However if that is not the case then you need to contact the manufacturer of the roofing and see how their product was installed when it passed class a testing.
Is metal roof class a.
Ul 2218 standard for impact resistance of prepared roof covering materials.
Class a is the highest rating offering the highest resistance to fire and unrated is the worst.
To achieve a class a rating the roof must be effective against severe fire exposure.
For the convenience of your customers we provide installation guides and metal roofing installation how to videos to support their building projects.
An example of an unrated covering is an untreated wood shake roof.
While the life of a metal roof is much longer investing in a metal roof only makes sense if you plan to stay in your home long enough to enjoy the cost benefits.
They re also simple to install.
I believe that under the current icc code if you have a steel roof covering it automatically receives class a regardless of the rest of the assembly.
This is proven if it can.
Most if not all metal roofing and wall systems are class a fire rated and noncombustible making it the most resistant to catching on fire.
Class a roof assemblies include those with coverings of brick masonry or an exposed concrete roof deck.
Metal roofs can be noisy especially during a heavy rain or hailstorm.
Roofing materials are changing for the better becoming more and more advanced each year.
Examples of a class a roof covering include concrete or clay roof tiles fiberglass asphalt composition shingles and metal roofs.
Astm e108 fire resistance fire rated roof systems ibc metal roof metal roof advantages ul 790.
Experience maximum flame spread of 6 feet.
Because metal roof materials are noncombustible they typically have a class a fire rating the most fire resistant rating.
Just be aware that part of a roof s overall classification depends on materials beneath the surface that could ignite in intense heat too.
A stone coated steel roof costs about 2 1 2 times as much as a standard asphalt roof.
Class a roofing is the preferred choice for any home but this type of roofing is particularly important if you live in an area that is prone to wildfires.
This class for roof will qualify homeowners for a discount with most insurance companies.
Our metal roof and wall panels qualify for underwriters laboratories ul class a fire rating ul 90 wind uplift rating and class 4 ul impact resistance hail rating.