IRC2024R702.7.1

Spray foam plastic insulation for moisture control with Class II and III vapor retarders.

Original source

Plain-English Explanation

Section R702.7.1 addresses spray foam plastic insulation for moisture control with class ii and iii vapor retarders.. This ensures exterior wall coverings are properly installed to protect your home from moisture, wind, and weather damage.

For the Contractor

Per IRC R702.7.1 (Spray foam plastic insulation for moisture control with Class II and III vapor retarders.): install WRB per manufacturer specs, verify flashing at all transitions, and document installation before covering.