What is HempCrete?
Picture your next home. Imagine an angular yet warm building that seems to fit perfectly into the environment in which it resides. Not only is it aesthetically beautiful, but it created less waste and pollution in its construction than any other home in the neighborhood. Imagine that this home is carbon neutral and incredibly efficient.
With Hempcrete this dream could be a reality.
Hempcrete is a concrete-esque building material produced by mixing hemp shives and lime. Although Hempcrete has only about 1/20th of the compression strength as residential grade concrete,it can be used as a backfill and insulation material with wood or steel frame structures.
This use shows evidence of having serious advantages over traditional building materials.
Hempcrete has some serious cost-saving properties compared with traditional materials.
Hempcrete has a high degree of thermal insulation, and it is fire and termite resistant. Hempcrete walls are breathable which regulates humidity in the structure; while it’s insulative properties regulate temperature. Some companies have suggested that under the right
circumstances the use of hempcrete could eliminate the need for a heating and cooling system entirely.
Other interesting properties include the fact that it scrubs carbon out of the atmosphere over decades as it cures. It has been suggested that Hempcrete can literally scrub between 130kg and165 kg of CO2 per cubic meter. This is due to the fact that it is a plant based
product, mixing it with lime allows for the carbon reabsortion after it is processed.
These factors combined make Hempcrete a carbon-negative material. Carbon negative materials are defined by permanently reducing the amount of the greenhouse gas carbon dioxide in the atmosphere. With Hempcrete you can build a house and fight global warming all at once.
Here is a list of the benefits of Hempcrete according to hemp-technologies.com
- High thermal insulation
- 50% – 70% energy savings
- Fire resistant
- Termite resistant
- Breathable walls
- Design flexibility
- Prevents mould
- CO2 sequestration
- Negative carbon footprint
- Healthy living environment
- Inherently Airtight
- High acoustic performance
- No waste
- No Dry Rot
- Natural Substrates for Plasters and Renders
- Low Air Infiltration
- no landfill waste
Hempcrete is currently being used to build homes and commercial structures in the United States and Europe. For more on hempcrete check out these websites: