Run the unfaced strips perpendicular to the.
Floor joist insulation faced or unfaced.
Without stapling moisture still has a path into the room.
Faced insulation has flanges on the outside of the batt that need to be stapled to the wall studs and joists.
Faced insulation is a familiar type of insulation that often comes in rolls or batts and gets stapled to joists or other beams.
The same applies to faced unfaced and other kinds of insulation products.
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.
Insulation in rolls called batts comes in two varieties.
Tuck between joists above the basement or crawlspace.
It s also important that there be no air pockets in the insulation as this is where the cold spots spring up in rooms.
Whether you choose faced or unfaced insulation for the attic depends on the application and whether some insulation already is present.
Install batting between the attic s floor joists.
Experts refer to insulation as faced or unfaced basically faced insulation has a vapor barrier and unfaced insulation does not.
For example if you plan on using your garage for your welding projects you run the risk of having a welding fire.
Unfaced insulation in your garage.
That s how the barrier is made effective.
If you need a vapor barrier and your insulation is unfaced you must cover it with a polyethylene film.
Any time you use a faced insulation the paper needs to be facing toward the living space.
How to install insulation.
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.
If you do use faced insulation you must take extra precautions to avoid having a fire.
If there is already insulation between the joists increase the r value by installing unfaced roll insulation right on top.
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.
Kathy november 26 2017 at 11 00 am.
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.
The facing on faced insulation acts as a vapor retarder.
Faced or the type with paper is typically used in first time applications such as in walls ceilings floors and in crawl spaces.
When insulating basement walls don t forget the band joist the piece of wood at the top of the wall that extends around the perimeter and encloses the ends of the floor joists.
You may be required to cover the kraft paper with other materials depending on your local codes.
