I’ve got a similar setup—north-facing valley, not super steep, and it’s a magnet for ice. I tried leaving the heat cables on all winter at first, but honestly, my electric bill jumped way more than I expected. Now I just plug them in when a storm’s coming or if we get that freeze/thaw mess. Works fine and saves cash. Insulation helped a bit, but didn’t solve the valley problem. For me, targeted heat cable use is the only thing that actually keeps the ice dams away.
Now I just plug them in when a storm’s coming or if we get that freeze/thaw mess. Works fine and saves cash.
That’s pretty much the sweet spot, in my book. I tried the “just add insulation” route too—blew in a ton in the attic, sealed every gap I could find, you name it. Helped with drafts, but those valleys still iced up like clockwork. Heat cables are basically my winter insurance. Running them 24/7 is a wallet killer though... I learned that lesson the hard way last January. Targeted use is the only thing that keeps me sane (and my gutters intact).
That’s exactly how I landed—insulation helped, but didn’t solve the ice dam headaches. I’ve got a couple of tricky roof angles too, and honestly, heat cables are the only thing that keeps water from sneaking in. I just wish they weren’t so expensive to run... but like you said, targeted use is a game changer. Sometimes you just have to mix and match solutions, depending on what winter throws at you.
“insulation helped, but didn’t solve the ice dam headaches. I’ve got a couple of tricky roof angles too, and honestly, heat cables are the only thing that keeps water from sneaking in.”
I hear you on the weird roof angles—some spots just never cooperate. Still, I gotta say, I’ve seen a lot of folks jump to heat cables before really dialing in the air sealing and attic venting. Insulation’s great, but if warm air’s leaking up through gaps, it’ll keep melting snow no matter how much you pile on top. Heat cables work, but they’re a band-aid if the root’s not fixed. Sometimes it’s worth checking for hidden leaks or blocked soffit vents before running up that electric bill every winter.
“Sometimes it’s worth checking for hidden leaks or blocked soffit vents before running up that electric bill every winter.”
Can confirm—found a squirrel-sized gap in my attic last year. Thought heat cables were my only option, but sealing that sucker and clearing out some insulation dams made a bigger difference than I expected. Those electric bills add up fast...
