well it just has to stop significant buildup over multiple days right? IDK, seems pretty effective here in tahoe where ive seen it applied on parts of peoples houses
Do people in Tahoe heat-tape their whole roof or just the edge where ice dams would otherwise form? I've only ever seen the latter, and even doing that will be noticeable on your power bill.
Yeah it’s usually just 3-6ft on the edges of the roof. But this whole roof is tiny. Covering a 12x12 roof would be much less than one edge run on a big house . Also they only turn on when there’s actual snow falling so doesn’t use as much power as you might think
also idk, tons of people up here have regular sheds for various purposes and they seem to survive just fine