Rigid Foam Insulation Attic Rafters

The best attic insulation.

Rigid foam insulation attic rafters.

2 measure and cut the foam boards as. Get your kits the easy to use spray foam kit. 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. Hire a pro to install spray foam insulation.

A 4 by 8 board weighs next to nothing and can easily be cut to fit. 100 free of cfcs vocs penta bdes urea formaldehyde. 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. As we can see in terms of insulation value for your money the batts take a bat to all challengers.

Rigid insulation is one of the best tools to reduce your energy costs. Rigid foam insulation packs a lot of r value into a thin package but not all rigid foam performs the same. Spray foam insulation that s convenient and easy to use. Class i e 84 fire retardant meets building code spec.

Use closed cell foam it green for attic rafters. You can even place it under the foundation slab. Rigid foam panels are about 0 10 0 15 square foot r. Then cover the foam with drywall as required for fire safety.

Rigid foam board also known as foam board or insulation board can be an excellent option for insulation. It is lightweight and easy to work with. Unlike solid insulation products that require careful measurement cutting and fitting spray foam can cover even the most uneven surface instantly. They keep your home at a comfortable temperature without the need to crank your heat.

R value of 7 in 1 inch 97 closed cell foam. 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. 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. 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.

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. Install it anywhere from the roof to the foundation. The superattic system creates a continuous air and insulation barrier directly beneath the attic roof with no thermal bridging to compromise energy performance. You can use rigid foam panels or do as tom silva does with nearly all houses these days.