BayPointArchitect
Sawhorse
A mechanical engineer just sent me information from the manufacturer of a fire damper that illustrates a duct penetration through a fire-rated wall.
The literature states that the fire damper has been tested and approved as illustrated. The drawings illustrate the damper located within the duct and 16 inches from the wall.
That is contrary to how I have understood and enforced fire dampers while I have always thought that they should be located in line with the fire-rated wall.
In this particular case, the mechanical engineer is wanting to locate the damper 3 inches out of plane away from the wall. Perhaps to make easier access to reset the damper in the event it is tripped.
Thanks for your insight.
ICC Certified Plan Reviewer
NFPA Certified Fire Plan Examiner
The literature states that the fire damper has been tested and approved as illustrated. The drawings illustrate the damper located within the duct and 16 inches from the wall.
That is contrary to how I have understood and enforced fire dampers while I have always thought that they should be located in line with the fire-rated wall.
In this particular case, the mechanical engineer is wanting to locate the damper 3 inches out of plane away from the wall. Perhaps to make easier access to reset the damper in the event it is tripped.
Thanks for your insight.
ICC Certified Plan Reviewer
NFPA Certified Fire Plan Examiner