Canvas is decent, but honestly, I've had better luck with rigid foam insulation boards. They're smooth, reusable, and leave a clean finish—no wrinkles or fuzz to worry about. Bit pricier upfront, but worth it for the hassle saved later...
Rigid foam boards are handy, sure, but they're not always the silver bullet. I've seen them warp slightly under certain conditions—especially if you're dealing with temperature swings or moisture. Canvas might be fussier, but at least it breathes and adapts a bit better to changing conditions. Not knocking your method, just saying foam isn't always as foolproof as it seems...depends a lot on your specific setup and environment.
- Had foam boards warp on me once—wasn't pretty.
- Canvas seems pricier tho, especially if you're watching the budget...
- Maybe a combo approach could work? Foam with some breathable barrier?
- DIY's always a balancing act, isn't it...
Had my fair share of foam board drama too—warping can be a nightmare, especially if moisture sneaks in. Canvas does hit the wallet harder upfront, but honestly, sometimes spending a bit more initially saves headaches (and money) down the road. That said, your combo idea isn't bad at all... maybe foam with something like Tyvek or a breathable house wrap could keep things stable without breaking the bank? A buddy of mine went that route on his shed foundation, and it's held up surprisingly well through some pretty harsh weather. DIY is definitely about finding that sweet spot between budget and durability—sometimes a bit of creativity goes further than just throwing money at it.
I've seen folks try the foam and Tyvek combo before, and while it can work, I'd still be cautious about relying on it long-term. Tyvek's breathable, sure, but it's not magic—moisture can still find its way in eventually. Personally, I'd lean toward spending a bit more upfront for peace of mind. But hey, DIY is all about experimenting and learning as you go... sounds like you're on the right track figuring out what works best for your situation.
