Extensions in hemp blocks.

Why choose hemp blocks for your extension ?

IsoHemp hemp blocks are ideal for your extension projects thanks to their numerous advantages:

Exceptional thermal and acoustic insulation: Ensure optimal comfort in your new space, summer and winter.
Lightweight material and easy to implement: Save time on your site thanks to the simplicity of laying hemp blocks.

Bio-based and durable material: Opt for an environmentally friendly solution with a low carbon footprint.
Customisable aesthetics: Choose from a wide range of finishes to harmonise your extension with the existing building.

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A recognised and certified material.

A material recognised and certified by numerous labels and technical approvals.

The advantages of hemp blocks for your extensions.

Thermal comfort: Benefit from optimal insulation that protects you from temperature variations, summer and winter.
Hygrometric regulation: Hemp naturally regulates humidity, ensuring a healthy environment.
Fire resistance: Hemp blocks offer excellent fire resistance (up to 4 hours), increasing the safety of your extension.
Durability: An exceptional longevity of 150 years, ensuring the sustainability of your investment.
Speed of execution: Thanks to their ease of implementation, your extension works progress more quickly.

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The technical performances of an extension in hemp blocks.

Hemp blocks ensure excellent thermal regulation thanks to their ability to absorb and diffuse heat. This helps maintain a constant indoor temperature, limiting variations due to external conditions.

Key technical data :

Lambda value (λ): 0.071 W/mK
Thermal resistance (R): up to 5.37 m²K/W for 36 cm blocks.
Thermal phase shift: up to 23.6 hours for 36 cm blocks, reducing the impact of temperature variations.

Thanks to their permeability to water vapour, hemp blocks naturally regulate humidity, creating a healthy and consistent indoor environment.

Key technical data :

Water vapour resistance factor (μ): 2.8.
Equivalent diffusion thickness Sd: up to 1 m for a 36 cm block, promoting wall breathability.

Hemp blocks offer remarkable acoustic insulation, effectively absorbing and attenuating noise, for a quieter indoor environment protected from sound pollution.

Key technical data :

Acoustic absorption (α): Coefficient of 0.85 (high sound absorption).
Acoustic attenuation (Rw): up to 44 dB for a 36 cm block, significantly reducing external noise.

Hemp blocks are highly fire-resistant, emit no toxic fumes, and offer increased safety in case of fire.

Key technical data :

Fire resistance: from 240 minutes for blocks of 30 cm or more to 45 minutes for 7.5 cm blocks.
Fire reaction class: B, S1, d0. The hemp block does not emit toxic fumes or flaming droplets.

Hemp blocks are the epitome of a sustainable solution, combining remarkable longevity with a reduced environmental footprint. This bio-based material ensures reliable and environmentally friendly construction.

Key technical data :

Bio-based and low-carbon material: Hemp is a renewable resource that helps reduce CO₂ emissions during construction.
Exceptional lifespan: Thanks to their robustness, hemp blocks maintain their performance for decades without needing replacement.