RenoAtlas

Exterior stairs and landings: frost movement

Prevent porch, landing or stairs from moving independently and binding doors, cracking finishes or distorting guards.

This tool is for triage and documentation; structural, fire, gas, refrigerant and electrical work remains subject to applicable rules and professionals.

VERT / GREEN

Document elevations and door clearance seasonally.

JAUNE / YELLOW

Footings, fill, drainage and house connection determine seasonal vs permanent movement.

ROUGE / RED

Landing pushing house/door, unstable guard or major settlement: structural/foundation diagnosis.

Indicative triage

Useful tools and data

What the professional checks

Official sources

Sources checked / sources vérifiées: 2026-08-22