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Whats the difference between dead load and live load?

April 26, 2017dead live load

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Whats the difference between dead load and live load?

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Dead load refers to the weight of the roof and roof mounted equipment that are permanently placed on the roof deck. This would include the weight of the insulation, roof membrane, recover roof, aggregate, coating, HVAC units, satellite dishes and other antennas, and cooling towers. Live load refers to the weight of temporary “stuff” that may be on a roof such as rain water in ponds or snow or ice buildup.