How To Insulate Rafters In Attic

In this case the area behind the knee wall will be uncomfortably hot or cold.

How to insulate rafters in attic.

Lay a two by four on top temporarily compressing the insulation to a manageable. You can use rigid foam panels or do as tom silva does with nearly all houses these days. The best attic insulation. Use closed cell foam it green for attic rafters.

Install ventilation baffles into the space between the rafters before you install the insulation usually by stapling into place. If you re finishing your attic insulating it to the proper r value can cause a dramatic loss of headroom if you limit yourself to fiberglass batts. If your attic is going to be converted into livable space then you will need to insulate the roof rafters. 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.

How to install rafter insulation. There are two basic ways to insulate a finished attic. To meet all three goals insulating your finished attic ventilating the roof and maximizing headroom use a combination of dense batt insulation rigid foam sheeting and air chutes. To cut blanket style insulation place the product over a piece of plywood with its paper or foil side down.

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. Place the plastic sheeting on top of the rolled insulation. Attach baffles to the bottom of the roof sheathing the plywood or solid wood strips onto which roofing material was installed. If you have questions about your attic give us a call at 1 800 516 0949.

Attach the insulation to the rafter scab board by the paper flange so as not to compress the fiberglass. R value of 7 in 1 inch 97 closed cell foam. 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. Don a long sleeved shirt safety glasses gloves and a dust mask to prevent irritating fiberglass from reacting with.

Make sure it is flush against the wood as even a 1 inch gap can cause a 20 percent heating loss. For rolled insulation place it between roof rafters. Get your kits the easy to use spray foam kit. Spray foam insulation that s convenient and easy to use.

Use 3 8 inch heavy duty staples every six inches.