Thermafleece NatraHemp Natural Hemp Fibre Insulation Slab is a high performance, cost-effective, medium density and highly breathable hemp fibre insulation solution made from natural and durable plant fibre alternative. Ideal for lofts and warm roofs, timber frame and solid walls and floors, this safe, efficient and sustainable insulation slab fits beautifully between rafters, joists and studs providing a secure fit with excellent thermal insulation performance. Comes with a density of 25 kg/m3, providing good acoustic insulation in a variety of systems and project applications.
Hemp is a fast-growing, low-impact plant crop that produces fine fibres suitable for insulation, making NatraHemp suitable for most where plant fibres are preferred and NatraHemp is also able to be recycled. Like all Thermafleece products, it is long-lasting, safe to handle and will help to support a healthier indoor environment by managing moisture in the building.
Once installed, this hemp insulation product will deliver a level of thermal performance that will exceed low density insulation alternatives. You'll also lower the amount of any energy lost from your building envelope, reduce energy consumption and bring down your carbon emissions by many tonnes over a lifetime of use, aiding in the reducing of greenhouse gas levels.
Installation: Thermafleece NatraHemp is harmless and can be installed without gloves or protective clothing, although we recommend you wear a dust mask in enclosed spaces such as lofts. For more accurate cutting, tightly compress or clamp the insulation between two pieces of solid 15mm board. Overhang the slab where you want to cut keeping the two board edges aligned. Cut the edge with a scalloped edged knife and keep the blade firm and square against both board edges throughout.
Suitable for lofts and warm roofs, timber frame walls and solid walls, suspended ground floors and between floors.
Performance:
Pack Sizes:
What you need to know
Delivery charges
Delivery access
Click here to view their Lorry types & weights
Day & time of delivery
Failed deliveries are chargeable
Damages & missing items
Do not install purchased items if you have a query with the product (e.g. if you need to query damage that occurred during transit).
Delivery
How much does delivery cost?
Delivery charges will vary and will depend on the manufacturer, weight, size and delivery location. The cost is automatically calculated when you add items to the shopping basket.
How long will I wait for my delivery?
The estimated delivery times are shown on each product page, we will email you each step of the way to keep you informed. The majority of products can be delivered within 3-5 working days.We will advise you if the delivery period is different from than stated on our website.
Do you offer next day delivery?
If a product is available with next day delivery, this will be displayed on the product page or in the basket. If you have a particular item that you require quicker than the guide on our website, please contact our sales team on 01858 455055 during office hours, they will be able to confirm whether a quicker delivery is possible.
What if my delivery doesn't turn up on time?
Please contact our sales office on 01858 455055 or email sales@roofgiant.com and we will advise on the status of your order.
Do you offer free delivery if I spend a substantial amount?
Not as standard, we show the delivery charges separate once you go to the checkout so it is clear what you are paying for the products and delivery costs. If you are ordering larger quantities please contact out sales team who will be able to confirm if this is possible.
Do you deliver on weekends?
Not as standard, our deliveries are made Monday to Friday. If you do need an urgent Saturday delivery please contact out sales team on 01858 455055 during office hours who will be able to confirm. This will incur a premium charge if possible.
Do you deliver to Northern Ireland/Guernsey/The Scottish Highlands/Isle of Wight?
Some suppliers/couriers will deliver to these areas but not all, please contact our sales team on 01858 455055 or email sales@roofgiant.com during office hours for confirmation. If we are able to deliver the product you require, additional transport costs will apply, we will be able to confirm this to you. These additional costs are based on the manufacturer, distributor or courier providing the shipping on our behalf.
Do you deliver to Republic of Ireland, Europe and Rest of World?
No, unfortunately we nor our suppliers can deliver outside of Great Britain (and Northern Ireland in some instances).
What if my delivery doesn't turn up on time?
Please contact our sales office on 01858 455055 or email sales@roofgiant.com and we will advise on the status of your order.
Returns Policy
Important: Please do not send goods back before speaking to our sales office.
📞 01858 455055 | ✉️ sales@roofgiant.com | 💬 Live chat
We recommend you take photos of the goods and packaging before returning, as this may be required for courier claims.
Your Right to Cancel
Returns After 14 Days
Refunds & Costs
Exclusions & Brand Policies
👉 For full details, including supplier-specific terms, please see our Returns & Refund Policy.
