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604.12 Weatherproof Barriers
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Insulated exterior ducts shall be protected with an approved weatherproof barrier ...
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Escalators shall be so constructed that exposure to the weather will not interfere with normal operation ...
Safety Code for Elevators and Escalators 2013 of Maryland > 6 Escalators and Moving Walks > 6.1 Escalators > 6.1.8 Outdoor Escalators > 6.1.8.1 Weatherproofing
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Escalators shall be so constructed that exposure to the weather will not interfere with normal operation ...
Safety Code for Elevators and Escalators 2016 of Maryland > 6 Escalators and Moving Walks > 6.1 Escalators > 6.1.8 Outdoor Escalators > 6.1.8.1 Weatherproofing