Science Of Roofing Shingles

For more than a century gaf has pioneered development and manufacturing of high performance residential and commercial roofing products through advanced r d and real world scientific programs.

Science of roofing shingles.

Then they ll also shed some of that heat into buildings. The science of roofing. In ashrae fundamentals 2001 15 lb asphalt felt has a wet cup permeance of 5 6 and 15 lb tar felt is 18 2 perms. And that could cut home cooling bills.

Our technical chemical and engineering expertise is second to none when it comes to the roofing industry. Beyond the impressive curb appeal they also come with the advanced performance of patented surenail technology a technological breakthrough in roofing. These shingles are available in all the popular colors. The typical underlayment used under asphalt shingles in residential construction is quite permeable.

Asphalt roofing shingles especially dark ones like those shown here can get scorching hot on summer days. Trudefinition duration shingles are specially formulated to provide dramatic color contrast and dimension to any roof. Consumer reports just finished its first comprehensive review of asphalt roofing shingles in more than a decade and found that the best of the batch are more than twice as strong as the competition. Roofing felts or underlayments vary greatly in their permeability to water vapor.