SEH 2 Structural Engineering

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David Mar

comments for your consideration:

 

Walls -

1. Wall framing is stronger than needed. Consider 2x4 @ 24”.
2. The 4’ module gives double studs at 48”. Consider a bigger module based on wall segments – corner to window, window to window. Consider what can fit on a truck, or framed flat and tilted up.
3. Explore developing a window module. King stud to king stud, with header and sills and windows. Make a load-bearing and non-load-bearing version.
4. Explore rigid insulation on stud framing.
   1. The window module could be with 2x6 framing and align with 2x4 walls with 2” rigid insulation.
5. Explore the Spider Crane to move bigger panels.
6. Explore Sip panels for walls.
   1. Look at factory built, and DIY
   2. Look at DIY versions using 4’ of OSB to avoid most of the studs.
7. Keep plumbing and wiring out of exterior walls.
8. Run wiring in baseboard.
9. Run wiring switches in window modules only.

 

Floors –

1. Explore 12” TJI framing @ 24” for 16’ spans.
2. Explore floor cassettes – 3 12” TJI joists at 24” with plywood.
   1. Place cassettes with 24” gaps to keep from doubling joists. Add 24” plywood infill between cassettes.

 

Roofs-

1. Avoid flat roofs and consider robustness and reliability of the water proofing system to be of great importance.
2. Explore sheds with overhangs.
3. Explore SIP roofs. These may work well as sheds, with overhangs, and spider cranes for installation.
4. Explore metal roofs with solar panel clips.

 

Foundations-

1. Explore steel fiber reinforcement for the slab on grade.
   1. These are added by the ready mix company and delivered in the concrete.
2. Explore fabricating an aluminum or steel forming system to better control dimensional accuracy.

 

Let me know if you if you’d like to discuss any of these points.

 

David

 

David Mar, SE Partner

https://www.marstructuraldesign.com/