Friend of mine has a 16 inch horizontal run of single wall pipe to the thimble. The pipe is 15 inch's from exposed floor joists. Other than going to double wall pipe would 5/8" durock on the ceiling solve this issue? Thanks.
Horizontal clearance problem.
- Thread starter Butcher
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I don't think double-wall would do it either ("solve this issue" to code,) especially when the combustible is above a horizontal pipe. I thought vertical dw needed 16" but I could be wrong. If he's not bringing it up to code, maybe the Durock with spacers between it and the joists?
OK, the 16/18" ceiling is for single wall.
Butcher, I think the NFPA code 211 has a section on clearance reduction.
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