Hempcrete is a biocomposite material made from the woody core of hemp stalks, known as hemp shiv. Mixed with a binder, typically lime powder, and water, hempcrete becomes a versatile and durable material.
Its proportions of hemp and lime can vary, depending on its intended use, making it suitable for internal walls, insulation, roofs, attic spaces, and flooring screeds.
The recent construction of a 12-story hotel primarily using hempcrete has drawn attention to its potential in the building industry.
Hemp's carbon-negative properties extend beyond its growth phase. Hempcrete's excellent insulation capabilities play a crucial role in reducing carbon dioxide pollution.
The air pockets and microscopic spaces within hempcrete effectively store heat, and once the lime binder sets, heat is retained within the material itself.
This slow heat release maintains a constant indoor temperature, reducing the need for excessive heating and cooling. As a result, energy bills and carbon emissions are significantly reduced.
Corey Hughes, CEO of Construction Grade HEMP, highlights hemp's energy efficiency, stating that it can bring down energy bills by up to 15% in a home.
Hemp is very energy efficient material. It would usually bring the energy bill down 15% in the home. So you could turn on your heat on Monday and you won’t need to turn it on until Thursday. Turn on your AC on Monday and not again until Tuesday night.- Corey Hughes, CEO of Construction Grade HEMP
With hempcrete's ability to retain heat, occupants enjoy a comfortable living environment while significantly lowering their carbon footprint.
As architects and builders continue to seek sustainable solutions, hempcrete emerges as a game-changing building material.
Its carbon-negative nature, along with its exceptional insulation properties, makes it a viable and eco-friendly alternative to traditional construction materials.
Embracing hempcrete paves the way for a greener and more sustainable future in the building industry.