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515.3 Pressure Relief Vent
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For family mausoleum units where all crypts are bordering an exterior wall, pressure relief ventilation shall be provided from the crypt to the outside of the mausoleum through the exterior wall or roof. For all other mausoleum units, each crypt shall have a pressure relief vent from the crypt to the roof of the mausoleum. The minimum nominal pipe size shall be 1 inch (25 mm). The system shall have a minimum of one-eighth unit vertical to 12 units horizontal (1-percent slope). The piping shall not be trapped or installed to trap water or condensate.
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515.3 Exhaust Systems, Pressure Relief Vent
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2017 FBC - Mechanical, 6th edition > 5 Exhaust Systems > 515 Mausoleum Relief Vent > 515.3 Pressure Relief Vent
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2014 FBC - Mechanical, 5th edition > 5 Exhaust Systems > 515 Mausoleum Relief Vent > 515.3 Pressure Relief Vent
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2020 FBC - Mechanical, 7th edition > 5 Exhaust Systems > 515 Mausoleum Relief Vent > 515.3 Pressure Relief Vent
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A pressure relief vent shall be provided for each crypt. Niches shall not require pressure relief systems ...
460.7.2 Special Detailed Requirements Based on Use and Occupancy, Crypt Relief Vent
to the outside of the mausoleum through the exterior wall or roof. For all other mausoleum units, each crypt shall have a pressure relief vent from the crypt ...
2014 FBC - Building, 5th edition > 4 Special Detailed Requirements Based on Use and Occupancy > 460 Mausoleums and Columbariums > 460.7 Crypts > 460.7.2 Crypt Relief Vent