Tradical® Hemcrete® is a carbon negative, bio-composite building material made of hemp and a lime based binder. Hemcrete® has excellent thermal properties and is ideal for creating comfortable buildings which meet the higher levels of the Code for Sustainable Homes and BREEAM standards.
Hemcrete® is a proven, robust, highly breathable and sustainable construction product, that can be cast or sprayed.
The hemp (Tradical® HF) and the lime binder (Tradical® HB) are mixed together to become Tradical® Hemcrete® which is used for the construction of walls but can also be used in roofs to create buildings with excellent thermal, breathable and acoustic properties, creating healthy living and working environments.
Hemcrete® is a lightweight material that achieves a negative carbon footprint as it locks up approximately 130kg of CO² per m³ of wall and when protected by Limetec lime renders and plasters, provides one of the best value walling systems for high thermal mass, well insulated, breathable, sustainable and commercially viable construction.
Hemcrete® is not a load bearing material. It is normally cast or sprayed around a timber or steel frame and relies on the frame to carry the vertical
loads of the roof and upper floors down to the ground. The lightweight nature of Hemcrete® means that lightweight timber framing and foundation
structures may be considered to reduce costs and construction time. Hemcrete® provides some racking strength for the frame and as a result the
frame may not need additional bracing.
The high thermal performance and air-tightness of the Hemcrete® means that single skin structures are sufficient and do not require additional
insulation layers, This avoids the need for cavity wall construction. The ability of the walls to breathe and to store heat allows for passive self regulation
of the temperature and humidity within the building, often reducing the need for heating and air conditioning.
For more information please click here to download the information pack (zip file, 8.8mB)