Need some #diy insulation help. I'm in the northeast. We have an enclosed porch built on an old wooden deck. I want to insulate it enough that we can safely run water through it.
I'm thinking of installing foam board insulation either under the deck or on top of it. I'm not sure how being exposed to the outside like that will affect it, or if there's a better option.
Anyone with relevant experience or knowledge that can point me in the right direction?