When mixed with water it forms a film that hovers over a spill or burning liquid sealing the flammable vapors.
Foam roofing class b.
A thick typically 1 5 thick closed cell polyurethane waterproofing barrier seals the roof against leaks.
Just one inch of foam roofing can add a thermal resistance of more than r6 to the building s insulation rating.
The foam can be made to curve around joints for a waterproof membrane.
This roof system not only saves energy but also never wear out.
Spray polyurethane foam spf is the only roofing material that has no seams.
Separate to the above thermal barrier requirements both the ibc and nbc require that roof covering on roof assemblies that incorporate eps insulation must be classified as part of a class a b or c roof assembly.
Since this is a common practice in commercial construction eps insulation can be used without a thermal barrier in many projects.
All foam roofing applications require protective coatings over the top to act as a sunblock and protect against harmful uv rays and keep the roof maintainable.
Ace hardware is a good one or home depot and ask if they have any class b or c paint or coatings in stock.
Spf roofs are installed by spraying a liquid on the existing roof and allowing it to expand into a foam.
Cool roof coatings fall under the class of elastomeric coatings.
In the case of a spill a class b foam blanket prevents vapor production and ignition or in the case of a fire suppresses the blaze and prevents it from spreading or reigniting.
However a wide variety of homes can reap foam roofing benefits.
Membrane spray applied foam and coating and photovoltaic modules among others.
After cleaning the existing roof the spf roof can be applied directly over asphalt shingles concrete metal and wood.
By adding additional inches of spf roof insulation.
As long as the upper coating layer is maintained the roof will last for long.
This process means that the foam can conform to all roof shapes and types even irregularly shaped roofs.
Might be the best bet for a quick answer.
The dura foam roof system has a rigid and durable surface that you can walk on.
Dura foam roof are renewable so they are known as a green roof system.
Here in the valley that typically applies to homes built in the adobe or southwest styles.
Where class a class b or class c roofs are required and class b roof assemblies are suitable for use where class b or class c roofs are required.
Materials types of foam roofing.
As alluded to before foam roofing is an excellent fit for homes in hotter climates such as the one here in phoenix.
Hence proper maintenance of this roofing system helps to have savings of over 75 by never roofing it again.
Class b foam on the other hand repels carbon.