Resources for Design, builders, Engineers and Code Officials

In 2024, USHBA removed barriers for residential home projects when a Hemp-Lime (Hempcrete) Appendix BL was published in the 2024 US Model Residential Codes.

Appendix BL will allow use of hemp-lime in buildings up to two stories in regions of low seismic risk prescriptively without engineering. Regions of high risk and taller buildings still fall under the code, but will require an engineered design.

The IRC is a model code for one- and two-family dwellings and townhouses, and is the basis for the residential code in 48 states (except Wisconsin and Arkansas

Healthy Materials Lab | Open Source Details: Designing with Hemp + Lime