Wind Resistance Of Metal Roof

Each shingle that comes loose weakens the roofing system and leaves the home susceptible to water as well as wind damage.

Wind resistance of metal roof.

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. Metal s resistance to high wind events. It s also a good idea to have a 30 degree sloped hip style roof with multiple slopes for the best possible performance. Metal roof systems in high wind regions april 2009 page 1 of 5 purpose.

Metal panel roof systems installed over solid substrates with concealed clips or through fastened can be designed using the following test standards. Under high wind conditions says architect rich carroll metal roofing systems have wind resistance and uplift. Ul 580 is the standard for tests for uplift resistance of roof assemblies. 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.

Get the underlayment right. A metal roof can withstand decades of abuse from extreme weather like high winds heavy snow hail storms and even wildfires. 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 roofing has a 140 mph wind rating meaning it can withstand wind gusts up to 140 miles per hour.

Types of wind uplift tests. 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. Metal roofs can be a wise decision and a good investment in hurricane prone areas.

A small scale typically 10 10 ft sample of roofing material is installed on the testing platform. A wind resistant roofing material won t help you very much if the decking system below isn t any good. Traditional asphalt shingles are prone to blow offs.