Hempcrete is a bio-based composite made from hemp shiv and a lime-based binder. It is lightweight, vapour permeable and particularly attractive for insulation and wall infill applications.
Its environmental appeal comes from renewable feedstock, low embodied impact and the ability of hemp to absorb carbon while growing. The material can also contribute to moisture regulation and comfortable internal conditions.
It is not a direct structural replacement for reinforced concrete, but as part of a well-designed wall system it offers a compelling route toward lower-impact construction.