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Duro-Last Two Way Vents | Commercial Ventilation | Jewett Roofing
Ballowing_When wind rushes over the edge of a building, it creates vortexes of wind, like mini tornadoes. These wind vortices cause pockets of low pressure to develop above the roof surface. The air inside the roof system has a higher pressure relative to the air above the roof when the wind is blowing. So the pressure differential causes the ballooning_Ballooning stresses the membrane causing it to stretch and wear more quickly.