The fire inspector failed our damper installation because the wall was framed too wide. How do I fix it without tearing out the wall?
4th YearAdvanced Problem SolvingRED · Stop / Verify
Fire dampers must remain completely clear to expand inside their rough wall openings during a fire event. If the framing crew packed the drywall or studs too tight against your damper sleeve, use a reciprocating saw with a long blade to carefully trim back the internal drywall layers surrounding the sleeve perimeter until you achieve the full code-specified \frac{1}{2}-inch expansion clearance gap. Re-mount the oversized retaining steel angles to completely cover the wider wall void.