Also, many of the larger firestopping manufacturers have highly qualified technical personnel who can explain the subtle nuances of firestopping, as well as skilled field personnel who can conduct more specific training. The first method is a bit contentious among insulation contractors, manufacturers, and engineers. Skip to main content. Today, a search would yield total systems for HVAC duct penetrations through walls.
Follow Us On Twitter http: They can simply be sealed with a firestop caulk, such as an all-purpose intumescent firestop sealant. Many additional designs are now available to cover various other permutations where steel ducts are insulated with light-density glass fiber duct wrap. Keep Me Signed In.
The next step is to install firestop sealant to the appropriate depth. There are many other concerns that need to be addressed when it comes to ducts containing dampers. Round ducts are stronger, due to their geometry, and will not collapse inward. It is to install the firestopping materials into the space mechanical duct penetration exterior wall details the insulated steel duct and the periphery of the opening in the normal fashion, followed by installation of the steel angles directly to the steel duct.
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