Fire Resistant Roof Coating

Classes b and c denote progressively less fire resistant qualities.

Fire resistant roof coating.

Class c fire resistant roofing material. Manufactured using a highly effective fire retardant and underlaid with a fire resistant barrier this assembly is one of only a few synthetic roofing materials to get ul s class a fire rating. The fire rating of a roof covering is either class a class b class c or unrated. White seal 100 acrylic elastomeric reflective roof coating with high dirt pick up resistance model rc865 2 view.

Sb 432 has been the product of choice for use in elastomeric flame retardant roof coatings for over 25 years. Class a roofing materials are the most fire resistant. Expect to pay between 6 50 and 8 50 per square foot installed. 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.

Special in tumescent additives minimize flame spread in the event of fire provides ul class a performance. Once assembled the roof covering will be granted a class a b or c rating by approved testing agencies typically through ul 790 or astm e 108 depending on how effective the roof proves to be in terms of fire resistance. An unrated roof is the most vulnerable the most common example of an unrated roof covering is one made using non fire retardant treated wood shakes or shingles. By substituting some or all of the calcium carbonate with ath the flame retardance of the coating is improved to meet astm standards.

Obviously since wildfires and the fire season has become increasingly worse it is important to note the roofing materials that are the lowest rated. In mechanically attached and self adhered tpo pvc and modified bitumen systems self extinguishing. Henry 687 envirowhite 100 acrylic reflective elastomeric roof coating w dirt pickup resistance technology 24 piece model he687072. A fire resistant or fireproof roof gives the entire structure a better chance to survive a fire.

Class a is the highest rating offering the highest resistance to fire and unrated is the worst. Simple one step application. Class a is the most fire resistant and should be the. Rated coating solutions exist for just about any existing roof system recover or coating application and often can achieve.

Fire rating ul 790 class a 24 no rating available 70. Active coating expands in the presence of heat or flame to form a protecting self extinguishing layer installs up to 130 faster. Wood shake plywood or particle board roof are the most common roofing types listed as class c. Shingles are categorized into classes that identify their fire resistance.