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// CODE SNIPPET

303.8 Equipment and Appliances on Roofs

California Mechanical Code 2016 > 3 General Regulations > 303.0 Installation > 303.8 Equipment and Appliances on Roofs
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Equipment and appliances on roofs shall be designed or enclosed so as to withstand climatic conditions in the area in which they are installed. Where enclosures are provided, each enclosure shall permit easy entry and movement, shall be of reasonable height, and shall have not less than a 30 inch (762 mm) clearance between the entire service access panel(s) of the equipment and appliance, and the wall of the enclosure. [NFPA 54:9.4.1.1]

303.8.1 Load Capacity

Roofs on which equipment and appliances are to be installed shall be capable of supporting the additional load or shall be reinforced to support the additional load. [NFPA 54:9.4.1.2]

303.8.2 Fasteners

Access locks, screws, and bolts shall be of corrosion-resistant material. [NFPA 54:9.4.1.3]

303.8.3 Installation of Equipment and Appliances on Roofs

Equipment and appliances shall be installed in accordance with the manufacturer's installation instructions. [NFPA 54:9.4.2.1]

303.8.4 Clearance

Equipment and appliances shall be installed on a well-drained surface of the roof. Not less than 6 feet (1829 mm) of clearance shall be between a part of the equipment and appliance and the edge of a roof or similar hazard, or rigidly fixed rails, guards, parapets, or other building structures not less than 42 inches (1067 mm) in height shall be provided on the exposed side. [NFPA 54:9.4.2.2]

303.8.5 Electrical Power

Equipment and appliances requiring an external source of electrical power for its operation shall be provided with the following:
  1. A readily accessible electrical disconnecting means within sight of the equipment and appliance that will completely de-energize the equipment and appliance.
  2. A 120-VAC grounding-type receptacle outlet on the roof adjacent to the equipment and appliance. The receptacle outlet shall be on the supply side of the disconnect switch. [NFPA 54:9.4.2.3]

303.8.6 Platform or Walkway

Where water stands on the roof at the equipment and appliance, or in the passageways to the equipment and appliance, or where the roof is of a design having a water seal, an approved platform, walkway, or both shall be provided above the waterline. Such platforms or walkways shall be located adjacent to the equipment and appliance and control panels so that the equipment and appliance is capable of being safely serviced where water stands on the roof. [NFPA 54:9.4.2.4]

Related Code Sections


303.8 General Regulations, Equipment and Appliances on Roofs
Equipment and appliances on roofs shall be designed or enclosed so as to withstand climatic conditions in the area in which they are installed. Where ...
California Mechanical Code 2016 > 3 General Regulations > 303.0 Installation > 303.8 Equipment and Appliances on Roofs
508.0 Water Heaters, Equipment and Appliances on Roofs
Equipment and appliances on roofs shall be designed or enclosed so as to withstand climatic conditions in the area in which they are installed. Where ...
California Plumbing Code 2016 > 5 Water Heaters > 508.0 Equipment and Appliances on Roofs
304.3 General Regulations, Access to Equipment and Appliances on Roofs
Equipment and appliances located on roofs or other elevated locations shall be accessible. [NFPA 54:9.4.3.1 ...
California Mechanical Code 2016 > 3 General Regulations > 304.0 Accessibility for Service > 304.3 Access to Equipment and Appliances on Roofs
508.2.3 Water Heaters, Platform or Walkway
Where water stands on the roof at the equipment and appliance or in the passageways to the equipment and appliance, or where the roof is of a design ...
California Plumbing Code 2016 > 5 Water Heaters > 508.0 Equipment and Appliances on Roofs > 508.2 Installation of Equipment and Appliances on Roofs > 508.2.3 Platform or Walkway
508.3.1 Water Heaters, Access
Buildings exceeding 15 feet (4572 mm) in height shall have an inside means of access to the roof, unless other means acceptable to the Authority ...
California Plumbing Code 2016 > 5 Water Heaters > 508.0 Equipment and Appliances on Roofs > 508.3 Access to Equipment and Appliances on Roofs > 508.3.1 Access
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