Wind Resistance Of Metal Roof

These floor plans increase wind resistance.

Wind resistance of metal roof.

Metal roofing has a 140 mph wind rating meaning it can withstand wind gusts up to 140 miles per hour. This test determines the uplift resistance of roof assemblies consisting of the roof deck and roof covering materials by evaluating the comparative resistance of roof assemblies to positive and negative pressures. Panel width and profile metal type and thickness clip type and frequency type and number of fasteners and the roof deck contribute to the uplift resistance of every metal panel roof system. It s also a good idea to have a 30 degree sloped hip style roof with multiple slopes for the best possible performance.

Types of wind uplift tests. A metal building is designed to use the capacity of every purlin for wind uplift resistance and the original load path for a metal building is maintained when a retrofit single ply roof system is mechanically attached to every purlin. Ul 580 is the standard for tests for uplift resistance of roof assemblies. Get the underlayment right.

Under high wind conditions says architect rich carroll metal roofing systems have wind resistance and uplift. Traditional asphalt shingles are prone to blow offs. A small scale typically 10 10 ft sample of roofing material is installed on the testing platform. Metal roof systems in high wind regions april 2009 page 1 of 5 purpose.

As a company we worked with local contractors and agencies to support rebuilding efforts in the affected areas. A wind resistant roofing material won t help you very much if the decking system below isn t any good. The ul 580 standard tests the uplift wind resistance of a metal roofing system including the panels accessories clips underlayment and fasteners and structural support frame. A quality installation of a quality metal roof with wind resistance could have made a difference during the horrific hurricanes and tropical storms of 2017 which impacted and displaced thousands of people.

To recommend practices for designing and installing metal roof systems that will enhance wind resistance in high wind regions i e greater than 90 miles per hour mph gust design wind speed. Metal s resistance to high wind events. Each shingle that comes loose weakens the roofing system and leaves the home susceptible to water as well as wind damage.