Hemcrete® blocks are a range of hemp based blocks that combine carbon neutral properties with conventional block performance.

Factory produced, they are available in structural or non structural form and are the same size as conventional building blocks (215mm x 440mm). Unlike conventional blocks however, Hemcrete® blocks are zero carbon rated.

Hemcrete® – a bio-composite material that blends hemp with a special lime based binder to create a zero, or less than zero, carbon rating – has been available for several years as a cast or spray applied on site application. The blocks offer all of the sustainability benefits of Hemcrete® with the flexibility of having easy to lay, like-for-like blocks.

Hemp is a natural material that locks in carbon as it grows. Through its carefully measured use in the Hemcrete® block manufacturing process, the structural blocks have a zero carbon footprint.

This makes them the perfect sustainable masonry solution as part of a zero carbon house. The non-structural blocks have superior thermal performance and a negative carbon footprint. This means they can be used as a method of offsetting carbon from other areas of a building’s construction.

Hemcrete® structural blocks also offer better thermal insulation than conventional dense blocks. In addition, they have the ability to absorb and hold heat (thermal mass) during sunny periods when heat is not needed for internal living or work spaces. Instead, the heat is released when it is required, such as during overcast periods or at night, to provide substantial energy and cost savings.