Rockwool RWA45 Acoustic / Thermal Insulation Slabs 1200mm x 600mm x 30mm 8.64m2

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Pricing & Availability:

We are able to deliver most products that we supply nationwide, however there are some products that we supply that are not suitable for delivery via carriers or hauliers, or are not able to be transported by their networks due to the size or the nature of the goods.

The product ranges that we are only able to supply on a local delivery or collection basis from our branches in Surrey and West Sussex includes:

  • Cure It GRP products
  • 20kg / 20 litre / 25 litre drums of paints & sealants
  • Timber products
  • Insulation products
  • Fencing products
  • Plasterboard products
  • Fascias, Soffits, Capping Boards & Accessories
  • Cement
  • Easy Trim PolyureCoat Flat Roofing range

The postcodes that we are able to deliver these products to are as follows:

  • SM1, SM2, SM3, SM4, SM5, SM6, SM7
  • KT1, KT2, KT3, KT4, KT5, KT6, KT7, KT8, KT9, KT10, KT11, KT12, KT13, KT14, KT15, KT16, KT17, KT18, KT19, KT20, KT21, KT22, KT23, KT24
  • TW1, TW2, TW3, TW4, TW5, TW6, TW7, TW8, TW9, TW10, TW11, TW12, TW13, TW14, TW15, TW16, TW17, TW18, TW19, TW20
  • RH1, RH2, RH3, RH4, RH5, RH6, RH7, RH8, RH9, RH10, RH11, RH12, RH13, RH14, RH15, RH16, RH17, RH18, RH19, RH20
  • GU1, GU2, GU3, GU4, GU5, GU6, GU7, GU8, GU9, GU10, GU21, GU22, GU23, GU24, GU26, GU27, GU30, GU35
  • CR0, CR2, CR3, CR4, CR5, CR6, CR7, CR8
  • TN8, TN13, TN14, TN15, TN16
  • DA1, DA2, DA4, DA5, DA6, DA7, DA8, DA9, DA14, DA15, DA16, DA17, DA18
  • BR1, BR2, BR3, BR4, BR5, BR6, BR7, BR8
  • SE1, SE2, SE3, SE4, SE5, SE6, SE7, SE8, SE9, SE10, SE11, SE12, SE13, SE14, SE15, SE16, SE17, SE18, SE19, SE20, SE21, SE22, SE23, SE24, SE25, SE26, SE27, SE28
  • SW2, SW4, SW8, SW9, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20

Unfortunately, we are unable to offer delivery to postcodes outside these areas.

Details of our branches locations that goods can be ordered from for collection can be viewed here.

We also stock and supply a large range of roofing materials, with thousands more being available to order directly from all the leading manufacturers. If you don't see the roofing products that you need on this site please contact us and we will try to source them for you or offer you an alternative.

We are able to offer prices tailored to your exact requirements & project: Please call us on 01737 763008 or email us for a free quotation.


Rockwool RWA45 Acoustic / Thermal Insulation Slabs 1200mm x 600mm x 30mm 8.64m2 Per Pack)

The Rockwool RWA45 range has been developed for thermal, acoustic and fire performance in a range of construction types such as acoustic and thermal insulation of partition walls, ceilings, floors and roofs. The multi-use solution is well suited for easy application throughout constructions. 

Rockwool RWA45 is a robust insulation solution for a range of general building projects as well as specialist specifications such as commercial, leisure, industrial etc.

Rockwool RWA45 slabs are high quality resin bonded slabs that can be used for thermal and acoustic insulation in general building applications. The slabs are available in a range of thicknesses and densities to suit most requirements and are CE marked to EN 13162.

The Rockwool RWA45 range is rated Euroclass A1 non-combustible, providing the highest level of fire performance.

Using Rockwool RWA45 in ceilings, walls and floors can help to compartmentalise rooms, reducing fire spread and damage. RWA45 insulation slabs achieve Lambda 0.035 W/mK and are available in various thicknesses with a density of 45 kg/m3.


Product Information

  • Length: 1200mm
  • Width: 600mm
  • Thickness: 30mm
  • Pack quantity: 4x slabs
  • Pack coverage: 30mm = 8.64m2


  • Thermal conductivity: 0.035 W/mK
  • Reaction to fire: A1 classification to BS EN 13501-1
  • Compliance: BS EN 13162, ISO 14001
  • Water repellent: Yes
  • Water vapour resistance: Negligable


  • Excellent thermal, acoustic and fire performance
  • Easy to handle and install
  • Rated Euroclass A1 non-combustible - the highest level of fire resistance
  • Durable insulation solution which will maintain high performance over the lifetime of the building
  • Water repellent qualities of this insulation prevents moisture build up, damp and rot