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None of the above.Pitch? Support? Insulation? Open JBox? Which one?
Abandoned vent through the roof? Crappy gas piping?None of the above.
Abandoned vent through the roof?
It's all aggravating....They don't want to call a roofer...I get it...I hate it, but I have bigger fish to fry...
Finding that is sorta aggravating.
IMC 603.10 flex duct support