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
What is systems thinking and how could it help infrastructure professionals deliver better results?
Read about the newly-completed fourth tallest building in the world.
Read Designing Buildings Wiki's review of Imagine Moscow - an exhibition looking at the utopian projects of the early-USSR.
What are the various different types of alternative dispute resolution for construction?
3-point plan released for how government can safeguard infrastructure post-Brexit.
Thomas Heatherwick's Pier 55 is halted due to judge ruling on wildlife protection.
Have a look at our article explaining contract claims in construction.
Studio Libeskind reveal designs for a new skyscraper with a living facade in Toulouse.
A mega-dome, a cenotaph for Newton, a bubble over New York - some of the most famous projects that were never realised.
One of the oldest and finest examples of Byzantine and Islamic architecture, the Dome of the Rock.
Have a look at our article explaining thermal comfort in buildings.