HEMPCRETE SPAIN
Hemp-lime building material with CO2 sequestration capacity, breathable and thermally insulating.
Hempcrete is a 100% ecological building material made exclusively from hemp hurd, natural lime and water. The hemp fibres mixed with lime form blocks that store more carbon than is emitted in their manufacture (around −75 kg of CO₂ per m³). Its blocks provide thermal insulation (conductivity ≈ 0.071 W/m·K), reduce noise by up to 44 dB and regulate humidity, keeping it between 35–60%, which eliminates condensation and mould. They are also fire-resistant (classification B-s1,d0 for up to 240 minutes), do not rot or attract insects, and allow passive homes to be built with great interior comfort. Vicat supplies the natural lime binder Prompt, fired at low temperature and free of chemical additives, which improves durability and compatibility with the plant hurd.
The only building material with demonstrated net CO2 sequestration (75-300 kg/m³). Lambda 0.06-0.07 W/mK.
Chosen by Descarboniza. No company pays for what we say about it.
Go to their website200kg/m³
0.06W/m·K
No disponible
Bloques, revestimiento spray, relleno in-situ
Fibra de cáñamocal y agua. Porosidad 68-80%transpirabilidadaislamiento y masa térmica. Bloquessprayrelleno.
75kg/m³
Misma B-EPD que ISOHEMP (n° 21-0078-001.00.00, bloques de cáñamo-cal): GWP A1–A3 = +36,9 kg CO₂eq/m² de bloque instalado (36 cm). Nota jul-2026: A1–A3 positivo → se desmarca Carbono_Negativo (el claim depende de carbonatación/biogénico fuera de A1–A3).
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Upgrade your listingTechnical questions and answers
- What is the carbon footprint (GWP) of HEMPCRETE SPAIN?
- HEMPCRETE SPAIN declares a GWP (A1–A3) of 102.47777777777779 kg CO₂e/m³ according to its verified EPD.
- What is the thermal conductivity (λ) of HEMPCRETE SPAIN?
- The declared thermal conductivity of HEMPCRETE SPAIN is λ = 0.06.
- What is the density of HEMPCRETE SPAIN?
- HEMPCRETE SPAIN has a declared density of 200.
- What is the fire resistance of HEMPCRETE SPAIN?
- The declared fire performance of HEMPCRETE SPAIN is No disponible.
- Does HEMPCRETE SPAIN have an Environmental Product Declaration (EPD)?
- Yes. HEMPCRETE SPAIN has a verified EPD (B-EPD n° 21-0078-001.00.00) under EN 15804+A2:2019 / NBN/DTD B08-001 / ISO 14025.
Values as declared by the manufacturer or its EPD. Always check the current EPD/technical sheet for project-critical calculations.
