Covering Attic Insulation With Plastic Against Rafters

Mechanically fasten and mastic seal all duct connections.

Covering attic insulation with plastic against rafters.

It has insulation on the walls that form the bedroom closet wall. Pink fluffy batts wedged tightly between studs rafters and joists insulate the space against exterior temperature changes. Add additional sealant if necessary. This will help determine how many rolls of plastic sheeting will be needed to cover the insulation.

For rolled insulation location it in between roof covering rafters. Now if your insulation is on the floor of your attic and exposed you should not put plastic over it. Does fiberglass insulation need to be covered or is it safe to leave it exposed. Given how small the attic is whenever i go in there and place remove things i tend to brush up against the insulation pulling it out from between the studs see pictures below.

Staple plastic or foam baffles to the roof sheathing near the eaves to keep the material away. Is there an issue with this plan. If you have a. Usually you will certainly fill the insulation blower with the insulation and blow it between the attic floor joists.

For the same reason insulation shouldn t touch the roof s underside. Test total duct leakage. Step 2 roll out the sheeting beginning at the bottom of any corner of the room. It s not uncommon for homes to have exposed fiberglass insulation in the basement or attic.

If the insulation is in your basement ceiling again it is okay to put up plastic. I plan on stapling plastic to the studs to hold the insulation in. Install loose fill insulation to cover the ducts and the attic floor to meet or exceed the code required r value for attic insulation. You are only going to be able to get narrow sheets of plywood through those holes but just nail them up.

Make sure it is flush against the wood as also a 1 inch gap can create a 20 percent heating loss. Run a tape measure across the length of each wall and add all the sides together for the total linear feet of the wall. But here s the question. The duct insulation should include a vapor barrier cover.

If you use plastic secure it with staples.