A group of natural building code experts and building pros submitted updates this summer to the US residential model codes that will make it cheaper and simpler to build with hemp-lime (“hempcrete”). An online fundraiser seeks to raise $12,000 to fund the updates to the 2027 International Residential Code (IRC) that will include ASTM tested 1-hour fire-resistance rated walls.

New 2024 US residential building codes for hemplime (“hempcrete”) will be explained by experts at a special low-cost in-person event for architects, builders and developers in San Marcos, TX in October.