Tpo Roofing Fire Rating

Mechanically attached it provides high wind uplift ratings and offers simplified installation that reduces labor and material costs.

Tpo roofing fire rating.

During the production process the manufacturer adds fire retardant chemicals to the composition of the material. Class a is the highest rating offering the highest resistance to fire and unrated is the worst. Ultraply tpo invisiweld system the firestone ultraply tpo invisiweld system is a high performance non penetrating tpo membrane fastening system. Customer choice of insulation since single ply membrane roofing does not include the insulation factor as a customer you have more options to choose from to insulate your facility s roof.

The maximum flame spread is 6 feet for a class a rated roof 8 feet for class b and 13 feet for class c. Withstand a burning brand measuring 1 5 x 1 5 and weighing 1 4 gram. In the world trade tower collapse heat load on the connections of steel trusses is suspect. 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.

Time temperature ratings the third major roof system fire test is astm e 119. Reflective and penetrable most tpo is usually white and extremely reflective. Roofing it right with dave and wally when you re facing your next low slope roofing challenge you re going to wish you had dave and wally up there with you. Experience ingenuity and a sense of humor.

This is a system test that includes structural members such as beams trusses and roof deck. Experience maximum flame spread of 13 feet. Roofing with a class c rating is able to. 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.

Tpo s membrane s white reflective surface exceeds the epa s energy star requirements and white tan and gray are listed with the cool roof rating council. Pressure treated shakes and shingles are the most common roofing materials to fall under the class b rating. The slope of the test specimen is preselected and since steeper slopes are more of a challenge due to melting material feeding the fire the rating applies to the maximum slope passed. These two consummate roofing pros bring three important tools to every job.

Fire rated class a both tpo and epdm membranes are class a fire resistant. Class c roofing provides only light fire protection.