Ridgid Foam On Attic Roof

Eps is also the most inexpensive of the three types of rigid foam insulation while also meeting the required building and energy codes.

Ridgid foam on attic roof.

Rigid foam insulation also known as insulating boards provide high r values. Performance imperatives for high r value roof retrofit using insulating sheathing above the roof deck plus cavity insulation in roof framing. Look up and from eave to eave there is foam insulation but none below you. So picture this if your in the attic and lay down on your back.

You might as well put the rigid foam in the branches of a tree in your back yard. You can even place it under the foundation slab. Effective water control is essential to the performance of any attic roof system. Measure the length and width between two rafters in your attic and transfer the measurements to a 4 ft by 8 ft of rigid foam insulation board.

Strip the old roof lay down ice and water membrane add the foam overlapped screw down the 2x4 s add sheathing. If you have a vented attic it makes no sense to install rigid foam above the roof sheathing. Not on the floor of the attic. Rigid foam under roof sheathing indydog.

A vented attic is basically outdoors so installing rigid foam above your roof sheathing is a waste of money and a waste of rigid foam. Eps is by far the most versatile of the three rigid insulation options. Get free shipping on qualified attic foam board insulation or buy online pick up in store today in the building materials department. They keep your home at a comfortable temperature without the need to crank your heat.

It can be applied on the roof floor and walls and it s most widely used in structural insulated panels and insulated concrete forms. I agree with the comment that it sure is a lot of work for so little insulation our standard approach would be about 8 inches of xps screwed thru 2x4 s laided flat with timber loks. The superattic system creates a continuous air and insulation barrier directly beneath the attic roof with no thermal bridging to compromise energy. Rigid insulation is one of the best tools to reduce your energy costs.

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. The following measures are necessary to ensure high levels of performance for this roof retrofit strategy.