What is the difference between Radiant Barrier Spray Paint and Radiant Barrier Foil. I hear the radiant barrier spray advertised a lot on the radio.
The differences are like comparing Apples to Oranges. They are VERY DIFFERENT products and the foil ALWAYS outperforms paint in reflectivity.
Will Radiant Barrier still help if you can’t get it under my whole roof?
YES. Think of radiant barrier as shade for your home. The more the better. Installing radiant barrier has a cumulative effect. Most homes have Cool Foil covering 70% to 90% of their attic.
Can Radiant Barrier be installed between my shingles and my roof deck when I have a new roof installed?
NO! NO! NO! It WILL NOT work. You MUST have an air gap to have a radiant barrier
Will Installing Radiant Barrier increase the temperature of my shingles and damage them?
The Department Of Energy has done testing and concluded that shingles temperature increase between 2º-10º degrees. Considering that on a hot Summer Day Shingles can exceed 170º this small increase in temperature has a minimal affect (if any) on shingle life.
If we lay foil over my ducts, will this help?
If you have silver flex ducts, you already have a radiant barrier on your ductwork. An additional layer will not have much of an effect. If you have black, or grey ductwork foil over the ductwork will help reduce radiant heat gain into the ducts.
How far down the roof slope should you put the foil. Will you block airflow from the soffits?
It’s almost impossible to block airflow from the soffits. In normal construction, the soffits are about 12” below the top of the wall plate. And, by stapling to the bottom of the rafters, you will always have an air passage the size of the rafters.
Should you tape the seams?
No It does not help/hurt the effectiveness of the foil.
Is this the same material that was developed by NASA?
NASA did develop Radiant Barrier Technology. It has been a public domain technology since the 1970’s. Radiant Barrier Technology is used in thousands of products like candy wrappers, potato chip bags, oil rig fire fighting suits, thermos bottles and emergency fire shelters and construction and insulation materials. Yes, NASA technology is used in all Radiant Barriers, but this is not the ACTUAL material used by NASA.
Will it affect my cell phone reception?
Usually it won’t. An easy way to test is to get a FREE SAMPLE. Cover your cell phone with the radiant barrier foil and call it. If it rings, then the phone should work find after installing foil insulation in your attic. To Receive your free sample go to contact us and fill out you’re info in the comment box just put Free SAMPLE
If i already have a metal roof will Cool Foil help me?
Yes it will! Metal roofs do reflect some radiant heat but not nearly the amount that Cool Foil reflects.
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