Saint-Astier® ISOCANNA Hemp Hurd:

Saint-Astier® ISOCANNA Hemp Hurd is a natural building material made from the woody core of industrial hemp stalks, processed into lightweight, uniform pieces designed specifically for use in hemp-lime (hempcrete) construction systems. Sourced and refined under the Saint-Astier® brand, it is engineered to work as the aggregate component in insulating infill mixes when combined with lime binders. The hurd provides the structural “skeleton” of hempcrete, creating a breathable, bio-based composite that can be cast or sprayed into walls, floors, and roofs. Its consistency, cleanliness, and controlled grading make it suitable for both new builds and retrofit projects where sustainable, low-impact materials are prioritized.

The advantages of using Saint-Astier® Isocanna Hempcrete Hurd lie primarily in its performance as part of a high-efficiency, eco-conscious building system. Hempcrete made with quality hurd offers excellent thermal insulation, helping regulate indoor temperatures naturally while reducing reliance on mechanical heating and cooling. It is also highly breathable, allowing moisture to move through walls and reducing the risk of mold and trapped humidity. The material is carbon-negative in many applications, as hemp absorbs CO₂ during growth and lime-based binders continue to carbonate over time. Additionally, it provides strong acoustic insulation, is resistant to pests and fire compared to conventional organic materials, and contributes to healthier indoor air quality by avoiding synthetic additives.