Radiant Foil For Attic

We take a look at how radiant barriers work the different types of radiant barriers and some of the.

Radiant foil for attic.

You need r value on your attic floor and you need a radiant barrier either stapled to the bottom of your rafters or laid out over the attic insulation. 48 wide perforated double sided radiant barrier foil best selling. Radiant barriers are utilized to reduce summer heat gain in attics and help to improve the efficiency of green building envelopes. Products 60 48 26 rolls.

Since the foil is touching the paper it is conducting heat into the paper and then the paper radiates it into the attic. More buying choices 134 88 8 new offers. While this method of installation is one of the only two approved methods of installation there are a few things not being factored in this question. A radiant barrier can lower heat transfer from attics to the building below keep the attic space cooler and lower cooling costs by up to 17 in warmer climates.

Radiant barrier works by reflecting heat coming off the roof. If you face the foil in the attic and the paper out toward the roof it will work much better. The hot roof material then radiates its gained heat energy onto the cooler attic surfaces including the air ducts and the attic floor. The foil cannot radiate heat but is a excellent conductor of heat.

4 1 out of 5 stars 14. Let s take a look at the actual r value of eshield solarguard prodex and bubble foil products. Don t install a radiant foil barrier on top of attic insulation since condensation can form under it even on perforated foil resulting in a buildup of moisture which can reduce the effectiveness of insulation and cause moisture damage and rot. A key advantage to the foil is that it can be installed by the homeowner in an existing attic.

Most are about a thick or less. 26 wide perforated double sided radiant barrier foil for trusses. A radiant barrier reduces the radiant heat transfer from the underside of the roof to the other surfaces in the attic. The final type of radiant barrier we are looking at is the after market approach which involves stapling radiant barrier foil to the underside of the roofing joists.