rockwool acoustic insulation

Rockwool Acoustic Insulation

Rockwool Insulation make a vast range of Rockwool acoustic insulation products such as the Rockwool RW range of semi – rigid and rigid insulation slabs. This range consists of Rockwool RWA45 (45KG/m3) , RW3 (60KG/m3) and RW5 (100KG/m3) along with Rockwool Flexi. The weight signifies the density of the product the heavier the density the more sound absorbent. We often supply Rockwool RW3 and RWA45 for recording studios for use as a component of a sound reduction system.

The Rockwool acoustic slabs are water repellent and non hygroscopic and have good fire resistance along with a superb thermal conductivity. Thermal values are as follows the RWA45 has 0.035W/m-K and the RW3 and RW5 are 0.034W/m-K. This spun rock mineral wool insulation works by impeding as well as absorbing sound waves through the structure of the mineral wool fiber.

Reduce noise by using Rockwool acoustic insulation materials

The acoustic properties of these products make them an ideal insulation for use in sound studios where total noise absorption is necessary. Also partition walls and party walls and floors in your home to reduce the transmission of noise that may come from bathrooms or child’s play or bedroom. We are always being asked what can i do to stop noise from my next door neighbours. Well the ideal thing to do if there is room permitting would be to batten the wall between the properties. Filling the depth with RWA45 and covering with sheets of sound plasterboard. Doing this should significantly reduce the noise through the party wall.

For more information or for the latest special offers please call our national sales office now.


SPECIFICATION: 30mm – 100mm 
SIZE: 1200mm – 600mm 

Special offer
Rockwool Flexi 1200×600
Size:4.32m2 pack
Thick: 100mm
Only £39.90 + vat
Quote: ROC045

Special offer
Rockwool RWA45 1200×600
Size:2.88m2 pack
Thick: 100mm
Only £21.00 + vat
Quote: RWA045

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Dont normally leave reviews but they helped me with products through out my selfbuild and saved me a lot of money

Ady Moon, Moon Building

Good price, good product great service. Thank you

Julie Rhodes,

As described quick delivery and good condition thankyou

Nick Wilson

Awesome guys sorted me out when i didnt have a clue what to order top geezers

Badders, Holy smoke Vape store

As a small building company we find that BMD will equal or beat our trade depot plus we get free delivery too !!, Also we can get everything in one order and being able to talk to an actual person rather than clicking on a website means we get the service we want. saves time and money whats not to like ? :-)

Clemency Bedford, Bedford Building Maintenance

Top Service From quote to delivery can’t get any better thanks

C Lewis, C Lewis Building

Thanks for my order great service

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After days of trying to order some Rockwool from suppliers who never got back to me or quoted silly prices, my enquiry to BMD was answered in minutes politely and with clear knowledge of the products and delivery arranged on the phone all at a great price. Top marks for A1 service and product knowledge.

Rich Jenn

Excellent price and delivery what more can i say , keep it up BMD


Thanks for saving my bacon with next day delivery will be back when I need some more Insulation.

Scott Ainsdale, SA Electrical

Purchsed our floor and wall insulation from this company, they are very helpful and went through the options available to me. after searching about the total price was the best i had so i gave them the order. Deliervy was made in 2 days and everything was fine. I will use them again for the next part of my building project.

James Kergan, JK Building services

Ordered Celotex insulation from this company for the first time last week and I will definately be back again. Good price and delivery 2 days later thankyou.


Matt Chapman, MC Construction

Nice to deal with, quick delivery and cheap prices.

Simon Berrinfield

Good for cheap insulation, i bought some celotex from them and it was delivered last week, it was a lot cheaper than anyone else in my area. i’m very happy with this service.

Rav Kumar

Fantastic Company. Helped with the order from start to finish. Even had an issue my end with the payment and they couldn’t be more helpful.

Mike Reynolds

Excellent company, Jason gave us a really good price and the items were delivered 2 days later much quicker than anyone else could offer. even the delivery driver was incredibly helpful, honestly can’t fault them Jacqui

Jacqueline Jelley,

Ordered online as it was the weekend , recieved a call to arrange delivery day on the Monday morning . all goods arrived in great condition and on the day they said.

Sue Brenner, Holistic regen

Great service, goods supplied on time , very satisfied

Alan Gibbs

Very happy with the service we received. Fantastic product at a fantastic price. Cant recommend Jason and the team highly enough. Ordered during Covid-19 when everything was slightly crazy and delayed and Jason called and said they had a lorry in our area so could deliver the very next day! Thank you guys for 5 star service, will be back in the future . All the best, Lacey. Travellers Finds Ltd

Lacey Griffiths, Travellers Finds Ltd