Radiant Barrier Under Metal Roof

Do we need the radiant barrier if it is a metal roof.

Radiant barrier under metal roof. Here is a page video where i explain how some products only 1 4 thick bubble foil claim to have an r value. Radiant barrier under metal and tile roofs don t believe anyone who tells you the product has an r value of 6. 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. In order to add moisture barrier under metal roof you can spray the undersides of the roof by using a thick layer of polyurethane spray foam.

This is probably the number used by some unique test method system which is not how it s installed under a metal roof. In this video ed uses thermal imaging to show you just how much heat roofingfoil reflects off a standard osb roof deck. If you are going to install a roof like this what a great time to go for it. It will help you to eliminate problems that may come when the house becomes extremely cold in the winter and terribly hot in the summer.

We take a look at how radiant barriers work the different types of radiant barriers and some of the. Our main house has a barrier and it is a great help in cooling. Raised roofs tile metal read the complete information on installing radiant barrier under a tile or metal roof. You will have the necessary air gap to make it work and the results are awesome.

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. Thank you for your help on this and all you have given us over the years. Polyurethane spray foam metal roof insulation. By installing roofingfoil radiant barrier under the battens 97 of the the radiant heat that would have been absorbed by the roof deck is now reflected.

In his final results you can see for.