How To Insulate An Attic Roof Rafters

Hire a pro to install spray foam insulation.

How to insulate an attic roof rafters.

If you re considering turning your attic into conditioned storage or living space it s worth changing tactics to insulate between the rafters and wall joists instead of the floor. How to install rafter insulation. Don a long sleeved shirt safety glasses gloves and a dust mask to prevent irritating fiberglass from reacting with. Step 2 cutting and fitting the insulation.

Attach the insulation to the rafter scab board by the paper flange so as not to compress the fiberglass. Get your kits the easy to use spray foam kit. The rolls have a number of 8 foot pieces rolled onto one roll. The insulation should be installed with the paper facing out and attached using staples.

In this case the area behind the knee wall will be uncomfortably hot or cold. If you have questions about your attic give us a call at 1 800 516 0949. Use closed cell foam it green for attic rafters. Make sure it is flush against the wood as also a 1 inch gap can create a 20 percent heating loss.

Staple it to the rafters or scabbed on boards with a staple gun so that the paper backing is toward the interior of the room to act as a vapor barrier. To seal up air leaks around chimneys plumbing stacks or. How to insulate roof rafters. Step 3 installing the insulation.

First climb into the attic and use measuring tape to determine the square footage of the space. If only the living space will be insulated wrap the insulation around the room s walls and ceiling and then continue along the floor of the non living space. Insulating a finished attic there are two basic ways to insulate a finished attic. Step 1 measuring the space.

Use 3 8 inch heavy duty staples every six inches. You can use rigid foam panels or do as tom silva does with nearly all houses these days. Spray foam insulation that s convenient and easy to use. For rolled insulation location it in between roof covering rafters.

Insulate your attic to keep your heating and cooling from going through the roof along with your monthly budget. The best attic insulation. R value of 7 in 1 inch 97 closed cell foam. The fiberglass insulation comes in rolls that are 16 to 24 inches wide.

The paper will fold over the rafter framing thereby allowing for attachment with staples.