Sounds like a good price installed.
Will you put insulation under the slab, wish I would have. I know around here the guys who do radiant in the floor use insulation. I used heavy gauge poly under mine, just to keep the moisture down.
Mine slab is only 4" thick, except for the 3'x4' pads under the lift, that's 8" and has rebar in it. The rest is 6 sack with commercial fiber (longer than residential). They also used a power trowel on it and finished it to a very smooth finish, so smooth a squeegee works great on it, little slippery when wet. I sprayed it all with a concrete hardener, it holds the water in the concrete much longer. Which really pissed off the guy who was cutting it because he had to wait much longer than he thought/planned for to cut it, I'm sure the poly under it helped hold the water as well.
Will you put any drains in.
Wish I would have put water under to the main bay before the pour.
What happens to the condensation on the steel in that 1" gap?
I've installed enough insulation not to want to anytime soon, but I'll be doing more soon enough lol.
I only have equivalent to one of these stacks left, and most of that will be used to finish the main bay south wall and the rest of the east wall. The east wall gets 1.5" between the girts, already have r-19 between the studs. The south wall has 1.5 between the girts, I'll add another 1.75" and then r-13. Hope I have enough in there.
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This is the bay door I'm building. Just got the last of the metal frame for the sides/ends tonight, hope to have it hung by two weekends from now. Should be starting to warm up by then lol.
4 inch thick metal roofing panels, they say they are R-32
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