Materials – Internal Wall Insulation

Internal Wall Insulation


Rockwool introduces this high-standard semi-rigid, flexible resin bonded slabs specifically for use in acoustic, thermal and fire insulation. These Acoustic Insulation 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. Rockwool Sound Insulation Slabs provide great soundproofing with thermal insulation and fireproof properties.

The Rockwool Sound insulation slabs are also good for ventilation plants in all types of offshore platforms and ships, buildings, acoustics ceilings and partition panels.

Rockwool RWA45 features:

Water repellent
Excellent thermal, acoustic and fire insulation
Resists high temperatures
No maintenance
Black or white tissues and aluminium foil facings available

Rockwool RWA45 specifications:

Board Thickness: 25mm or 30mm or 40mm or 50mm or 60mm or 75mm or 100mm
Board Size: 1200 x 600+
The stress required to produce 10% compression (kN/m2): 3.0
The stress required to reach the elastic limit (kN/m2): 3.5
Displacement at 5 kN/m2 stress: 16.5 %
Thermal Conductivity (W/mK) : 0.040-0.063
Brand: Rockwool
Fire: assessed by LPC as a suitable product for upgrading the fire resistance of dense concrete slabs.

Environmental concerns

The RWA45 Rockwool Slab Insulation 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.

Rockwool RWA45 certifications:

Rockwool RWA45 100mm slab Insulation is 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.


Insulation is a mobile home owner’s best friend. Not only does it keep your home cozy in the winter and cool in the summer, but it also helps to reduce energy costs. There are a variety of insulation options available on the market, but one of the most popular choices is Rockwell Insulation Slab. This type of insulation is made from expanded polystyrene foam, which offers excellent thermal protection. It also has a high R-value, meaning that it can effectively resist heat transfer. In addition, Rockwell Insulation Slab is easy to install and does not require any special equipment or training. As a result, it is an ideal choice for mobile home owners who want to improve the energy efficiency of their home.

There are many benefits to insulating your mobile home, static caravan or park home. By doing so, you can help to keep your energy bills down and make your home more comfortable all year round.

One of the most popular insulation materials for mobile homes is Rockwell insulation slab. This product is designed to be easy to install, and it provides excellent thermal and acoustic performance. It's also fire resistant, which is an important safety consideration in any home.

If you're thinking of insulating your mobile home, park home or static caravan, Rockwell insulation slab is definitely worth considering. It's a high-quality product that will help you to save money on your energy bills and make your home more comfortable. Contact us today for more information.

Mobile homes, park homes and static caravans are all susceptible to drafts and poor insulation. mobile homes in particular can be at risk of damp due to their construction. Park homes and static caravans are generally well insulated but can still suffer from drafts. The best way to improve the insulation in your mobile home, park home or static caravan is to install Rockwell insulation slab. This will provide a high quality insulation value and prevent drafts from entering your home. Rockwell insulation slab is easy to install and will make a big difference to the comfort of your home.