// CODE SNIPPET
504.11.1 Underfloor Areas
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Where the detached structure is located and constructed so that the structure or any portion thereof projects over a descending slope surface greater than 10 percent, the area below the structure shall have underfloor areas enclosed to within 6 inches (152 mm) of the ground, with exterior wall construction in accordance with Section 504.5 or underfloor protection in accordance with Section 504.6.
Exception: The enclosure shall not be required where the underside of exposed floors and exposed structural columns, beams and supporting walls are protected as required for exterior 1-hour fire-resistance-rated construction or heavy timber construction or fire-retardant-treated wood on the exterior side. The fire-retardant-treated wood shall be labeled for exterior use and meet the requirements of Section 2303.2 of the International Building Code.
Related Code Sections
504.11.1 Special Building Construction Regulations, Underfloor Areas
than 10 percent, the area below the structure shall have underfloor areas enclosed to within 6 inches (152 mm) of the ground, with exterior wall ...
505.11.1 Special Building Construction Regulations, Underfloor Areas
surface greater than 10 percent, the area below the structure shall have underfloor areas enclosed to within 6 inches (152 mm) of the ground, with exterior ...
506.3 Special Building Construction Regulations, Underfloor Enclosure
Buildings or structures shall have underfloor areas enclosed to the ground with exterior walls. Exception: Complete enclosure shall ...
Chapter 5 Special Building Construction Regulations
severity of the building site. Construction features regulated include underfloor areas; roof coverings; eaves and soffits; gutters and downspouts ...
505.7 Special Building Construction Regulations, Appendages and Projections
that the structure or any portion thereof projects over a descending slope surface greater than 10 percent, the area below the structure shall have underfloor areas ...