@p_j_goetz, this does indeed help. Thanks for the detailed info. I suspect you've helped many more than just me here.
Our various penetrations through the joists are less than 6" from the bottom. I'm more confident I can get two layers of rigid foam up tight against the subfloor (no vapor...
And....it all needs to be essentially an airtight capsule, otherwise the cooling unit will be constantly dehumidifying, and generating buckets of water.
I may be confused. We have all 4 walls framed, no concrete walls (but a concrete floor). The vapor barrier should go outside all of the insulation, on the "warm" side. So that's outside the walls. And for the ceiling, up against the subfloor above, either only sealing off that subfloor or, as I...
You can't rent them here, but you can buy kits that get shipped. I worry about the mess and the chemicals.
I'm realizing, too, that I'll have to install a lot of blocking between the joists where they run through into the garage. And that, too, will need a vapor barrier. At least I have easy...
Thanks for the reply.
- Vapor barrier and insulation. Foam board is a possibility, probably easier than stapling up plastic and then sealing all the seams with tape.
- Correct, 14" joists. They're common here, Boise Cascade I-joists. And there's plenty of LVL and steel holding those joists!
-...
Greetings, all.
We're building a new house and have space dedicated for a storage cellar. It's under a conventionally-framed floor, with 14" deep joists. I know we need to put a vapor barrier on the warm side, so that means along the underside of the floor above. How the heck do you do that...