How Radiant Barrier Works in Attics. Radiant barriers work by blocking radiant heat from being absorbed into our homes, garages, sheds, etc. resulting in a more comfortable and energy efficient space.

Create a green energy barrier by laying the radiant barrier foil out OVER the existing insulation on the attic floor. This method keeps heat out in summer and heat in during winter months, making it ideal for year-round benefit.

AtticFoil radiant barrier supply sells foil insulation for blocking heat in hot and cold climates.

SuperPerf™ 45″ wide radiant barrier is a double-sided roll that has been punch-perforated for maximum breathability. If you are laying radiant barrier foil on top of existing insulation, you should use SuperPerf™. This product is an AtticFoil™ exclusive and was designed for over-the-insulation installations inside atti

When the radiant rays from the sun hit a gable wall, it absorbs that radiation and re-radiates it across the attic, just like the slopes of the roof do. Therefore, you should use a radiant barrier in this area to block radiant heat gain.

How Radiant Barrier Works in Attics. Radiant barriers work by blocking radiant heat from being absorbed into our homes, garages, sheds, etc. resulting in a more comfortable and energy efficient space.

Radiant barrier is your first line of defense (against radiant heat) and traditional attic insulation (fiberglass or cellulose) is the second line of defense against conductive heat gain. Bottom line: you need a radiant barrier in addition to your traditional insulation.

When the radiant rays from the sun hit a gable wall, it absorbs that radiation and re-radiates it across the attic, just like the slopes of the roof do. Therefore, you should use a radiant barrier in this area to block radiant heat gain.

AtticFoil™ Single Sided Radiant Barrier Foil + Whitestill reflects 97% of radiant heat from the foil side, but has the addition of a white vinyl-like material on the second side for aesthetic purposes.

AtticFoil Radiant Barrier LLC is the home of the Original AtticFoil™, RoofingFoil™ + Underlayment (a synthetic roofing underlayment for metal and tile roofing), and BlueTex™ insulation for metal building applications.