Fire Rated Roofing Systems

Your roof can have one of four fire ratings classifications.

Fire rated roofing systems. How are roofs rated. These assemblies need to meet fire and smoke safety and environmental sustainability requirements. A class a roof is ideal for fire protection and may be required by your building codes depending on your place of residence. External fire exposure class a b or c.

To learn more about our roofing systems click on one of the product boxes below. 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. Class a fire rated tpo membranes and epdm can achieve underwriters laboratories ul class a fire resistance listings by adding fire retardant chemicals during the manufacturing process.

Astm e108 defines fire test methods for roof coverings. Roofing systems must meet or exceed building codes and insurance requirements. 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. Since 1980 firestone roofing systems have been installed on hundreds of thousands of roofs worldwide.

Firestone building products is a leading manufacturer of high performing roofing systems for commercial industrial and residential roofing applications. Fire ratings may pertain to resistance to fire from above the roof system the familiar class a b or c ratings or fire exposure from the building interior the underside of the roof deck. The different roofing materials that are available for installation on your home are all evaluated for their fire resistant capabilities. Fire rated wall floor and ceiling assemblies provide the necessary fire and smoke barriers to create compartmentalization during a fire safeguarding against the spread of fire and smoke within a building or to and from a building.

Tested roof systems are fire classified class a b or c where the most fire resistant roof assemblies are class a and class c is least resistant. Class a class b class c or unrated. Building code fire resistance requirements building codes establish fire resistance requirements for roofs based on the type of construction e g concrete steel wood for the building. Our roof systems are rated by code for external fire resistance under deck exposure and time temperature resistance.

These tests may be conducted at ul inc fm global or any other certified testing laboratory. Iko fire rated roofing systems include those designed to handle extreme temperatures and to mitigate fire. The prevent line of polyester reinforced or composite fire rated cap sheets provide an extra protective coating and line of defense to iko s premium asphalt based roofing systems.