IRC2018R703.2

Water-Resistive Barrier

Original source

Plain-English Explanation

Section R703.2 addresses water-resistive barrier. This ensures exterior wall coverings are properly installed to protect your home from moisture, wind, and weather damage.

For the Contractor

Per IRC R703.2 (Water-Resistive Barrier): install WRB per manufacturer specs, verify flashing at all transitions, and document installation before covering.