Garage slab to house: slope, threshold, water and salts
The slab-door-wall junction must keep meltwater, wash water and salts away from framing and living space without an improvised threshold.
Triage only — not a design.
VERT / GREEN · JAUNE / YELLOW · ROUGE / RED
What the professional checks
The professional checks slope, drainage, threshold elevation, material condition, salts/chlorides, wall separation and local garage requirements.
Official sources
Checked: 2026-08-24
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