50mm Rockwool Flexi Acoustic Sound Insulation Slab (8.64m2/Pack)

50mm Rockwool Flexi Insulation Slab offers fantastic thermal, acoustic and fire performance in one robust insulation solution. This multi-purpose insulation solution is perfect for use in metal and timber framing systems. Made from renewable volcanic rock, these slabs are extremely fire resistant (with a classification of A1 non-combustible) and significantly reduce the carbon footprint of a building. 

Whilst they live up to sister slabs such as Rockwool RWA45 in terms of their thermal and acoustic performance, what really sets these 50mm Rockwool Flexi Slabs apart is that they have a patented flexible edge, which allows them to be perfectly friction fitted within the supporting framework. Cut at 1200mm x 600mm, they are suitable for installation between wall frames, roofs, floors and partitions and offer a thermal conductivity of 0.038W/mK.

50mm Rockwool Flexi Acoustic Sound Insulation Slab Applications

Rockwool is one of the leading manufacturers of thermal mineral wool insulation designed to impede sound transmission between rooms. 1200mm x 600mm Rockwool Flexi slab is considered effective thermal insulation for use all over the home, in pitched roof rafters, framed external walls, internal partitions, intermediate floors, separating walls and floors, and timber suspended ground floors. The flexible edge helps to overcome the problems that come with fresh timber shrinkage by expanding into the wider space as the timber dries out. 

The slabs can be used for the following construction types:

• 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

50mm Rockwool Flexi Slabs Specifications

Rockwool Flexi insulation slab 50mm ensures high performance over the lifetime of your build. This 1200mm x 600mm Flexi slab is a dual purpose thermal and acoustic insulation product with a unique flexible edge that allows the product to be tightly fitted between timber and metal frame systems, reducing the potential for air gaps to occur and ensuring thermal and acoustic integrity.

The slabs come in a pack quantity of 12 per pack, giving a pack coverage of (8.64m2/Pack).
Let's have a look at the specs:

• Low Global Warming Potential (GWP) and Zero Ozone Depleting Potential (ODP)
• Part E acoustic rating (resistance to sound) when installed in accordance with ROCKWOOL guidelines
• Rot-resistant - withstands mould and mildew
• Thermal conductivity of 0.038 W/mK
• Water repellent qualities of the insulation prevent moisture build-up, dampness and rot
• Excellent acoustic and thermal performance
• Will not slump, even if studs shrink
• Friction fit for timber and metal frames 
• Fire resistance

Rockwool Flexi Slab 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:

• Euroclass 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

50mm Rockwool Flexi insulation 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 50mm Flexi Slab Storage & Handling

Rockwool Flexi 50mm 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. We recommend marking the dimensions you need on your slab to avoid mistakes.
When it comes to storage, we advise that you store the slabs inside; keeping them nice and dry.

About Rockwool

Rockwool is recognised as being the market-leading acoustic insulation solution. The Rockwool Flexi slab range offers outstanding thermal, acoustic and fire insulation properties as well as lifelong durability. 50mm Rockwool Flexi insulation slabs achieve Lambda 0.038W/mK.

Rockwool Flexi 50mm Acoustic Performance

Rockwool Flexi slabs are the perfect choice for people who want to insulate their homes against unwanted noise. Other types of insulation can often become displaced resulting in cold spots or poor acoustics. 

50mm Rockwool Flexi slab's flexible edge overcomes this by ensuring a perfect fit is maintained between the product and its supporting framework Rockwool RW slabs 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.