What is Hempcrete?
This page is intended to help guide you to find the materials you need to build with hemp, and answer any basic questions you have
The Quality of a Hempcrete mix is directly correlated to the Quality of the Raw Materials used in the mix. When building with hemp, ensure that you use the highest quality raw materials possible. Excessive dust in your hemp aggregate can cause wall failures in the long term. Our purpose is to ensure a reliable supply of suitable hemp hurds for construction for all interested builders. All of our hemp hurds conform to the highest standards of professional construction, as established by the Construire en Chancre (CenC) label. The CenC certificate was developed in the birthplace of hemp concretes to create a professional and standardized level of Quality for hempshives for hempcretes. All of our hemp hurds comply with the standards set by the CenC label, carrying its label.
- -Controlled granulometry (Average Particle Size: 1/4"-1/2")
- -Minimal dust level (Rigorously Mechanically Dedusted)
- -Optimal moisture content
- -Constant Bulk Density.
- - Light Color (Synonymous with no mold)
Order Materials for Your Project
Find a Distributor list below, or order online and request a shipping quote.
How to Make Hempcrete from our Hemp Hurds
To make hempcrete, Chanvra Core hemp hurds (the aggregate) are mixed with a binder. Most hempcretes utilize a lime binder, and Chanvra Core is validated with most lime-based binders in terms of performance required by the French Hemp Building Professional Rules. Our favorite binders are listed below, which include our very favorite: raw hydrated clay. Though this natural binder material requires a greater amount of work and attention to the drying process- and is less developed than the Hemp Lime method- it is a cheaper and more natural option that is well worth experimenting with! Whichever binder you choose, as long as you follow the instructions of the manufacturer, you can't go wrong with choosing Chanvra Core as your aggregate.
Pure Hydrated Lime
- Reduces consumption of the basic binder from 60 to 25 kg per batch
- Produces a lower density material and weight reduction to 240 kg/m3
- A more porous product and therefore an improvement of thermal effect and humidity regulation
Raw Hydrated Clay
Some of the most ancient building techniques utilized just hemp fiber stalks and clay. Today, builders have the historically unique ability to make a modern hempcrete recipe utilizing just raw hemp hurds and hydrated clay.
How to Build with Hemp & Clay