// CODE SNIPPET
B305.3 Crawl Space Ventilation
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Screened vents without closures shall be installed around the perimeter of the house to connect the crawl space with outdoor air.
The crawl space vents shall have a total area equal to either:
- At least 1/150 of the area enclosed by the crawl space if the crawl space is exposed to bare soil; or
- At least 1/300 of the area enclosed by the crawl space if the crawl space is completely covered by a substructure membrane.
The crawl space shall not contain structures that restrict ventilation in the crawl space. If freeze protection is provided for plumbing in the crawl space, the protection shall not restrict air ventilation in the crawl space.
Related Code Sections
B305.3 Chapter 9B-52 F.A.C. Florida Standard for Passive Radon-Resistant Construction, Crawl Space Ventilation
The crawl space shall not contain structures that restrict ventilation in the crawl space. If freeze protection is provided ...
2020 FBC - Building, 7th edition > B Chapter 9B-52 F.A.C. Florida Standard for Passive Radon-Resistant Construction > B301 Construction Requirements for Passive Radon Control > B305 Buildings With Crawl Spaces > B305.3 Crawl Space Ventilation
E305.7 Florida Standard for Radon-Resistant New Commercial Construction, Crawl Space Ventilation
Crawl spaces shall be passively ventilated or shall be constructed with an active soil-depressurization system in compliance with Chapter 4. No ...
2017 FBC - Building, 6th edition > E Florida Standard for Radon-Resistant New Commercial Construction > E305 Buildings With Crawl Spaces. > E305.7 Crawl Space Ventilation
E305.7 Florida Standard for Radon-Resistant New Commercial Construction, Crawl Space Ventilation
Crawl spaces shall be passively ventilated or shall be constructed with an active soil-depressurization system in compliance with Chapter 4. No ...
2020 FBC - Building, 7th edition > E Florida Standard for Radon-Resistant New Commercial Construction > E301 Construction Requirements Forpassive Controls > E305 Buildings With Crawl Spaces > E305.7 Crawl Space Ventilation
F305.3 Florida Standard for Passive Radon-Resistant New Residential Building Construction, Crawl Space Ventilation
The crawl space shall not contain structures that restrict ventilation in the crawl space. If freeze protection ...
2020 FBC - Residential, 7th edition > F Florida Standard for Passive Radon-Resistant New Residential Building Construction > F305 Buildings With Crawl Spaces > F305.3 Crawl Space Ventilation
F305.3 Florida Standard for Passive Radon-Resistant New Residential Building Construction, Crawl Space Ventilation
The crawl space shall not contain structures that restrict ventilation in the crawl space. If freeze protection ...
2017 FBC - Residential, 6th edition > F Florida Standard for Passive Radon-Resistant New Residential Building Construction > F305 Buildings With Crawl Spaces > F305.3 Crawl Space Ventilation