Using Foil Backes Styrofoam For Radiant Barrier In Attic

If you use the single sided remember the foil side must face the air gap which in this example would mean the foil facesout toward the siding.

Using foil backes styrofoam for radiant barrier in attic.

This method also reduces the heat subject to attic mounted ac duct work thereby allowing them to work more efficiently. Crawlspaces are notoriously damp and contain high levels of moisture. Tyvek wrap optional studs board. The goal of a foil backed osb is to cool the air within the top layer of insulation in the attic or wall by emitting the radiant heat absorbed through the roof or exterior walls which reduces the delta t and lessens the overall energy use in a building.

Radiant barrier paint performed the worse providing a heat decrease in the conditioned space of around 19. 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. Products 60 48 26 rolls. Whether you re building a new home or improving an old one you can use a combination of spray foam encapsulation with radiant barrier foil to keep the heat out and improve the comfort within your home.

The results were very telling. In the absence of a foil insulation barrier the underside of the roof radiates all the heat directly into the attic. If your radiant barrier is radiant barrier decking then it s using the attic space as an air space so you can t cover it with spray foam. 26 wide perforated double sided radiant barrier foil for trusses.

The most popular use is as a radiant barrier in roofing. Foil backed osb is applied mostly in attics. In this case you could use spray foam or batt insulation on the attic floor but not directly on the foil in between the roof rafters. Another common use of the solid foil is under a home in a crawlspace.

However it is also used in wall systems. Radiant barriers are utilized to reduce summer heat gain in attics and help to improve the efficiency of green building envelopes. The attic overheats the house becomes warmer and your air conditioning bill. Atticfoil radiant barrier you can use either our double sided foil or our single sided foil for this application.

In this case the solid atticfoil can go over decking or over an underlayment below a metal or tile roof that has an air space. Radiantguard radiant barrier foil insulation installed in an attics can reduce attic temperatures by up to 30 degrees when stapled with a staple gun to the underside of roof rafters by reflecting up to 97 of the radiant heat that strikes its surface thereby reducing heat transfer from the attic to living spaces resulting in lower utility bills. We take a look at how radiant barriers work the different types of radiant barriers and some of the. Which type of radiant barrier is best.