How To Install Faced Insulation In Floor

I live in the sacramento valley area which gets very hot and dry in the summer doesn t get to cold in winter but foggy damp days in the 30 3 and 40 s.

How to install faced insulation in floor.

If using faced insulation keep the paper vapor retarder facing up and against the subfloor. Start at one edge of the crawlspace and install the insulation between the floor joists. Measure the roll or batt of insulation to the area that you are going to install it in. If you re using faced insulation be sure the moisture barrier goes against the underside of the subfloor.

The batts are precut to fit into cavities on standard 8 foot high walls. Make sure each run contacts the insulation you installed at the header band joists. Faced insulation has a sheet of material attached to one side. There are two types of crawl spaces ventilated and unventilated and each requires its own form of insulation.

Roll insulation is best for floors ceilings and roofs with a long joist or rafter bays and for tall walls. To enclose the space in a thermal envelope. Insulation also helps to preserve the air quality and reduce energy costs. The batting material must be faced and at least as thick as the joists are wide so the batting is nearly flush with the top of the joists.

Install batting between the attic s floor joists. Installing roll insulation in ceiling of basement which is under floors of living space my basement is heated but a smaller amount than up in living space usually 66 68 upstairs and 58 60 at the same time in basement my question is about the kraft paper facing i think it should face the basement because of any moisture in basement. Without insulation heat and cool air are easily lost through the floor. Kraft faced or paper faced insulation comes in batts and long rolls.

The insulation should fit snugly against the subfloor and between the joists. The goal however is the same. Cut the insulation to fit and gently press it up between the floor joists. If it is too big then trim it to size.

Secure the insulation using stay wires. The shower has two outside walls. Remember to set the paper faced insulation upwards. Most floors are framed with 2 by 10s and require r 38 insulation.

Kraft paper facing is by far the most common type of vapor barrier you can find pre attached to blanket insulation intended for installation in homes. I am remodeling a shower stall and going to re tile when i did the demo i noticed the insulation was faced insulation and the paper was facing the outside. This material may be kraft paper foil plastic or vinyl. This is the reason you need not add a vapor barrier when you are using paper faced insulation.