Rockwool RW5 Acoustic Mineral Wool is a high-density insulation slab designed to absorb airborne sound and block fire spread in internal walls, floors, and ceilings. Each 1200mm x 600mm slab friction-fits between timber or steel studs without mechanical fixings.
Made from stone wool, RW5 is Euroclass A1 non-combustible, water-repellent, and vapour-permeable. It performs well in both domestic and commercial settings and supports compliance with UK acoustic and fire regulations. For guidance on fitting, refer to the Rockwool RW5 installation guide.
Key Features
Reduces airborne sound between rooms
Euroclass A1 fire-rated, non-combustible
Water-repellent and breathable stone wool
Thermal conductivity of 0.034 W/mK
Fits timber or steel stud partitions
Available in 25mm, 30mm, 50mm, 75mm, and 100mm thicknesses
Delivery is free to Mainland England and Wales. Deliveries are chargable to Scotland.
Once the order is placed, our courier will call you within 3 working days to arrange a delivery date. If you do not hear from the courier within 3 days, please get in touch with us. The majority of deliveries are made within 7 days, occasionally a little longer during peak periods.
Deliveries are made between 08:00 and 18:00 on the day, we request the driver calls you one hour before with an advised time.
Delivery is made via a kerbside tail lift lorry, we cannot deliver to sloping ground as the tail lift must be able to lay flat.
The road must be wide enough for a lorry to fit down and free from obstruction, if there are any access restrictions, please contact us.
Deliveries must be signed for, please report any damages to us within 24 hours.
We offer all bricks with a tail lift offloading service, Please familiarise yourself with the information below.
Crane offloading is available as a premium service for some bricks.
FAQ
All of our C16 and C24 graded timber is regularised
Regularised timber is timber that has been processed to have a uniform shape and size. This means that the wood has been sawn and planed to remove any irregularities and ensure that each piece of wood has consistent dimensions. Regularised timber is often used in construction, particularly in the framing of buildings, as it is easier to work with and can be more efficiently installed than irregularly shaped timber.
We have one of the largest ranges of timber lengths, dimensions and grades available to buy online.
The variation you require will determine the exact lead time and delivery method.
Most orders arrive within 3-4 days, the maximum is 7 days. Please get in touch before you order if you need a specifc delivery date.
Delivery charges vary by postcode. To find out the delivery charge, add the item(s) you require to your basket and select CALCULATE SHIPPING at the bottom of the page.
Some orders are delivered on our own vehicles based in Leicestershire and Cheshire. We also use carriers including Yodel and Tuffnells. For some sizes and locations we use regional distributors.
If you'd prefer crane offloading rather than tail lift vehicle offloading for your brick order then this service is available for the majority of bricks that we sell. Charges are shown at checkout.
For deliveries of less than 6 packs then Taillift offloading is normally a more cost effective option
Downloadable information can be found here:
Armstrong Cheshire supply the full range of Catnic Lintels. If you don't see the lintel you need on our website, choose from the Catnic Lintel Selector Brochure and give us a call 01625 322269
Downloadable information can be found here:
Rockwool RW5 Acoustic Mineral Wool is a high-density insulation slab designed to absorb airborne sound and block fire spread in internal walls, floors, and ceilings. Each 1200mm x 600mm slab friction-fits between timber or steel studs without mechanical fixings.
Made from stone wool, RW5 is Euroclass A1 non-combustible, water-repellent, and vapour-permeable. It performs well in both domestic and commercial settings and supports compliance with UK acoustic and fire regulations. For guidance on fitting, refer to the Rockwool RW5 installation guide.
Key Features
Reduces airborne sound between rooms
Euroclass A1 fire-rated, non-combustible
Water-repellent and breathable stone wool
Thermal conductivity of 0.034 W/mK
Fits timber or steel stud partitions
Available in 25mm, 30mm, 50mm, 75mm, and 100mm thicknesses
Delivery is free to Mainland England and Wales. Deliveries are chargable to Scotland.
Once the order is placed, our courier will call you within 3 working days to arrange a delivery date. If you do not hear from the courier within 3 days, please get in touch with us. The majority of deliveries are made within 7 days, occasionally a little longer during peak periods.
Deliveries are made between 08:00 and 18:00 on the day, we request the driver calls you one hour before with an advised time.
Delivery is made via a kerbside tail lift lorry, we cannot deliver to sloping ground as the tail lift must be able to lay flat.
The road must be wide enough for a lorry to fit down and free from obstruction, if there are any access restrictions, please contact us.
Deliveries must be signed for, please report any damages to us within 24 hours.
We offer all bricks with a tail lift offloading service, Please familiarise yourself with the information below.
Crane offloading is available as a premium service for some bricks.
All of our C16 and C24 graded timber is regularised
Regularised timber is timber that has been processed to have a uniform shape and size. This means that the wood has been sawn and planed to remove any irregularities and ensure that each piece of wood has consistent dimensions. Regularised timber is often used in construction, particularly in the framing of buildings, as it is easier to work with and can be more efficiently installed than irregularly shaped timber.
We have one of the largest ranges of timber lengths, dimensions and grades available to buy online. The variation you require will determine the exact lead time and delivery method.
Most orders arrive within 3-4 days, the maximum is 7 days.
Please get in touch before you order if you need a specific delivery date.
Delivery charges vary by postcode. To find out the delivery charge, add the item(s) you require to your basket and select CALCULATE SHIPPING at the bottom of the page. Some orders are delivered on our vehicles based in Leicestershire and Cheshire. We also use carriers including Yodel and Tuffnells. For some sizes and locations, we use regional distributors.
If you'd prefer crane offloading rather than tail lift vehicle offloading for your brick order then this service is available for the majority of bricks that we sell. Charges are shown at checkout.
For deliveries of less than 6 packs then Taillift offloading is normally a more cost effective option
Downloadable information can be found here:
Armstrong Cheshire supply the full range of Catnic Lintels. If you don't see the lintel you need on our website, choose from the Catnic Lintel Selector Brochure and give us a call 01625 322269
Rockwool RW5 Acoustic Mineral Wool Insulation 1200mm x 600mm - 25mm (8.64m2 Per Pack) - 24 Pack Pallet
is backordered and will ship as soon as it is back in stock.
Couldn't load collection availability
Delivery charges will vary depending on your location.
To find out delivery cost to your postcode, add the products your require to your basket and then review your basket, entering the delivery postcode
We look to dispatch all products same-day where possible, we use a close network of couriers we have worked alongside for a number of years and will share any and all shipping updates with you directly.
Rockwool RW5 Acoustic Mineral Wool is a high-density insulation slab designed to absorb airborne sound and block fire spread in internal walls, floors, and ceilings. Each 1200mm x 600mm slab friction-fits between timber or steel studs without mechanical fixings.
Made from stone wool, RW5 is Euroclass A1 non-combustible, water-repellent, and vapour-permeable. It performs well in both domestic and commercial settings and supports compliance with UK acoustic and fire regulations. For guidance on fitting, refer to the Rockwool RW5 installation guide.
Key Features
Reduces airborne sound between rooms
Euroclass A1 fire-rated, non-combustible
Water-repellent and breathable stone wool
Thermal conductivity of 0.034 W/mK
Fits timber or steel stud partitions
Available in 25mm, 30mm, 50mm, 75mm, and 100mm thicknesses
Rockwool RW5 Acoustic Mineral Wool is a high-density insulation slab designed to absorb airborne sound and block fire spread in internal walls, floors, and ceilings. Each 1200mm x 600mm slab friction-fits between timber or steel studs without mechanical fixings.
Made from stone wool, RW5 is Euroclass A1 non-combustible, water-repellent, and vapour-permeable. It performs well in both domestic and commercial settings and supports compliance with UK acoustic and fire regulations. For guidance on fitting, refer to the Rockwool RW5 installation guide.
Key Features
Reduces airborne sound between rooms
Euroclass A1 fire-rated, non-combustible
Water-repellent and breathable stone wool
Thermal conductivity of 0.034 W/mK
Fits timber or steel stud partitions
Available in 25mm, 30mm, 50mm, 75mm, and 100mm thicknesses
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Built for Fire Safety and Sound Control
RW5’s dense stone wool structure acts as a barrier to fire and airborne sound. It is rated Euroclass A1 and helps prevent the spread of flames and heat, while significantly reducing transmission of speech and noise between rooms.
This product is suitable for internal partitions and floors in schools, homes, offices, and industrial spaces. You can rely on its tested performance where both acoustic clarity and fire containment matter.
Fast Friction-Fit Installation
Each RW5 slab is cut to 1200mm x 600mm and designed to friction-fit between studs or joists. It holds itself in place, reducing labour time and making it easy to fit in vertical and horizontal applications.
Strong and Breathable Performance
Rockwool RW5 resists moisture and allows vapour to pass through, keeping wall cavities dry and stable. It keeps its shape and density over time, even under compression, helping maintain performance long-term.
Fits Standard UK Construction
Sized to suit typical framing systems in British builds, RW5 is ideal for residential retrofit and new builds alike. With options from 25mm to 100mm, you can tailor insulation levels without overengineering the wall space.
Backed by Rockwool Quality
Made in the UK by Rockwool, RW5 is supported by full testing, technical data, and fire certificates. Use it in compliant specifications where acoustic performance and fire safety are essential.
Have a question?
If you have any questions about our products or would like to learn more about our shipping options please feel free to contact one of our team today.
Rockwool RW5 Acoustic Mineral Wool Insulation 1200mm x 600mm
From£826.00
Unit price /
Unavailable
Rockwool RW5 Acoustic Mineral Wool is a high-density insulation slab designed to absorb airborne sound and block fire spread in internal walls, floors, and ceilings. Each 1200mm x 600mm slab friction-fits between timber or steel studs without mechanical fixings.
Made from stone wool, RW5 is Euroclass A1 non-combustible, water-repellent, and vapour-permeable. It performs well in both domestic and commercial settings and supports compliance with UK acoustic and fire regulations. For guidance on fitting, refer to the Rockwool RW5 installation guide.
Key Features
Reduces airborne sound between rooms
Euroclass A1 fire-rated, non-combustible
Water-repellent and breathable stone wool
Thermal conductivity of 0.034 W/mK
Fits timber or steel stud partitions
Available in 25mm, 30mm, 50mm, 75mm, and 100mm thicknesses
