Installing Attic Insulation In Rafters

The basic installation steps are the same for walls ceilings floors and roofs in wood frame houses.

Installing attic insulation in rafters.

If your attic is going to be converted into livable space then you will need to insulate the roof rafters. 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. You can buy air ducts that staple to the inside of your roof above the eave vents and fit between the rafters. He was very professional and informed us of different options for materials and processes.

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. Cut the insulation roll or batt to fit the length of the framing cavity if necessary. Push the insulation in place between the rafters but be careful not to compress the material. You can use rigid foam panels or do as tom silva does with nearly all houses these days.

Alternate fasteners may be used with the type and length as recommended by their manufacturer for securing foam plastic insulating sheathing. Set a t square or metal straightedge over the insulation and press it down firmly. Visquine a painter s drop cloth over the insulation and across the face of the rafters. Revival energy assisted us with obtaining our energy rebates also.

The will hold open an air gap of approximately 1 inch to allow airflow past a layer of insulation. Once the insulation is in place between all the rafters staple up a vapor barrier of 6 ml. To install insulation batts and blankets. Install batting between the attic s floor joists.

Fasteners should be long enough to penetrate in to the rafter a minimum of inch. Begin at a wall and work toward the center of the attic floor or the entryway carefully placing insulation between joists and ensuring a snug fit. Place the insulation with the facing side down on a piece of scrap plywood. If using insulation with a vapor retardant facing install the material with the vapor retardant side down.

The ones i ve used are made of styrofoam and iirc they cost around 2. Install ventilation baffles into the space between the rafters before you install the insulation usually by stapling into place. For insulation to reach its full potential for preventing warm air migration it must maintain the. Hire a pro to install spray foam insulation.