Ducts and fire separations: dampers, access and continuity
When a duct crosses a fire separation, do not treat the opening as an ordinary penetration: damper need, type and access depend on the assembly and applicable code.
Decision triage
VERT / GREEN · JAUNE / YELLOW · ROUGE / RED
What the professional checks
The specialist checks fire-resistance rating, duct/opening type, damper requirement or exception, listing, position, retention, access and compatible fire stopping.
Official sources
Sources checked: 2026-08-24
Related path
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