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Get free shipping on qualified attic foam board insulation or buy online pick up in store today in the building materials department.
Ridgid foam on attic roof. They keep your home at a comfortable temperature without the need to crank your heat. 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. So picture this if your in the attic and lay down on your back.
Look up and from eave to eave there is foam insulation but none below you. Rigid foam insulation also known as insulating boards provide high r values. The following measures are necessary to ensure high levels of performance for this roof retrofit strategy. Not on the floor of the attic.
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. If you have a vented attic it makes no sense to install rigid foam above the roof sheathing. 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 attic is inside the thermal envelope and all the mechanicals and electrical are free and clear less a few wires that go.
Strip the old roof lay down ice and water membrane add the foam overlapped screw down the 2x4 s add sheathing. Effective water control is essential to the performance of any attic roof system. It can be applied on the roof floor and walls and it s most widely used in structural insulated panels and insulated concrete forms. Eps is also the most inexpensive of the three types of rigid foam insulation while also meeting the required building and energy codes.
Rigid foam under roof sheathing indydog. 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. You can even place it under the foundation slab. Performance imperatives for high r value roof retrofit using insulating sheathing above the roof deck plus cavity insulation in roof framing.
Eps is by far the most versatile of the three rigid insulation options. Rigid insulation is one of the best tools to reduce your energy costs.
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