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I did try the heat tape before I did the insulation and that had no effect on the freezing vent pipe, the insulation keeps the gas warm enough that the warm sewer gas does not freeze in most...

I did go in the attic and wrapped insulation around the vent tube and this year I also added blown cellulose insulation in the attic and blew all the cracks full around the roof vent. I can say we...

I will try the attic fix, but I don't think that will solve the entire issue, and may already be done as I have thought of that, but not done that yet.
On the special roof vent to prevent ice...

I live in Northern WI and have problems with my roof vent freezing and causing sewer gas to back up into my downstairs basement. My one 3" sewer vent looks the same as everyone else's but my vent...