaced basically faced insulation has a vapor barrier and unfaced insulation does not. If there is already insulation between the joists increase the r value by installing unfaced roll insulation right on top. How to install insulation. Whether you choose faced or unfaced insulation for the attic depends on the application and whether some insulation already is present.

Position the flange flat against the side face of the wall stud or floor joist or roof rafter so the edge of the flange is flush with the interior edge of the stud joist or rafter. That s how the barrier is made effective. Faced insulation is a familiar type of insulation that often comes in rolls or batts and gets stapled to joists or other beams.