IECC2021R402.1.2

Insulation and Fenestration (NM Amendments)

Original source

Plain-English Explanation

Section R402.1.2 covers insulation and fenestration (nm amendments). Foundation requirements ensure your home has a stable, code-compliant base.

For the Contractor

Per IRC R402.1.2 (Insulation and Fenestration (NM Amendments)): verify footing dimensions, reinforcement, and depth meet local frost depth requirements.