Acoustic insulation, which is also called soundproof insulation, creates a barrier for sound waves to reduce sound transfer, while still providing thermal insulation. When sound waves travel through the air, they pass from material to material in vibrations. The more mass that a sound wave has to travel through, the fewer vibrations that will reach the other side of the material. A dense insulation roll or slab can dampen sound waves and cause them to dissipate, so you can no longer hear noises from other rooms, or outside.
The material that you choose to insulate your space with also has an impact on the volume of the noise that you hear. Glass mineral and rock mineral are the two most popular choices for noise insulation.
Rockwool insulation have been making thermal acoustic insulation products for over 80 years. As a leading UK manufacturer, they prioritise quality and care at every corner. Rockwool’s RWA45 range is made from rock mineral, which absorb sound and provides excellent sound isolation between floors and internal walls.
Rock mineral wool, which is also known as stone mineral wool, is very dense. Manufacturers heat molten rock and steel slag to high temperatures. As the materials melt, manufacturers quickly spin fine strands of rock and slag together. The result is a slab of what looks like wool. The acoustic slabs are resin bonded and cut to size. All the products in the RWA45 range are cut into 1200mm by 600mm acoustic insulation slabs. They can fit between standard stud partitions and joists with ease.
RWA45 Rockwool sound insulation slabs provide the best acoustic and thermal insulation for walls and floors. Each slab contains layers and layers of dense materials for maximum sound absorption. They have a density of 45kg/m3 and, even better, rock is a poor conductor of sound. Overall, these slabs are excellent for people who want sound-deadening insulation that is both rated A1 (non–combustible) on the Euroclass scale and is moisture-resistant.
Acoustic insulation rolls are designed to improve your quality of life by dampening sounds from one level to the next. Lots of people buy floor sound insulation in rolls. Acoustic rolls are often perforated to standard measurements. You can simply roll the product out into your pre-measured floor space. Rolls are also ideal for uneven walls. They are flexible, meaning you can manipulate them to fit around pipes and even roof beams.
Knauf Insulation is one of the most trusted manufacturers of sound-deadening insulation rolls. The acoustic roll in the Knauf Earthwool range are made from glass wool fibres (fiberglass insulation). Glass, unlike rock, is a good conductor of sound. The manufacturing process helps to create a material that is resistant to sound transmission.
Manufacturers heat recycled glass to high temperatures. They quickly spin the melted glass to make fibres. The small fibres melt together to form a mesh that looks like a wool roll. Thousands of pockets of still air are trapped in the wool roll. Glass wool acoustic insulation is extremely dense, which makes it an excellent barrier for sound vibrations. Knauf glass wool rolls have a minimum density of 10kg/m3.
Knauf’s ECOSE technology means that the rolls are much softer to the touch than other brands of fibreglass insulation. Rolls in the Earthwool range are 1200mm and have perforations at 600mm for ease of installation. Like the Rockwool slabs, Knauf rolls are rated A1 (non-combustible) on the Euroclass scale.
The type of insulation that you choose depends on your circumstances. There are lots of advantages of choosing either rock mineral or glass wool insulation. Here are a few things to consider when making your choice.
● Density - Rock mineral wool is far denser than glass wool, which means that it performs better as soundproofing insulation.
● Installation - Rock mineral wool slabs are far more rigid than glass wool rolls. They are also resin bonded. Rolls are better for difficult, uneven areas that would not suit rigid slabs.
● Fire - Both rock mineral and glass wool acoustic insulation materials are rated A1 (non-combustible) on the Euroclass scale. The Euroclass scale regulates the classification of insulation materials across Europe.
● Moisture - Rock mineral wool is resistant to water. You do not have to worry about sag or rot when you choose rock mineral slabs as acoustic insulation for partition walls, cavity walls and floors. Glass wool insulation is not as resistant to moisture. When moisture takes hold of glass wool rolls, they become a breeding ground for bacteria, fungi, and mildew. People who live in areas with high rainfalls often choose rock mineral wool slabs.
● Price - If you are searching for cheap acoustic sound proof insulation products, you should browse through our glass wool rolls. Glass wool insulation is up to 10% cheaper than the rock mineral wool alternative. However, being less dense than rock mineral wool, it doesn’t achieve the same levels of acoustic performance.
Whether you buy sound reduction insulation for walls or acoustic insulation for floors, you might need to cut your insulation down to size. Pipes, cables, and joists can get in the way of a perfect finish. Even if you have bought noise insulation that perfectly fits between your studs, it is worth knowing how to resize it.
Lots of people think that they need specialist equipment to cut insulation. You can cut rock and glass wool insulation with a simple serrated knife. Utility knives are another popular choice, but they do dull quickly. We recommend marking your measurements and using a guide (such as a straight piece of wood) to keep your cuts accurate
Always wear safety gloves, aprons, and goggles. If you are concerned about health and safety, consult with a professional before making any cuts.
At Materials Market, we stock one of the largest ranges of sound-deadening insulation in the UK. Soundproof insulation is the go-to choice for people who want to create a more comfortable and relaxing environment at home. Our slabs and rolls can reduce the transmission of sound between your internal walls and floors. We stock plenty of floor sound insulation and sound insulation for walls. Browse through our industry-leading brands to find a slab or roll that can reduce the noise pollution in your home. We don't sell acoustic panels.