Ul 90 Certified Roof

Metal roofing systems inc mrs system 2500 2.

Ul 90 certified roof.

Ul 90 wind uplift ratings. Roofing bearing the ul classification mark. A 10 foot by 10 foot sample of roofing material is installed onto a test platform. 405 tgkx 405 download plywood deck cee lock construction no.

Uplift resistance testing with ul 580 test platform. Testing standards and the markings that identify certified roof deck constructions. Some metal roof systems have been investigated and listed by underwriters laboratories inc. Ul with regard to wind uplift.

The test evaluates the roof panel panel clips fasteners and the substrate. Wind uplift class 90 what are the u l. The ul certification mark on roofing products and assemblies is relied on by code enforcement officials and buyers to verify that your products and systems meet regulatory requirements. Standard 580 tests for wind uplift resistance of roof assemblies.

Ul 580 lists roof assemblies as class 30 60 or 90 meaning that they are designed and engineered to withstand continuous wind speeds of 30 60 or 90 pounds per square foot. One common misconception is the belief that fm approvals windstorm classification ratings such as 1 60 1 90 or 1 120 correlate to wind speeds of 60 90 or 120 miles per hour mph. 30 class 60 and class 90 tests. Metal roof deck panels no.

This test is to evaluate comparative resistance of roof assemblies to simulated load which correspond to wind velocities of 100 174 mph. The test evaluates the roof deck or the roof deck assembly. 238 uplift class 90 fire not investigated reinforcements used 1. This program offers a step by step application process to ensure that contractors are current on the latest industry accepted application procedures and installation techniques.

It also serves as a key differentiator for products within the roofing market. Bermuda roof panel construction no. The malarkey certified residential contractor program offers roofing excellence for our contractors and their team. The ul 580 test method provides a comparative measure of uplift resistance of roof deck constructions.

Building owners and some specifiers and designers don t realize that the ratings apply to uplift pressures in pounds per square foot psf not wind speeds.