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indyhomer

Design questions

Brian 's
8 years ago

Project description: ZIP 46037, Zone 5. Single family residential.

Floorplan split story 3200, the "first story": 1178 sq ft with full
basement underneath and 449 sq ft recessed at -40" on slab poured on
compacted soil. House siding will be either cement or vinyl with the
bottom 2ft on the [front only] is a stone veneer.

- Wall Options that I would like to explore:
1) add 1/2" CDX sheathing everywhere +1.5" xps on exterior.
2) add stapled thermoply structural sheathing+ two inches of xps
3) (add 1/2 sheathing corners 1.5 XPS ) + 2" XPS everywhere else.

Not sure if I need moisture barrier, thermoply can act as one. [Building
department is nice and cooperative]. Current foundation design W:8"ft
H:96" does not account for insulation.
- Should I add 2" to all dimensions?


It was designed for 40' trusses
with 12" overhang.
- Should I add 2" XPS under the slab for 449 sq ft that are recessed
40". I expect Slab to grade to be 30".


Thank you for your help.


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