Battling winter roof woes: heat cables vs. more insulation?

I hear you on the old houses - mine’s from the 1940s and there’s just no way to get modern insulation in without gutting half the place. I tried heat cables last winter and, honestly, they kept the worst ice off the north side. Not cheap to run, but cheaper than fixing water damage. Still wish I could just blow in more insulation, but there’s only so much you can do with these weird attic angles.

Yeah, I’m in the same boat - my place is a 1938 Cape and the attic’s like a maze. Tried blowing in cellulose a few years back, but there are just too many dead-end corners and weird slopes. Ended up with cold spots anyway. Heat cables aren’t perfect, but they saved my gutters from turning into icicle forests last January. Not thrilled about the electric bill, but it beats patching drywall every spring. Sometimes you just gotta pick your battles with these old houses...

I hear you on the old Cape quirks - those attics are a nightmare for insulation. I’ve seen a lot of folks in similar situations try to chase every cold spot and just end up frustrated. Heat cables aren’t cheap to run, but sometimes they’re the only real option when you’ve got those funky rooflines and hard-to-reach corners. Every so often, I’ll see someone try rigid foam panels cut to fit weird spaces, but honestly, it’s a ton of work for not much gain if access is tight. At the end of the day, keeping water out trumps a perfect electric bill in my book...

You nailed it - sometimes you just have to pick your battles with these old Capes. I’ve seen way too many folks dump cash into insulation only to find ice dams still forming because of those impossible corners. Heat cables aren’t ideal, but when you’re dealing with weird roof geometry and historic quirks, sometimes you just have to bite the bullet. Water damage is a nightmare compared to a higher electric bill, in my experience.

Battling Winter Roof Woes: Heat Cables vs. More Insulation?

Man, you’re speaking my language with these old Capes. I swear, every time I think I’ve seen the weirdest roof angle, another one pops up. I’ve got a couple of properties from the 1920s and 30s - one of them has a dormer that looks like it was designed by MC Escher after a few too many drinks. No matter how much insulation we added, there’s still that one spot where ice dams love to form. It’s like they’re mocking me.

I used to be all about “just beef up the insulation and air sealing,” but after a few winters and a couple of surprise ceiling stains (one right above a tenant’s bed - awkward conversation), I caved and put in heat cables. They’re not pretty, but neither is explaining water damage to an insurance adjuster who’s already suspicious about the age of your roof.

Honestly, I feel like there’s this myth that insulation alone will solve everything. Maybe if you have a nice modern roof with no weird valleys or additions tacked on over the years... but if your house has seen three generations of questionable DIY, sometimes you just have to pick the lesser evil.

The only thing that bugs me about heat cables is the electric bill jump in January and February. Anyone else notice that? I try to run them on timers or smart plugs, but if we get a sudden thaw and refreeze, it’s game over unless they’re on constantly. Still, I’d rather pay a bit more for electricity than deal with peeling paint and soggy drywall.

Has anyone actually managed to get rid of ice dams entirely on an old house without heat cables? Or is that just one of those unicorn scenarios? Sometimes I wonder if these roofs are just destined to keep us humble...