GET EDUCATED!

A great place to start learning about hempcrete is the Supporting Documents for IRC provided by the USHBA: https://ushba.org/icc-supporting-documents/

There you can see videos and find articles on construction, ASTM E84 fire testing results, mechanical, moisture, and thermal performance. You can also take a look at the latest draft of the IRC Proposal itself. Respect and kudos to the team that put this draft together.