Quote:
Originally Posted by A930Rocket
You may need to talk to your building department or Fire Dept about the non-combustion requirement and clarify. The USG site has a 4 hour wall. Non-combustible would have to be steel, concrete or masonry I would think.
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Right. Even though you and a few others here are contractors, this is not the place to ask.
FWIW, 3M makes a foil type product and there are cement boards rated for fireplace construction. Apparently one can still obtain products like Transite and it can be fabricated in a closed environment using a wet cutting process like water jetting.
Good luck finding more info on that, but I had some that I found awhile back and used it behind stainless steel over plaster to surround my vintage Wolf range. I just scored it, misted it and snapped the cut.
No inspectors were involved. It was much easier to build and remodel in my days as a contractor and I did a few commercial kitchens. Tough work meeting codes for building and health codes even then (40 years ago). I wouldn't step foot in that today.