75mm Rockwool RWA45 is a multi-application thermal, acoustic and fire insulation slab. This mineral wool insulation solution is purposed to minimise noise in a vast range of general building projects.
 
Key Features
Use in ceilings, walls and floors
A1 non-combustible
45kg/m3 density
Excellent thermal and acoustic performance
600mm width to fit between studwork
Zero Ozone Depletion Potential (ODP)
 
Technical Specification
Material Type:
Rock Mineral
Thickness:
75mm
Width:
600mm
Length:
1200mm
Pieces Per Pack:
6
Sales Unit:
Pack
Sales Unit Coverage:
4.32m2
Brand:
Rockwool
Manufacturer's Reference:
209290
Thermal Conductivity:
0.035W/mK
Density:
45kg/m3
Fire Rating:
A1 Non-Combustible
 
75mm Rockwool RWA45 Sound Insulation Slab Applications
75mm Rockwool Insulation Slab absorbs sound like no other, making it perfect for use in walls, floors, stud partitions and lofts to control home acoustics and reduce noise.
The slabs can be used for the following:
Interior timber or steel partition walls
Interior timber frame floors
Interior timber frame ceilings
Acoustic ceilings and partition panels
I-joist interior partitions
Party walls
 
Rockwool 75mm RWA45 Specifications
Rockwool 75mm RWA45 slabs really do it all. With thermal, acoustic and fire preventative properties, you can be sure this robust insulation solution will maintain high performance over the lifetime of your build. Let's have a look at the specs:
Low Global Warming Potential (GWP) and Zero Ozone Depletion Potential (ODP)
Rot-resistant - withstands mould and mildew
Thermal conductivity of 0.035 W/mK
Hydrophobic - thanks to its water repellent properties
Excellent thermal, acoustic and fire insulation
 
Rockwool 75mm RWA45 Certifications
BS EN is British and European Standard Specifications. With over 100 years of experience, the British Standards Institute is recognised as the UK’s National standards body. BS EN considers Rockwool both:
A1 non-combustible in accordance with BS EN 13501-1 - achieving the highest possible level of fire performance
CE and Key marked in accordance with BS EN 13162:2012 + A1:2015.v
 
100mm Rockwool slabs are also certified by Lloyd's register of shipping as non-combustible materials for use on:
Fixed offshore installations
MED classed ships- DTLR MCA approval
Rated non-combustible in accordance with ISO 1182 and IMO A. 799
 
Rockwool RWA45 Insulation Storage & Handling
RWA45 is a durable insulation solution which is trouble-free when it comes to cutting so you can get the best fit possible in all situations.  The slabs have a soft, fibrous texture, very similar to a loaf of bread. Because of this, a serrated blade is all you need to slice through it.
When it comes to storage, we advise that you store the slabs inside; keeping them nice and dry.
 
Rockwool RWA45 75mm Acoustic Performance
Rockwool thermal and acoustic insulation slab is best known for its excellent acoustic performance. Rockwool respectfully thrashes competitor brands with its prevention of noise transmission from room to room, making it ideal for installation in internal and separating walls.
Rockwool stone wool products work in two distinct ways to dampen sound, either by impeding the transmission of sound through an element of the structure or by absorption of sound at the surface.
Its higher density and non-directional fibre structure trap sound waves and deaden sound vibrations like no other insulation on the market. The structure of the fibres in RWA45 slabs grants them their incredible sound-absorbing performance, with characteristically high coefficients over a wide frequency range.
 
About Rockwool
Rockwool is recognised as being the market-leading acoustic insulation solution. All Rockwool RW slab products offer outstanding fire, acoustic and thermal insulation properties as well as lifelong durability.  The product range consists of high-quality resin bonded slabs in a variety of thicknesses and densities. Rockwool RW semi-rigid slab products, either un-faced or with an aluminium foil or glass fleece on one or both surfaces, achieve an A1 classification in accordance with BS EN 13501-1 and thus meet the requirements of non-combustible materials, as defined in UK and Ireland Building Regulations.