W
Woooody
Guest
We just installed a manufactured s.s. insulated chimney in our house which has a cathedral roof. I didn't use the manufactured "box" to suspend the chimney from the rafters. It is supported in the basement below on a wall mounted base support inside the building.
My question is about insulating the hole where the chimney exits the cathedral roof\:.
There is the normal galvanized tin fire block and radiation shield installed where the chimney goes through floors and cathedral roof. Everything is fitted according to regulation clearances. Can I install (or is it advisable or legal to install) rock wool directly against the radiation shield and against the chimney itself where it exits the ceiling and roof?
The reason for this is that I want to do a good job of insulating the chimney at the exit hole. I am told unofficially that rock wool insulation will not burn so there is no problem with doing what I propose. I did not buy the factory produced item that is used with cathedral ceilings as the chimney is not suspended from the rafters, as explained above.
My question is about insulating the hole where the chimney exits the cathedral roof\:.
There is the normal galvanized tin fire block and radiation shield installed where the chimney goes through floors and cathedral roof. Everything is fitted according to regulation clearances. Can I install (or is it advisable or legal to install) rock wool directly against the radiation shield and against the chimney itself where it exits the ceiling and roof?
The reason for this is that I want to do a good job of insulating the chimney at the exit hole. I am told unofficially that rock wool insulation will not burn so there is no problem with doing what I propose. I did not buy the factory produced item that is used with cathedral ceilings as the chimney is not suspended from the rafters, as explained above.