Knauf
Knauf DriTherm Cavity Slab 37 - Glass Mineral Wool (All Sizes) 1200mm x 455mm
Knauf DriTherm Cavity Slab 37 - Glass Mineral Wool (All Sizes) 1200mm x 455mm
SKU:D-37-50mm
Est Delivery between 6th Feb and
12th Feb.
How much will I need?
We recommend adding 10% of additional product to the calculation to account for errors, damages, and obstacles in your project
Couldn't load pickup availability
- Shipping protection for peace of mind
- Fast processing and delivery
- Flexible delivery options


Product Information
65mm, 85mm, 125mm and 150mm are sold in pallets.
Thickness | Boards Per Pack | Coverage Per Pack |
---|---|---|
50mm | 12 | 6.55m2 |
65mm | 10 | 5.46m2 |
75mm | 8 | 4.37m2 |
85mm | 8 | 4.37m2 |
100mm | 12 | 6.55m2 |
125mm | 6 | 3.28m2 |
150mm | 8 | 4.37m2 |
Looking for top-notch insulation solutions? Look no further than Knauf DriTherm Cavity Slab 37 Glass Mineral Wool. These sturdy and fire-safe slabs, available in various thicknesses ranging from 50mm to 150mm, offer exceptional water-repellent properties and eco-friendly insulation, making them a perfect choice for masonry cavity external walls. Accredited by the British Board of Agrément and compliant with various international standards, including BS EN 13162 and ISO certifications, these premium glass mineral wool slabs ensure both quality and environmental sustainability. Plus, with their innovative formaldehyde-free binder technology and renewable raw materials, they're as eco-friendly as they come. Store them indoors for optimal protection on-site, and remember, tightly knitting the slabs together ensures superior insulation performance. Trust Knauf for reliable, high-performance insulation solutions.
Key Features
- Premium glass mineral wool
- Sturdy slabs
- Sold in pallets
- Fire-safe
- Water-repellent
- Scent-free, rot proof
- Eco-friendly insulation
- Water-vapour resistant: No
Specifications
- Material type: Glasswool
- Thermal conductivity: 0.037 W/mK
- Thicknesses: 50mm, 65mm, 75mm, 85mm, 100mm, 125mm, 150mm
- Length: 1200mm
- Width: 455mm
Storage
For a continued protection on-site, store the Knauf slabs indoors. Keep them covered by a weatherproof tarpaulin and off the ground. Do not leave the pallets outdoors, permanently exposed to the elements.
Certifications
Knauf DriTherm Cavity Slabs 37 are produced as per BS EN 13162, EN 16001 Energy Management Systems, OHSAS 18001 Occupational Health and Safety Management Systems, ISO 14001 Environmental Management Systems, and ISO 9001 Quality Management Systems, as approved by Bureau Veritas.
Frequently Asked Questions
What are the key features of Knauf DriTherm Cavity Slab 37? Premium glass mineral wool, Sturdy and fire-safe slabs, Water-repellent and eco-friendly insulation, Accredited by the British Board of Agrément and Available in various thicknesses: 50mm to 150mm.
How do I ensure the best insulation performance with these slabs? Tightly knit the slabs together during installation to eliminate air gaps and ensure superior insulation.
Are Knauf DriTherm Cavity Slabs environmentally friendly? Yes, they contribute zero Ozone Depletion Potential (ODP), have a low Global Warming Potential, and are made with a bio-based, formaldehyde-free binder technology using renewable raw materials.
What certifications do these slabs have? They are produced in accordance with BS EN 13162, EN 16001 Energy Management Systems, OHSAS 18001 Occupational Health and Safety Management Systems, ISO 14001 Environmental Management Systems, and ISO 9001 Quality Management Systems, approved by Bureau Veritas.
Can these slabs be used in various exposure zones? Yes, Knauf DriTherm Cavity Slabs 37 are suitable for use in all exposure zones.
How should I store these slabs on-site? Store indoors, covered by a weatherproof tarpaulin, and keep them off the ground. Do not leave pallets permanently exposed to the elements.
Can these slabs be used in multi-storey structures? Yes, they are suitable for use in structures up to 12m high and multi-storey structures up to 25m.
Are these slabs scent-free and rot-proof? Yes, they are scent-free and rot-proof.
Where can I purchase Knauf DriTherm Cavity Slab 37? You can find these top-notch insulation slabs on Insulation4less.co.uk, providing a reliable source for your insulation needs.
Technical Specifications
Length | 1200mm |
Material type | Glasswool |
Thermal conductivity | 0.037 W/mK |
Width | 455mm |
Datasheets
Delivery Information
Est Delivery between 6th Feb and
12th Feb.


Delivery will always take place on a weekday (Mon - Fri excl. public holidays).
An exact delivery charge will be calculated at checkout based on your order and location.
Frequently asked questions
Can you help me pick the right insulation for my project?
Yes, of course!
Our team is ready to assist you with any questions and queries you may have.
Just reach out to us via any of the following methods:
Call us: 020-3582-6399
Email us: sales@i4lgroup.co.uk
or click the Livechat tab at the bottom of your screen.
How do I track my order?
As soon as your order is dispatched, you'll receive a dispatch email with delivery dates and details for your order.
If you require an update on your order, you can email customerservice@i4lgroup.co.uk with your order number for assistance.
Can I order now and pay later?
Yes, we offer a variety of flexible payment options to all our customers.
When checking out online, you'll be able to avail of multiple buy now, pay later options with Klarna or PayPal.
The flexible payment options available to you at checkout will be based on the total value of your order.
For B2B customers, you can apply for a 30-day trade credit account, and you'll also unlock:
- Dedicated trade pricing
- Loyalty points and rewards
- A dedicated account manager
Do you really have the best prices online?
Yes! We even have a price match guarantee.
We are so confident that we have the best prices out there that we will match the price of any other online or local retailer.
If you find the same product cheaper elsewhere, we will match the price — just send us the quote or website link.
Read more: Price Match Guarantee
I have a large-scale project, can I get a quote?
Yes, if you are carrying out a construction project that requires a large quantity of materials, email sales@i4lgroup.co.uk with the following information and we will get back to you with your very own bespoke price quote:
- Delivery postcode and address
- Mobile number
- Company name
- A list of required materials and their quantities
Can I open a trade account?
Yes! Trade customers can open a B2B account to unlock bespoke pricing, B2B discounts, trade credit, loyalty points, and a dedicated personal account manager.
You can learn more here: Open a Trade Account
Can I cancel or amend my order after placing it?
Yes, if your order has not yet been processed for dispatch, cancellation/ amendments should be possible.
Our team works quickly to get your order delivered as soon as possible so it is likely that your order will be processed for dispatch within 2-3 hours of purchase.
Contact us immediately via customerservice@i4lgroup.co.uk or call 020-3582-6399 during opening hours.
If you wish to amend your order after it has been processed by our team, it will be treated as a return or a separate new order.
Read more: Returns
What is your returns policy?
Changed your mind about your order? no problem! we offer a 14 day returns period after your order is delivered.
To avail of this your order must be unused, in its original packaging, and suitable for resale.
Refunds are issued immediately after the goods are received and inspected by our team.
If an item arrives damaged or incorrect, you must notify us within 48 hours of delivery.
Prior approval is needed before returning any goods – do not return without authorization.
Special order items are exempt from returns.
Read more: Returns
Why Choose Us?
Factors |
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Other Stores |
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Customer service | Easy to reach, and eager to help | Difficult to contact |
Shipping speed | Fast and organised | Unpredictable |
Competitive pricing | Price match guarantee | What you see is what you get |
Loyalty program | Points + exclusive deals | Basic discounts |
Expert advice | Free 1-on-1 sessions | Self-service only |
Trade accounts | Bespoke pricing, trade credit, and dedicated account manager | none available |