@vicfroh
How can you make foundations with hemp? You can make composite, wood like material from hemp; but I'm not aware of anything that can be used structurally like 2x4 s. (Also not loving the AI illustration).
@vicfroh
Nothing structural can be hempcrete. For new builds, it it mostly timber framed (the structure), hempcrete insulated.
You can do hempcrete floors and ceilings (still need timber trusses). The mix is different for walls vs ceilings vs floors. Hempcrete roofs are heavy, so need more timber as structure. Better to use help batts, or other less heavy insulations.
There is a US company making hempwood (non structural), but that's a niche product ATM.