Asked by: Essadik Ortellado
asked in category: General Last Updated: 27th April, 2020

Can you put radiant barrier under shingles?

You can install the radiant barrier foil below the raised shingles either on top or below the battens. The easiest and best way is to run the foil out over the roofing felt, tack it down and then install the battens followed by shingles or metal roofing.

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Herein, is Radiant Barrier bad for shingles?

By blocking the mass insulation from absorbing heat and emitting it back to the roof, a radiant barrier can decrease the roof temperature at night by over 5 degrees. In short, radiant barrier should not void any shingle manufacturer's warranty and will not damage roof shingles or any other roofing material.

Also, can you put radiant barrier over insulation? Laying Foil Over (On Top of) Insulation on the Attic Floor This is probably the easiest method to install Radiant Barrier AtticFoil™ is to lay the foil out OVER the existing insulation on the attic floor. The reason this method is so effective is because radiant barrier makes regular insulation more effective.

Considering this, does a radiant barrier work?

A radiant barrier reduces the radiant heat transfer from the underside of the roof to the other surfaces in the attic. A radiant barrier works best when it is perpendicular to the radiant energy striking it. Some studies show that radiant barriers can reduce cooling costs 5% to 10% when used in a warm, sunny climate.

Can aluminum foil be used as a radiant barrier?

Aluminum foil has the radiant barrier properties of high reflectivity and low emissivity. That means the foil reflects much of the roof's heat back upward. You can usually purchase the radiant barrier foil in 4- or 5-foot-wide rolls. You just staple it up under the rafters.

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