Thermafleece NatraHemp Hemp Insulation Slabs 70mm

Thermafleece NatraHemp - British Hemp Plant Fibre Insulation

Crafted from British-grown hemp, the 70mm x 370mm Thermafleece NatraHemp Insulation Slabs deliver a sustainable, plant-based insulation option for UK construction and renovation work. Hemp is a rapidly renewable crop that yields premium fibres ideal for thermal applications. These slabs combine British hemp fibres with thermal bonding to create a stable, long-lasting insulation product that resists settling.

Engineered to slot between rafters, joists, and studs with precision, these 70mm slabs perform effectively across multiple building scenarios. At 28 kg/m³ density, the product delivers strong thermal resistance alongside notable sound-dampening properties, minimising noise transfer through building elements. Incorporating NatraHemp into your property improves thermal efficiency and reduces energy consumption.

Looking for the NatraHemp 70mm x 570mm Version ? Visit NatraHemp 70mm x 570mm

Key Benefits

1. Model: 70mm NatraHemp
2. Thickness (mm): 70mm
3. Length: 1200mm
4. Width: 370mm
5. Pack Coverage: 15.98m²
6. Pack quantity: 36 slabs
7. Thermal Conductivity: 0.042 W/m K
8. Highly breathable: Yes
9. Vapour open: Yes
10. Sound Absorption: NRC 0.90 @100 mm
11. Made from British Hemp: Yes
12. Made in the UK: Yes
13. Contains recycled materials: 37.5%
14. Recyclable: Yes
15. Manufactured to ISO 9001 and 14001: Yes
16. Fire Protection: Self Extinguishing
17. Material: Hemp
18. Range: NatraHemp

As a plant-derived, natural fibre insulation, NatraHemp provides an animal-free alternative for sustainable building projects. Manufactured in Britain using domestically farmed hemp, it strengthens local supply chains whilst minimising environmental footprint.

NatraHemp functions as a vapour-permeable insulation, allowing moisture regulation during humid conditions and promoting balanced internal environments.

Installation & Handling

Thermafleece NatraHemp is non-hazardous and straightforward to install. It causes no skin, eye, or respiratory irritation and requires no gloves or protective gear for handling. When installing in sealed or poorly ventilated spaces like loft areas, wearing a dust mask and suitable PPE is advisable.

To preserve moisture-buffering properties, pair NatraHemp with a vapour-permeable membrane.

Application Instructions / How-To Use

• Establish cavity dimensions before fitting
• Trim batts using a Stanley knife, insulation saw, or hand-tear method for speed
• For clean edges, sandwich the batt between 15 mm boards and cut along the excess
• Compress insulation firmly between rafters, joists or studs for secure placement
• Use scissors or shears to remove protruding fibres
• Layer multiple thicknesses where higher U-values are required
• Maintain continuous coverage with no voids to achieve maximum thermal and acoustic benefits

Info

Browse our full range of ThermaFleece Insulation products. We deliver across the UK Mainland. For product suitability advice, quantity discounts, or technical guidance, contact us on 02039519012 / 02038839057, email sales@insulationbee.co.uk or use Live Chat - Competitive UK Insulation Pricing.