Why It's the Future of Building

In a world where sustainability is no longer optional but essential, HempLime—also known as hempcrete—is emerging as a revolutionary building material. Combining the woody core of the hemp plant (shiv) with a natural lime-based binder, this lightweight, breathable, and 100% natural material is transforming the way we think about construction.

 What Is HempLime?

HempLime is a bio-composite made from:

  • Hemp shiv (the inner woody part of the hemp stalk)
  • Lime-based binder such as hydrated lime with mineral additives or NHL 5 (Natural Hydraulic Lime) 
  • Water

When mixed together, this blend creates a natural insulating material that’s cast in place, often within formwork to build monolithic walls. The result? Solid, breathable, and carbon-storing walls that regulate indoor temperature and humidity.

Why HempLime is the Future

✅ Carbon negative: The lime binder continues to absorb CO₂ as it cures. This means your home is storing carbon, not releasing it.

✅ Healthy Indoor Air: HempLime walls are vapor-permeable, mold-resistant, and regulate humidity naturally—ideal for anyone sensitive to pollutants or toxins.

✅ Thermal & Acoustic Insulation: Say goodbye to synthetic insulation. HempLime keeps your space warm in winter, cool in summer, and quiet all year round.

✅ Fire and Pest Resistant: The lime component is naturally fire-retardant and prevents insects and rodents from nesting in the walls.

✅ Durable, Yet Recyclable: Unlike concrete, HempLime can be crushed and reused at the end of a building's life, making it a truly circular material.

Ready to Build Differently?

At HanfKalk Bau, we believe the future of construction lies in natural solutions. Whether you're building a new eco-home or renovating sustainably, HempLime offers performance, beauty, and a low environmental impact.

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