Hempcrete by EcoBouwSalland is a sustainable, bio-based building material designed for environmentally responsible construction. Made from hemp shiv, a lime-based binder, and water, it offers excellent thermal insulation, moisture regulation, and breathability while contributing to a lower carbon footprint.

Key Technical Specifications

  • Density: ~275 kg/m³, ensuring a lightweight yet durable structure.
  • Thermal Conductivity (λ): 0.06 W/m·K, providing high insulation performance.
  • Compressive Strength: ~0.3 MPa, suitable as an insulating infill material in load-bearing frames.
  • Flexural Strength: 0.3-0.4 N/mm², offering flexibility to adapt to structural movements.
  • Fire Resistance: Rated at 1 hour (BS EN 1365-1:1999), enhancing building safety.
  • Carbon Sequestration: Captures approximately 130 kg CO₂/m³, making it a carbon-negative material.


Material Composition

  • Hemp Shiv: The woody core of the hemp plant, sourced sustainably.
  • Lime-Based Binder: Provides durability, fire resistance, and natural pest prevention.
  • Water: Ensures proper bonding and curing of the material.


Performance & Benefits

  • Energy Efficiency: Reduces heating and cooling demands through superior insulation.
  • Breathability & Moisture Regulation: Prevents mold and condensation by allowing walls to regulate humidity.
  • Eco-Friendly & Carbon-Negative: Absorbs more CO₂ than it emits, contributing to sustainable construction.
  • Lightweight & Flexible: Eases handling and adapts to structural shifts, reducing cracks.
  • Healthy Indoor Climate: Free from synthetic pollutants, promoting air quality and occupant well-being.


Applications

  • New Construction: Used in residential, commercial, and sustainable housing projects.
  • Restoration & Renovation: Ideal for upgrading historic buildings with modern insulation.
  • Prefabricated Panels: Available in pre-made blocks and panels for efficient, fast-track construction.


Company Commitment
EcoBouwSalland, based in Heino, Netherlands, specializes in sustainable building solutions and natural materials. Since 2017, the company has been at the forefront of eco-friendly construction, integrating hempcrete into energy-efficient and durable projects. Their approach prioritizes local sourcing, circular design, and biophilic principles, ensuring a minimal environmental footprint while maximizing performance.

Hackney Hemp House

This project is an extension to a Victorian terraced house in Hackney, London. We collaborated with Structure Workshop on the design, which features a timber primary structure infilled with hemp panels - a carbon-positive material.

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Voorst Town Hall

The municipality of Voorst sought to replace its outdated town hall with a more sustainable and functional civic building. Rather than demolishing the existing structure, built in the early 1980s, De Twee Snoeken opted to retain its concrete framework and reconstruct the facility using sustainable principles. The renovation involved stripping the building down to its structural shell and incorp...

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Used in these projects