Sustainability continues to be the issue of our generation and a critical factor in the design, specification and construction of buildings. With the UK signing up to the Kyoto Agreement to tackle the greenhouse effect, one of the key sustainability drives now focuses on the reduction of CO2 emissions.

In the UK, the construction and use of buildings accounts for over 50% of the carbon dioxide produced. Studies have shown that up to 200kg of CO2 is emitted in the production of each square metre of walling for houses alone – equating to 40 tonnes for the walls of a typical house.

To significantly reduce this figure, Lime Technology has launched Tradical® Hemcrete®, a new product innovation of cast in situ hemp-lime walling.

Created in partnership with Lhoist UK Castle Cement and Hemcore, three of the world’s leading authorities on lime and hemp based products, Tradical® Hemcrete®, often generically known as Hempcrete, can actually reverse the damaging effects of greenhouse gases by locking up harmful CO2 emissions within wall construction. 

It comprises a unique blend of specially prepared hemp shiv (Tradical® HF) and a special lime based binder (Tradical® HB); which together form a bio-composite building material. The hemp, which forms the key element in these products, is grown and havested in the UK, as illustrated.

Helping to reverse the damaging effects of greenhouse gases, Tradical® Hemcrete® locks up around 110kg of CO2 per m³ of wall and provides one of the best value materials for low impact, sustainable and commercially viable construction.

Produced mainly from renewable sources, Tradical® Hemcrete® is mixed on site for fast track construction and delivers high levels of insulation, airtightness and vapour permeability. It is spray applied on site using a shuttering system to create the walls.

Cast in situ walling  - please scroll down this page for further information 

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