Nationwide 48 Hour Delivery*
Unbeaten on Price!
Expert Help & Guides
Fast, Secure, Checkout
Great Price
Rockwool Insulation - Acoustic Slab Insulation- RWA45

Rockwool Insulation - Acoustic Slab Insulation- RWA45

  • Cavity & Timber Frame Insulation
  • Rockwool

  • Free Next Day Delivery (over £500) in the West Midlands
  • Free Standard Delivery (over £500)
  • View our guides for Help & Advice
 (   Ex. VAT) £30.00
 - £35.70
All prices are including VAT

Select an option to add this to your cart

🚛 Next Day Delivery (West Midlands) – FREE on orders over £500

These building slabs are designed to be used for cavity wall insulation as thermal, acoustic and fire protection. Made from rock mineral wool, the slabs are available in a variety of different thicknesses and facings.  

ROCKWOOL® RW Slabs conform to BS EN 13162:2012: Thermal insulation products for buildings.


  • Versatile 
  • Durable  
  • Ideal for use as cavity wall insulation 
  • Made rock mineral wool  
  • Thickness: 50mm / 75mm / 100mm 
  • Length: 1200mm / 1200mm / 1200mm 
  • Width: 600mm / 600mm / 600mm 
  • Density: 45kg/m³ / 45kg/m³ / 45kg/m³ 
  • Coverage: 6.48m2 per pack / 4.32m² per pack / 2.88m² per pack 
  • Thermal Conductivity: 0.035W/mK / 0.035W/mK / 0.035W/mK 
  • Euroclass Fire Classification: A1 / A1 / A1  

DISCLAIMER: Please make sure this product meets fire safety regulations for your project. 


You may also like…

Frequently Asked Questions

Free shipping will automatically be applied to all orders over £500. Simply add over £500 to your cart and you will see the discount while checking out.

Orders under £150 - £100 carriage.
Under £300 - £50 charge.
Under £500 - £25 charge.
Over £500 is free.

We typically deliver orders within 2-3 business days of ordering.

Orders for the West Midlands will be completed in 1 to 2 working days.

Orders for areas out of the West Midlands will be completed in 3 to 4 working days.

Orders made after 5pm will be processed on the following working day.

Our deliveries are typically made between 8am and 5pm, Monday - Friday excluding Bank Holidays (Great Britain).

We are unable to offer timed deliveries.

Popular brands we supply

You recently viewed…