Trudefinition duration shingles are specially formulated to provide dramatic color contrast and dimension to any roof.
Science of roofing shingles.
The typical underlayment used under asphalt shingles in residential construction is quite permeable.
And that could cut home cooling bills.
These shingles are available in all the popular colors.
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.
Our technical chemical and engineering expertise is second to none when it comes to the roofing industry.
Asphalt roofing shingles especially dark ones like those shown here can get scorching hot on summer days.
Wood shingles or shakes require a minimum 1 4 inch vented airspace that separates the shingles shakes and the roofing felt placed over the roof sheathing for similar reasons.
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.
Roofing felts or underlayments vary greatly in their permeability to water vapor.
The science of roofing.
Beyond the impressive curb appeal they also come with the advanced performance of patented surenail technology a technological breakthrough in roofing.
A new coating can help shingles reflect more of the sunlight that heats them up.