TinnerFlow™Dampers, Fire/Smoke & Life Safety
Fire dampers, smoke dampers, FSDs, rated walls, retaining angles, sleeves, firestop, drop tests, and access rules.
Dampers, Fire/Smoke & Life Safety questions
How do I install a volume damper in a spin-in collar before attaching the flex?2nd Year · Stop / VerifyWhat is the difference between a dynamic and a static fire damper?2nd Year · Stop / VerifyHow do I install a retaining angle on a fire damper in a masonry wall?2nd Year · Stop / VerifyDoes the fire damper sleeve get attached to the wall or just the retaining angles?2nd Year · Stop / VerifyHow much expansion clearance do I need to leave around a fire damper sleeve?2nd Year · Stop / VerifyWhere is the exact placement for an access door next to a fire damper?2nd Year · Stop / VerifyCan I use regular duct sealant on the breakaway joints of a fire damper?2nd Year · Stop / VerifyHow do I install a smoke damper actuator so the electrician can reach it?2nd Year · Stop / VerifyWhat's the correct way to set a manual balancing damper quadrant so it doesn't rattle?2nd Year · Stop / VerifyDo motorized control dampers need to be installed perfectly level to work?2nd Year · Check firstHow do I frame an opening for a backdraft damper in a brick shaft?2nd Year · Stop / VerifyHow do I identify a fire-rated wall on the architectural drawings?2nd Year · Stop / VerifyHow do I identify a 2-hour vs. a 1-hour fire wall on an architectural life-safety plan?4th Year · Stop / VerifyHow do I prepare the ductwork for a city inspector's rough-in inspection?4th Year · Stop / VerifyWhat documentation does the Fire Marshal need when inspecting smoke dampers?4th Year · Stop / VerifyHow do I verify that our shop-fabricated fire damper sleeves meet UL listing requirements?4th Year · Stop / VerifyWhat should I check mechanically before the start-up tech powers on the RTU?4th Year · Stop / VerifyHow do I ensure all VAV damper blades are in the open position before system blow-down?4th Year · Stop / VerifyHow do I troubleshoot a fire damper that won't drop during a drop test?4th Year · Stop / VerifyThe fire inspector failed our damper installation because the wall was framed too wide. How do I fix it without tearing out the wall?4th Year · Stop / VerifyWhat should I do if another trade is about to bury a fire damper?2nd Year · Stop / VerifyHow do I verify fire/smoke damper orientation before cover?2nd Year · Stop / VerifyWhat if an FSD sleeve gap is packed with regular fiberglass?2nd Year · Stop / VerifyShould fire damper retaining angles be screwed to the wall framing?3rd Year · Stop / VerifyWhat if an FSD actuator hums but the blades do not move?3rd Year · Stop / VerifyWhat do I check when a branch reads zero CFM but dampers are open?3rd Year · Check firstCan multi-section fire/smoke dampers be joined with regular drywall screws?3rd Year · Stop / VerifyWhere should a fire damper sleeve sit in a rated wall opening?2nd Year · Check firstWhy is it a problem if a fire damper sleeve is squeezed by a tight wall opening?3rd Year · Check firstCan you fire-caulk raw duct directly through a rated drywall wall without a sleeve?3rd Year · Stop and Get DirectionCan a fire/smoke damper actuator burn out if line voltage is wired to the wrong motor?3rd Year · Check firstCan a fire/smoke damper be installed at a 45-degree angle in a rated wall?3rd Year · Stop and get directionWhy does a manual damper handle slip on a sloped travel piece?2nd Year · Standard CorrectionWhy can tight retaining angles cause a fire damper problem?3rd Year · Stop / get directionWhy should helpers check damper handle orientation before pre-assembly?2nd Year · Field ReferenceHow do I avoid the stripped-out damper quad nut?1st Year · Field Reference