IRC2018R703.5.1
Vertical wood siding.
Original sourcePlain-English Explanation
Section R703.5.1 addresses vertical wood siding.. This ensures exterior wall coverings are properly installed to protect your home from moisture, wind, and weather damage.
For the Contractor
Per IRC R703.5.1 (Vertical wood siding.): install WRB per manufacturer specs, verify flashing at all transitions, and document installation before covering.