- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 05 Mar 2017
This article needs more work. To help develop this article, click 'Edit this article' above
A typical brick house can be responsible for 50 tonnes of CO2 emissions in its construction however, it is claimed that the same house can be built for 40% less CO2 by using Tradical Hemcrete. This is because 110kg of CO2 equivalent is captured in every cubic metre of Tradical Hemcrete wall mix, making it carbon negative. It also has a very low energy cost in use, is recyclable and is produced in the UK.
It can then be used for the construction of walls, in the renovation of old buildings, to form in-fill panels for historic timber frames, or as an insulating plaster or render system for the thermal upgrading of masonry buildings.
Family homes have been constructed that include enough Tradical Hemcrete for them to achieve level 4 in the Code for Sustainable Homes. Level 4 means that the house's emissions are 25% lower than 'normal'.
The thickness of Tradical Hemcrete has so far been limited to 450mm due to difficulties with drying times, and even at those thicknesses, drying times can be more than 4 weeks. This drying issue can impact on the sustainable credentials of the product as large industrial fans are sometimes used to dry panels.
 Related articles on Designing Buildings Wiki
- Earth building.
- Hemp lime construction: A guide to building with hemp lime composites.
- Lime mortar.
 External references
- BRE report on the Haverhill Hemp Houses.
- Lhoist UK (2012) frequently asked questions, Available at: http://www.lhoist.co.uk/tradical/faq-material-selection.html (Accessed: 01/12/12).
- Lime Technology (2012) Projects (Accessed: 01/12/12).
- Department for communities and local government (2012) Code for sustainable homes, Available at: http://www.planningportal.gov.uk/buildingregulations/greenerbuildings/sustainablehomes (Accessed: 01/12/12).
Featured articles and news
A tapestry of continued use, new use, preservation, dismantlement, dereliction and abandonment.
Whole-life costs consider all costs associated with the life of a building, from inception to disposal. Find out more here.
Reports emerge of injuries caused by Apple employees colliding with the campus' glazed walls.
The winners of NIC's ideas competition on transforming the Cambridge to Oxford arc discuss their concept.
Create new habitats and improve air quality and wellbeing.
New report provides 12 key actions which could close the structural talent gap in the construction industry.
These can be used to find out whether a proposed development is likely to be approved. Read more here.
Studying a built environment degree? Check out our helpful student resources section.
New BRE research paper explores how blockchain technology can benefit the built environment industry.
Timber is a natural carbon sink, but it must not end up in landfill at the end of its useful life.