4 commonly asked questions related to Hurricane DoorsÂ
Hurricane doors are time-tested and approved by ASTM Regulations. They are mostly used in parts of Northern America which face perennial bout of hurricanes, hailstorms and tornadoes. Hurricane doors are high-impact resistant doors that can withstand a pressure of up to 80 millimetres of mercury.
Q1 Can Hurricane doors be installed at higher elevations?
Hurricane doors can withstand wind blowing at high speeds. It can resist high pressure belts and can be installed with relative ease than conventional doors. It can be fixed at a height of 30 feet in the air or even higher in places where the pressure is lower. It need not meet any design configuration.
Q2 Are all hurricane doors available in the market fully impact-resistant products? Hurricane doors necessarily have to meet the testing regulations set by ASTM. To be considered as a part of the impact-resistant products, Hurricane doors are made to pass through a stringent lab testing condition under the Florida Building Code. With increasing instances of hurricanes and storms hitting the main land of America, disaster management team stick to only top-class segment of hurricane doors.
Q3 As per NOA terms, what are dif ferent types of Hurricane door NOA certifies two types of Hurricane doors. They are: Large missile-tested doors Small missile-tested doors Doors tested with large missile guns have to face a six-foot canon with 9-pound 2 by 4 lumber shot at the door sample with speed of 50 feet per second. Doors tested with the small missile guns have to face a six-foot canon with 9-pound 2 by 4 lumber shot at the door sample with speed of 50 feet per second.
Q4 Does NOA per form the Wind load calculations for the Hurricane doors?
Yes. Authorities offer NOA Certification only after accurately performing the wind load calculations under practical hurricane conditions. Wind load calculations account for the pressure exerted on the door structure and the frame components by blowing wind. It is tested for garage doors, entry doors as well windows. The wind load pressures are calibrated and marked on the door sample in positive and negative values. The dual number system bears the wind load acting on and away from the building.
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