Hempstone
Our building block of the future
Offcut take-back & building biology
The symbiosis of the oldest cultivated plant of mankind (hemp) with one of the oldest and most proven building materials (natural lime) results in the building material of the future.
No additional insulation, only two materials in the entire wall build-up, moisture-buffering for a balanced indoor climate, site offcuts taken back via RecyHemp.
I have to touch this thing...
order our sample box with a hemp block now
Processing
Hemp bricks are not only very easy to work with when cutting and milling. The lightweight stones can be easily erected as partition walls, insulating exterior walls, interior insulation and acoustic walls. Hemp-limestone is always installed in a wooden or concrete skeleton. Hemp bricks are light, very good insulating bricks and do not bear loads.
Simply lay the hemp stone with the appropriate thin-bed mortar. To maintain diffusion openness, the base and finishing plaster must be breathable.
Building physics
Hemp-lime bricks are the best thing you can do to your house in terms of building physics:
They are classified B-s1,d0 for reaction to fire (EN 13501-1), have a thermal conductivity of λ = 0.071 W/(m·K) and a sound reduction index of Rw 44 dB (36 cm), and are open to diffusion (µ = 2.8).
Masonry walls made of hemp bricks do not require an additional insulation layer. They provide cosy warmth in winter and pleasant coolness in summer.
Production
For the production of hemp limestones, hemp hurds, the woody stalks of the hemp plant, lime and water are mixed and pressed in a cold air process and then dried.
