Why it matters
Hempcrete is mixed on-site from hemp hurds (the woody inner core of the stem), hydraulic lime, and water. It is poured between formwork as an infill within a load-bearing frame. The cured material is light, insulating, breathable, and locks in atmospheric carbon over its lifecycle.
In practice
In Europe, hempcrete has been used in low-carbon construction for decades. US adoption is rising but limited by code recognition and processed-hurd supply. Energy performance and indoor air quality are the main selling points.
Common confusion
Hempcrete is not load-bearing — it is an infill material that requires a separate structural frame.
This glossary entry is editorial content reviewed against primary sources. It is not medical advice. See our Editorial Policy.
