brycenesbitt
Senior Member
- Location
- United States
I know how to buy a gasketed air sealed junction box.
I know how to buy a 2 hour fire rated (fiber plastic) junction box, and seal openings with Intumescent caulk.
Is there a source for gasketed air sealed 2 hour fire rated 3" junction boxes?
This is for an unvented cathedral ceiling where air leaks would cause moisture buildup,
that also wants to be fire rated. The other alternative here is a pancake box, but that adds
depth.
I know how to buy a 2 hour fire rated (fiber plastic) junction box, and seal openings with Intumescent caulk.
Is there a source for gasketed air sealed 2 hour fire rated 3" junction boxes?
This is for an unvented cathedral ceiling where air leaks would cause moisture buildup,
that also wants to be fire rated. The other alternative here is a pancake box, but that adds
depth.