When properly installed in a new construction home, radiant barriers significantly reduce attic heat and cooling costs. They reflect radiant heat away from the shingles and into the attic space, which helps keep the shingles cool and the interior living spaces cooler as well. They don’t, however, reduce the other two forms of heat transfer – conduction and convection. This link :bryarssprayfoam.com
The most common radiant barrier is a structural sheathing panel that combines OSB with a reflective material such as aluminum foil. Another option is a foam-faced OSB product that serves as roof sheathing and radiant barrier in one. The panels should be installed so that there is an air space on at least one side of the barrier. If the barrier is placed directly under the shingles and felt, it will be ineffective at blocking radiant heat.
Using Radiant Barriers Effectively in the Attic
Regular inspections are necessary to ensure that the radiant barrier is working as designed and that any moisture problems, such as condensation, are addressed promptly. Moisture can compromise the effectiveness of a radiant barrier and lead to mold growth. In addition, moisture can damage and destroy other insulation materials in the attic.
When used correctly, radiant barriers can provide substantial energy savings for homeowners in Florida and other hot climates. They are especially helpful for homes with ductwork in the attic, as the ducts will be much cooler than they would be without a radiant barrier. Energy studies have shown that a radiant barrier can decrease attic temperatures by up to 42%, which can significantly lower air conditioning costs in these hot climates.
Bryars Spray Foam
Elrod, Alabama (Service area type of client)
(205) 576-5009