Thermafleece NatraHemp 70mm Hemp Insulation Slabs

Thermafleece NatraHemp - British Hemp Plant Fibre Insulation

Crafted from British-grown hemp, the 70mm x 570mm Thermafleece NatraHemp Insulation Slabs deliver a sustainable, high-performance plant fibre insulation solution for UK construction projects. Hemp is a rapidly renewable crop with minimal environmental impact, producing premium fibres ideal for thermal applications. These slabs are manufactured from a hemp-rich fibre blend and thermally bonded to ensure long-term durability and prevent settlement.

Engineered to fit between rafters, joists, and studs with precision, the 70mm Thermafleece NatraHemp slabs deliver exceptional thermal performance across multiple building applications. At 28 kg/m³ density, the product also provides superior acoustic performance, effectively dampening sound across walls, floors, and roof assemblies. Incorporating NatraHemp into your build significantly improves energy efficiency and reduces operational heating expenses.

Looking for the NatraHemp 70mm x 370mm Version ? Visit NatraHemp 70mm x 370mm

Key Benefits

1. Model: 70mm NatraHemp
2. Thickness (mm): 70mm
3. Length: 1200mm
4. Width: 570mm
5. Pack Coverage: 16.42m²
6. Pack quantity: 24 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-based, natural fibre insulation, NatraHemp offers an animal-free alternative for environmentally conscious builds. Produced in Britain using domestically farmed hemp, it strengthens local supply chains whilst minimising environmental footprint.

NatraHemp remains vapour open and breathable, enabling it to regulate moisture during high-humidity periods and foster balanced building performance.

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 equipment during fitting. When installing in enclosed or poorly ventilated spaces such as loft areas, appropriate PPE including a dust mask is advisable.

To preserve breathability, pair NatraHemp with a vapour-permeable underlay.

Application Instructions / How-To Use

• Measure the cavity width before installation
• Cut the batts using a Stanley knife, insulation saw, or by hand tearing for quick fitting
• For precise cuts, compress the batt between 15 mm boards and saw along the overhanging edge
• Press the insulation firmly between rafters, joists or studs to ensure a secure fit
• Use scissors or shears to trim loose fibres
• Install in layers if multiple thicknesses are required to meet specific U-values
• Ensure full coverage without gaps for optimal thermal and acoustic performance

Info

Browse our complete ThermaFleece Insulation range. We deliver across the UK Mainland. For product suitability advice, project guidance, or bulk quotations, contact us on 02039519012 / 02038839057, email sales@insulationbee.co.uk or use Live Chat for competitive UK pricing.