Fire Rated Roof Systems

These assemblies need to meet fire and smoke safety and environmental sustainability requirements.

Fire rated roof systems.

Our roof systems are rated by code for external fire resistance under deck exposure and time temperature resistance. 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. Class a class b class c or unrated. E108 defines the following conditions.

Iko fire rated roofing systems include those designed to handle extreme temperatures and to mitigate fire. 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. Count on iko for the best in fire rated roofing systems. Class a is the highest rating offering the highest resistance to fire and unrated is the worst.

Over non combustible roof decks such as steel poured gypsum or concrete only the spread of flame on the top surface of the roof system is evaluated. Overview 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. One goal of this column will be to increase your understanding of each of these ratings and what the rating does and does not do for your peace of mind. Fires that originate outside of the structure itself.

Your roof can have one of four fire ratings classifications. 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. A class a roof is ideal for fire protection and may be required by your building codes depending on your place of residence. The maximum flame spread is 6 feet for a class a rated roof 8 feet for class b and 13 feet for class c.

Underwriters laboratories has defined the ul 790 standard tests of roofing material fire resistance to external fire sources. External fire exposure class a b or c. 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.