Roof Rafter Insulation Materials

The ridge board must be the same width as the rafter boards.

Roof rafter insulation materials.

Owens corning raft r mate 22 1 2 in. If you are planning to use wool then it is imperative you wear protective clothing goggles and a face mask since the wool is an irritant. Polyurethane or polystyrene spray foams can provide thorough coverage to roof rafters and attic walls in much less time than is needed for other materials. Normally people use mineral wool or insulation boards to insulate the rafter space.

In heavy duty construction a ridge beam might be used instead. Rolls batts or blown in insulation. These specialty vents do not affect the. Images courtesy simpson gumpertz heger.

Batts come in pre cut lengths which makes installation fast and easy especially for framed spaces. Fiberglass is easily the most popular material but mineral wool is fairly common as well. You can either install faced batting insulation which has a paper or plastic vapor barrier already attached or add a vapor barrier after installing unfaced insulation. Unlike solid insulation products that require careful measurement cutting and fitting spray foam can cover even the most uneven surface instantly.

Batt and roll insulation this is the second of two most popular types of insulation. In finished space insulation is placed between the rafter boards and drywall or other material is fastened to the face of the boards. Recycled glass or sand that s melted and spun into fibers. Rafter vents or insulation baffles install in any rafter space to create narrow gaps that direct fresh air from the soffit vents to the peak of the roof.

Use these to cover large areas. Attic insulation rafter baffle proper vents 70 pieces model 70rm view the owens corning attic insulation. Fiber material is pre fabricated into a blanket roll that is pressed between two sheets of paper or foil or just one side may be shielded as is the case with rolls. We prefer recycled insulation for obvious reasons.

Rafter boards are fastened to the ridge board at the peak and the top plate where they join the wall. Rolls are easy to transport and can be cut to the length you need. 1 attach baffles to the. Commonly used and inexpensive but fibers can irritate lungs and skin though less so than in years past thanks to better manufacturing and it s less effective at blocking airflow than other materials.