How firesmart protects against flame spread fire penetration see video how the firesmart roofing system has been tested.
Fire rated roofing felt.
So for the national class designations aa is the top fire rating possible for a flat roof build up.
The signature range is a torch applied built up bituminous membrane roofing system.
Architects contractors and building and homeowners select metal roofing for its longevity durability and energy saving qualities.
The key is to construct a building in which a fire would take effect slowly allowing the occupants plenty of time to escape.
Firesmart capsheets provide a fire protection layer shielding the roof from both spread of flame and fire penetration.
Versashield fire resistant roof deck protection provides the very best fire protection.
The roof deck should be sound and level before laying the underlayment.
This product slows down fire burning similar to what a roof shingle would do so it is ideal under metal roofs where the shingles have been removed.
Also felt is flamable.
Underwriters laboratories has defined the ul 790 standard tests of roofing material fire resistance to external fire sources.
The rating scale is relatively simple and is rated from a to c.
Firesmart is a flat roofing membrane system.
The highest rating meaning the most fire resistant is classified as class a and is able to withstand severe fire exposure.
Class a is the highest rating offering the highest resistance to fire and unrated is the worst.
They can withstand strong wind gusts flying debris and hail.
The synthetic roof underlayments are far superior and many jurisdictions no longer allow felt.
Metal roofs are durable and can last up to 75 years.
Fire ratings for roofs are classified as either class a class b class c or are unrated if a roof covering cannot meet the requirements for any of these classifications.
In some jurisdictions roof assemblies are required to be fire resistant.
This is also why materials themselves are rated in respect to how long it would take fire to affect its structural abilities.
They are a class a fire rated roof covering.
Fires that originate outside of the structure itself.
The different roofing materials that are available for installation on your home are all evaluated for their fire resistant capabilities.
Roof covering packaging that encloses shingles or other roofing that have a fire rating will display the level of fire or wind resistance rating of the materials.
Roofing underlayment or felt is usually required for the ul fire rating to apply since shingles are usually tested with underlayment.
It simply takes longer for fire to affect fire resistant materials.
Fifteen pound or heavier felt underlayment is required by code in some areas.
One product which is included in tested flat roof buildups which achieves an aa rating is sig s signature torch on system exclusive to sig design technology.
Versashield fire resistant roof deck protection is a key part of the gaf lifetime roofing system 1 and has earned the good housekeeping seal.
