Rigid Foam Insulation Attic Rafters

The superattic system creates a continuous air and insulation barrier directly beneath the attic roof with no thermal bridging to compromise energy performance.

Rigid foam insulation attic rafters.

Select rigid foam insulation boards that are at least 1 2 inch less in thickness than the rafter space is deep if you plan to finish the attic as living space. Rigid foam panels are about 0 10 0 15 square foot r. Use closed cell foam it green for attic rafters. Foam blocks airflow needs no vapor barrier and has a higher r value per inch than loose fill or batts so you ll get more protection with less depth.

You can use rigid foam panels or do as tom silva does with nearly all houses these days. The best attic insulation. As we can see in terms of insulation value for your money the batts take a bat to all challengers. 100 free of cfcs vocs penta bdes urea formaldehyde.

Choose rigid insulation wisely and consider the effect its characteristics will have on the performance of the your project overall product cost and the best way to get the bang for your buck. You can even place it under the foundation slab. Unlike solid insulation products that require careful measurement cutting and fitting spray foam can cover even the most uneven surface instantly. Hire a pro to install spray foam insulation.

Rigid insulation is one of the best tools to reduce your energy costs. With spray foam unlike with loose fill or batts you must cover the soffit vents they aren t needed to keep the roof cool. Then cover the foam with drywall as required for fire safety. Get your kits the easy to use spray foam kit.

Class i e 84 fire retardant meets building code spec. Typical thicknesses range from inch to 2 inches with estimated r values of r 3 for the inch to r 10 for the 2 inch board. R value of 7 in 1 inch 97 closed cell foam. Now someone will look at an insulation value chart and says but foam has a higher r value per inch so it s better insulation since you have non infinite space to put it in.

Rigid foam insulation also known as insulating boards provide high r values. Spray foam insulation that s convenient and easy to use. It is lightweight and easy to work with. They keep your home at a comfortable temperature without the need to crank your heat.

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. The superattic system utilizes proprietary silverglo rigid foam insulation panels to fully seal and insulate the attic directly beneath the roof rafters and directly inside the gable ends. Rigid foam insulation packs a lot of r value into a thin package but not all rigid foam performs the same. 2 measure and cut the foam boards as.