Ul 90 Roof Rating

The resulting rating is used to apply a classification to the roof panels.

Ul 90 roof rating. 30 class 60 and class 90 tests. The second number denotes the wind pressure in pounds per square foot. Fm global states their panel ratings as 1 60 1 90 1 120 and so on. The ul 580 test method provides a.

Metal roofing systems inc mrs system 2500 2. This test evaluates the roof deck its attachments to supports and roof covering materials only. Acryshield 1 to 6 gal sq. Classification a b or c and maximum 2 in incline for membrane manufacturer s insulated or non insulated roofing.

Ul 1897 roofing systems uplift resistance certifications. To be tested in accordance with ul 580. This test is to evaluate comparative resistance of roof assemblies to simulated load which correspond to wind velocities of 100 174 mph. Class 1 roof panels are rated at 1 90.

Standard 580 tests for wind uplift resistance of roof assemblies. Roofing bearing the ul classification mark. 60 and 90 ratings established for roof deck constructions by ul 580 testing. 405 tgkx 405 download plywood deck cee lock construction no.

Wind uplift class 90 what are the u l. Class 1 is rated at 1 90 the default standard for roof system not located in a coastal or high wind area. A safety factor of 2 means the maximum allowable design load is 45 psf. Furthermore the roofing designer or specifier sometimes assumes if there is a design wind speed requirement of 90 mph then the roof system must have a 1 90 rating which is not always true at least not for the reason they think maybe for tall buildings or if other factors exist.

Spread of flame ul 790 burning brand testing ul 790 impact test ul 2218 intermittent flame testing ul 790 solar reflectance thermal emittance coating thickness astm c1549 and c1371 wind resistance astm d3161 wind uplift ul 1897 10x10 and 12x24 deck wind uplift ul 580. Ul standard ul 580 edition 5 standard for tests for uplift resistance of roof assemblies edition date. This rating is used to apply a classification to roof panels. Morin corp seams may be 45 90 or 180.

May be reinforced with fabric 3 oz sq yd max. Bermuda roof panel construction no. The ratings are stated as 1 60 1 90 1 120 and so on referring to wind pressure in pounds per square foot psf. November 02 2006 ansi approved.

Any epdm tpo hypalon pvc tpa modified bitumen or cpe single ply membrane system mechanically fastened or fully adhered non insulated or insulated. Ul 580 roof deck.