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Section 1402 — PERFORMANCE REQUIREMENTS

1402.8 Projections and appendages.

San Francisco Building Inspection Commission Codes · 2022 edition · updated 2026-08-28 · San Francisco

Provisions shall be made at the outer edge of all projections and appendages to control rainwater backflow under the projection. Ventilation shall be provided for all enclosed spaces of exposed soffits, bays and other projections in wood framed construction.

Where an uncovered balcony or deck with an impervious surface exceeds 200 square feet (18.58 m [2] ) in area, drainage shall be conveyed directly to a building drain or building sewer or be conveyed to an approved alternate location based on approved geotechnical and engineering design.

Chapter 15 ROOF ASSEMBLIES AND ROOFTOP STRUCTURES

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