Fire Rated Roof Systems

Count on iko for the best in fire rated roofing systems.

Fire rated roof systems. Our roof systems are rated by code for external fire resistance under deck exposure and time temperature resistance. External fire exposure class a b or c. Class a class b class c or unrated. Fires that originate outside of the structure itself.

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

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. A class a roof is ideal for fire protection and may be required by your building codes depending on your place of residence. Your roof can have one of four fire ratings classifications. 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.

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. Iko fire rated roofing systems include those designed to handle extreme temperatures and to mitigate fire. 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. 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.

Underwriters laboratories has defined the ul 790 standard tests of roofing material fire resistance to external fire sources. The maximum flame spread is 6 feet for a class a rated roof 8 feet for class b and 13 feet for class c. Reflective or retentive tpo is generally white and highly reflective.