// CODE SNIPPET
932.5.3 Gravity Ventilation Ducts
JUMP TO FULL CODE CHAPTER
Each hood shall be connected to a gravity ventilation duct extending in a vertical direction to outside the building. This duct shall be of the same construction as the hood and shall have a minimum cross-sectional area of not less than one-fifteenth of the face opening area of the hood. The duct shall terminate not less than 12 inches (305 mm) above a portion of a building within 4 feet (1219 mm) and terminate not less than 4 feet (1219 mm) from an openable window or other opening into the building or adjacent property line. The duct opening to the outside shall be shielded, without reduction of duct area, to prevent entrance of rain into the duct. The duct shall be supported at each section by noncombustible supports.
Related Code Sections
932.5.3 Installation of Specific Appliances, Gravity Ventilation Ducts
Each hood shall be connected to a gravity ventilation duct extending in a vertical direction to outside the building. This duct shall be of the same ...
Los Angeles Mechanical Code > 9 Installation of Specific Appliances > 932.0 Small Ceramic Kilns > 932.5 Installations Inside Buildings > 932.5.3 Gravity Ventilation Ducts
1105.5.1 Refrigeration, Permanent Gravity Ventilation Openings
Permanent gravity ventilation openings of not less than 2 square feet (0.2 m 2 ) net free area opening shall be terminated directly to the outside ...
Los Angeles Mechanical Code > 11 Refrigeration > 1105.0 General Requirements > 1105.5 Ventilation of Rooms Containing Condensing Units > 1105.5.1 Permanent Gravity Ventilation Openings
409.0 Ventilation Air, Ducts
[OSHPD 1, 2, 3 & 4] Ducts which penetrate ...
453.4.7 Special Detailed Requirements Based on Use and Occupancy, Ventilation
Incompatible materials shall not be conveyed in the same duct system. Combined products in mechanical exhaust ducts shall not create a physical ...
Los Angeles Building Code > 4 Special Detailed Requirements Based on Use and Occupancy > 453 Group L [SFM] > 453.4 Construction > 453.4.7 Ventilation
4184.108.40.206 Special Detailed Requirements Based on Use and Occupancy, Ventilation
not connect to another duct system outside that fabrication area within the building. A ventilation system shall be provided to capture and exhaust gases ...
Los Angeles Building Code > 4 Special Detailed Requirements Based on Use and Occupancy > 415 Groups H-1, H-2, H-3, H-4 and H-5 > 415.11 Group H-5 > 415.11.1 Fabrication Areas > 4220.127.116.11 Ventilation