What you gain for your project
Insulating and building in one
The hemp block is both masonry and insulation (λ = 0.071 W/mK). Depending on wall thickness and requirements, no additional insulation layer is needed. It is not load-bearing and is installed in a structural frame or the Hempro system.
Summer heat protection
The mass in the wall delays heat transfer: the phase shift is 7.9 hours at 12 cm and 23.6 hours at 36 cm (manufacturer’s data).
Moisture buffering
Hempcrete can buffer humidity fluctuations in the room air. With µ = 2.8 the wall remains vapour-permeable, provided the plaster is too.
Sound protection
Depending on block thickness, the wall achieves a weighted sound reduction index Rw of 37 to 44 dB; the sound absorption coefficient is α = 0.85 (manufacturer’s data).
Easy to work with
At around 340 kg/m³ the blocks are light and can be cut with a hand saw or band saw. They are laid with thin-bed mortar.
Tested evidence
Fire classification B-s1,d0, approval Z-17.25-1331 and FDES to EN 15804 (INIES 20251046948). IsoHemp takes back site offcuts via RecyHemp (collection points in Belgium).
Your quotation
The right structure depends on the wall, area and requirements. Send us your plans and we will calculate your project.
Are you a dealer? Ask about our dealer terms. We take care of shipping to your warehouse or directly to the site, including unloading.
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