We have a pretty good idea what’s on your mind when it comes to attic insulation. And if you don’t see your question below, just fill out our brief contact form and we will get back to you with an answer.

Will Attic Shield™ increase my roof temperature and damage my shingles?

No. Research by Building Science Corporation measured roof shingle temperatures above several inches of polyurethane foam on the underside of a roof deck (this foam blocks heat at the roof surface—like Attic Shield™ does—but is substantially more expensive than Attic shield™). Shingle temperatures were typically between two and five degrees warmer than roofs with similarly colored shingles and no roofing insulation. This compares with a difference of five to 10 degrees when changing from a lighter to a darker colored roof, with no attic Attic Shield™. Considering the fact that a Florida roof surface can reach 160°F or more during the summer, these increases are not significant.

What about my roof shingle warranty?

Major roofing manufacturers do not void their shingle warranties if Attic Shield™ is installed.

I’m about to have my roof replaced and the roofer is trying to sell me a foil-faced insulation sheet that goes underneath the shingles. Is this a good idea?

No, it’s a complete waste of money. A reflective foil surface will not block infrared heat energy transfer unless the reflective surface is separated from the heat source by an air space. Without an air space, any foil material is just a metal conductor that will transmit heat energy by conduction from the shingles to the roof sheathing material underneath the foil.

Why not just roll out the Attic Shield™ material across the top of my existing insulation?

While this will provide some benefit, we don’t recommend it. Dust will eventually build up on the foil surface facing the attic space and cancel the foil’s ability to reflect radiant heat. If this is the only practical option for your attic, a perforated Attic Shield™ is essential.

Wait a minute. Doesn’t Attic Shield™ have to be airtight to work?

No. Air movement transfers heat through convection. Attic Shield™ blocks radiated heat. Actually, since hot air rises naturally, any air movement upward to ridge vents or attic exhaust fans will keep the attic cooler.

Can foil-faced batt or board insulation work as Attic Shield™?

Not a good idea! In addition to the potential for dust build-up, direct exposure to radiant energy may pose a fire hazard from the glue that bonds the foil to the insulation batt. Some insulation manufacturers have introduced batts with fire-retardent glue, but the best place for Attic Shield™ in a Florida attic will always be on the underside of the roof deck with an airspace between the Attic Shield™ and the roof sheathing.