Ul 90 Roof Rating

This test is to evaluate comparative resistance of roof assemblies to simulated load which correspond to wind velocities of 100 174 mph.

Ul 90 roof rating.

A safety factor of 2 means the maximum allowable design load is 45 psf. The resulting rating is used to apply a classification to the roof panels. Wind uplift class 90 what are the u l. The second number denotes the wind pressure in pounds per square foot.

Acryshield 1 to 6 gal sq. Bermuda roof panel construction no. Class 1 is rated at 1 90 the default standard for roof system not located in a coastal or high wind area. The ul 580 test method provides a.

Ul 90 wind uplift ratings n a. 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. 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. Ul 580 roof deck.

Classification a b or c and maximum 2 in incline for membrane manufacturer s insulated or non insulated roofing. Standard 580 tests for wind uplift resistance of roof assemblies. Morin corp seams may be 45 90 or 180. Metal roofing systems inc mrs system 2500 2.

238 uplift class 90 fire not investigated reinforcements used 1. This test evaluates the roof deck its attachments to supports and roof covering materials only. Any epdm tpo hypalon pvc tpa modified bitumen or cpe single ply membrane system mechanically fastened or fully adhered non insulated or insulated. Ul 1897 roofing systems uplift resistance certifications.

November 02 2006 ansi approved. Ul standard ul 580 edition 5 standard for tests for uplift resistance of roof assemblies edition date. Roofing bearing the ul classification mark. 405 tgkx 405 download plywood deck cee lock construction no.

Fm global states their panel ratings as 1 60 1 90 1 120 and so on. 60 and 90 ratings established for roof deck constructions by ul 580 testing. This rating is used to apply a classification to roof panels. Class 1 roof panels are rated at 1 90.

Metal roof deck panels no. May be reinforced with fabric 3 oz sq yd max.