Hempcrete, alongside other hemp-based building materials, have been officially approved by the US Residential Building Code. This happened at a meeting by the International Code Council (ICC) which was held in Louisville, KY last week.
During the meeting, the public comment period for hempcrete construction was closed and an appendix BA for hempcrete was created and will be published in the 2023 International Residential Code (IRC). The IRC regulates all residential codes in all but one state, Wisconsin.
Hempcrete is made from hemp stalks and lime binders. It offers several benefits as a building material. It's strong, durable, and fire-resistant. In addition, hemp sequesters carbon and makes hempcrete an excellent zero-carbon building material that minimizes the carbon footprint. With this new provision, building departments will be free to review building plans that involve the use of hempcrete. This will help in moving the hemp industry to the mainstream.