IRC2021R703.7.3
Water-resistive barriers.
Original sourcePlain-English Explanation
Section R703.7.3 addresses water-resistive barriers.. This ensures exterior wall coverings are properly installed to protect your home from moisture, wind, and weather damage.
For the Contractor
Per IRC R703.7.3 (Water-resistive barriers.): install WRB per manufacturer specs, verify flashing at all transitions, and document installation before covering.