// CODE SNIPPET
507.2.1 Reduced Open Space
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The public ways or yards of 60 feet (18 288 mm) in width required in Sections 507.3, 507.4, 507.5, 507.6 and 507.12 shall be permitted to be reduced to not less than 40 feet (12 192 mm) in width, provided that the following requirements are met:
- The reduced width shall not be allowed for more than 75 percent of the perimeter of the building.
- The exterior walls facing the reduced width shall have a fire-resistance rating of not less than 3 hours.
- Openings in the exterior walls facing the reduced width shall have opening protectives with a fire protection rating of not less than 3 hours.
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Related Code Sections
507.2.1 General Building Heights and Areas, Reduced Open Space
3 hours. Openings in the exterior walls facing the reduced width shall have opening protectives with a fire protection rating of not less than 3 ...
507.2.1 General Building Heights and Areas, Reduced Open Space
hours. Openings in the exterior walls facing the reduced width shall have opening protectives with a fire protection rating of not less than 3 hours ...
402.2 Special Detailed Requirements Based on Occupancy and Use, Open Space
to be reduced to not less than 40 feet (12 192 mm), provided that the following requirements are met: The reduced open space shall not be allowed for more ...
402.2 Special Detailed Requirements Based on Occupancy and Use, Open Space
to be reduced to not less than 40 feet (12 192 mm), provided that the following requirements are met: The reduced open space shall not be allowed for more ...
29.11.4.7* Single- And Multiple-Station Alarms and Household Signaling Systems,
Detectors or alarms installed on an open-joisted ceiling shall have their smooth ceiling spacing reduced where this spacing is measured at right ...