Advice: final plans for 38X20 house plans
I have been reading for many months on this site and finally going forward with our build in the coming weeks. I would like to run my plans by you guys for any tips and or advice.
Zone 6: Maine
Size: 38X20 two story (second is 3′ stem wall, no dormers)
Slab: We are planning on running two layers of ICF blocks on a footing insulated out by 3′-4′ foot under the footing for frost protection. Once the first story is built, we plan on pouring the slab internal of the building when its heated. Under slab will be 10mil barrier and 3″-4.5″ layers of comfortboard 80, or EPS if I can get it in time. Does the stem wall need to be tied in with rebar to the slab?
Walls: 2X6 construction, 24′ OC filled with Rockwool and seethed with Zip R-12. My concern is how close the R12 is to the limits of 35% external insulation, is this an issue?
Roof: unknown at the moment, possible, 2X12 rafters, 24″ OC with standing seam roofing.
Heatings: 4 zone mini splits, one in living, bath and each bedroom. With a wood stove as primary.
GBA Detail Library
A collection of one thousand construction details organized by climate and house part