Rockwool
Rockwool RWA45 (All Sizes)
Rockwool RWA45 (All Sizes)
SKU:rwa4550
Est Delivery between 6th Feb and
12th Feb.

Add £300£360 worth of Rockwool to your order to unlock FREE delivery.
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
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Product Information
Thickness | Slabs Per Pack | Pack Coverage | Packs Per Pallet |
---|---|---|---|
25mm | 16 | 11.52m2 | N/A |
30mm | 12 | 8.64m2 | 16 |
40mm | 12 | 8.64m2 | 16 |
50mm | 9 | 6.48m2 | N/A |
60mm | 8 | 5.76m2 | 16 |
75mm | 6 | 4.32m2 | N/A |
100mm | 4 | 2.88m2 | N/A |
Rockwool Acoustic insulation RWA45
Rockwool introduces these high-standard semi-rigid, flexible resin bonded slabs specifically for use in acoustic, thermal and fire insulation. These slabs are built in a number of thickness and densities in order to suit maximum requirements. The RWA45 slabs are ideal for multiple applications including thermal insulation for walls, floors, boiler rooms and roofs.
Features:
- Water repellent
- Cost effective
- Excellent thermal, acoustic and fire insulation
- Resists high temperatures
- No maintenance
- Black or white tissues and aluminum foil facings available
Specifications:
- Board Thickness: 25mm or 30mm or 40mm or 50mm or 60mm or 75mm or 100mm
- Board Size: 1200 x 600+
- Stress required to produce 10% compression (kN/m2): 3.0
- Stress required to reach elastic limit (kN/m2): 3.5
- Displacement at 5 kN/m2 stress: 16.5 %
- Brand: Rockwool
- Fire: assessed by LPC as a suitable product for upgrading the fire resistance of dense concrete slabs.
Environmental concerns:
The RWA45 does not have Ozone Depleting potential or Global warming potential and therefore complies with the relatively modest threshold of GWP<5 included in documents such as the Code for Sustainable homes. Rockwool Ltd. is increasingly involved in recycling waste rockwool material that may be generated during installation or at end of life disposal.
Health and safety:
Current HSE 'CHIP' regulations and EU directive 97/69/EC confirms the safety of Rockwool material wool.
Certification:
Rockwool slabs are certified by Lloyd's register of shipping as non-combustible materials for use on:
Fixed offshore installations
MED classed ships- DTLR MCA approval
These slabs are rated non-combustible in accordance with ISO 1182 and IMO A.799.
Technical Specifications
Coverage | 0.72m2 |
Length | 1200mm |
Material type | Rockfibre |
Thermal conductivity | 0.035 W/mK |
Width | 600mm |
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
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
Learn more on opening a trade account.
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 020-3481-1978 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