Ducts, dampers & transits · Duct concept
What makes a fire-resisting duct system different from ordinary ductwork?
Short answer
A fire-resisting duct system is a tested or assessed construction in which duct, protection, joints, supports, access and penetrations work together. Adding insulation to ordinary ductwork does not create that system.
What to do next
Send the tag, the schedule reference, the drawings you have and photographs of the actual condition. We will tell you what they show, what they cannot, and what else is needed before anyone gives a conclusion.
General information only. A conclusion about a specific condition requires the actual construction, the evidence behind it and the site condition to be reviewed.