FBC2023R905.3.3.1

Slope and underlayment requirements.

Original source

Plain-English Explanation

Section R905.3.3.1 covers slope and underlayment requirements.. This requirement ensures your roof assembly is installed correctly and meets minimum performance standards for your jurisdiction. Verify specific requirements with your local building department.

For the Contractor

Per IRC R905.3.3.1 (Slope and underlayment requirements.): follow manufacturer installation instructions and verify compliance with local amendments. Document installation with photos for inspection readiness.