How To Properly Insulate Attic Rafters
If your attic is going to be converted into livable space then you will need to insulate the roof rafters.
How to properly insulate attic rafters. Batts and blankets insulation often comes with a vapor retardant facing and some varieties. How to insulate an unfinished attic preparing an attic for insulation. To install insulation. Installing a vapor barrier.
To install the air chutes staple them directly to the roof decking. Make the foundation part of the thermal mass of the conditioned space thereby reducing. Provide some protection against moisture intrusion. Do not use plastic sheeting in this case.
If there is a floor you will need to remove it to properly insulate the roof rafters. How to install rafter insulation. Hire a pro to install spray foam insulation. 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.
If the plastic sheeting is in pieces overlap the pieces by 8 inches and staple it in place directly to the roof rafters and the wall. To cut blanket style insulation place the product over a piece of plywood with its paper or foil side down. To effectively ventilate your roof create a 1 in. Airspace from the soffit to the ridge by installing a continuous air chute in each rafter bay.
Attach the insulation to the rafter scab board by the paper flange so as not to compress the fiberglass. Install ventilation baffles into the space between the rafters before you install the insulation usually by stapling into place. Apply insulation between rafters when finishing an attic into a heated room or when building a cathedral ceiling in the home. Garages built without attics are.
Minimize thermal bridging and reduce heat loss through the foundation. Place planks 1 by 6 or 1 by 8 or plywood sheaths across floor joists to improve. You can use rigid foam panels or do as tom silva does with nearly all houses these days. Use 3 8 inch heavy duty staples every six inches.
Protect the damp proof coating from damage during backfilling. Lay a two by four on top temporarily compressing the insulation to a manageable.