FBC2023R703.14.3

Flame spread index.

Original source

Plain-English Explanation

Section R703.14.3 addresses flame spread index.. This ensures exterior wall coverings are properly installed to protect your home from moisture, wind, and weather damage.

For the Contractor

Per IRC R703.14.3 (Flame spread index.): install WRB per manufacturer specs, verify flashing at all transitions, and document installation before covering.