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Acoustic Insulation and Soundproofing

According to Part E of the Building Regulations implemented by the government legislation in 2004 all newly build houses must be fitted with acoustic insulation to improve sound performance of wall partitions, separating floors, and ceilings.

Sound pollution is commonly recognised as a household issue in all types of building construction but unless special care is taken by the builder to provide sufficient acoustic insulation for the walls, floors and ceilings, the homeowner is likely to hear allot of unwanted sounds from footstep noise in the room above to movie playing on the home theatre down the hall.

Sound insulation is required to prevent noise (unwanted sound) being transmitted either from room to room within a building or from external sources. The transmission of noise within a building is by two main routes:

  • Airborne Noise – as the name suggests generally this is noise transmission through the air. It is complicated however in that this noise may generate vibrations in walls, floors and ceilings which then transmit the airborne sound to other parts of the building. The use of absorbent layers and/or the addition of mass to the structure will help reduce airborne noise transmission.
  • Impact Noise – the most common instance of impact noise is footsteps on floors in blocks of flats and similar buildings. The use of resilient and absorbent layers and/or the addition of mass to the structure will help reduce impact noise transmission.
  • buildings are also prone to flanking transmission where both airborne and impact sound energy may be transmitted indirectly through the structure (for example at the junctions of floors and walls). Great care in detailing and the isolation of elements is required to minimize flanking transmission.

Air gaps passing through the structure offer a direct route for sound transmission. Great care should be taken to seal joints between and around elements and around service penetrations. Sound-dampening acoustic batt insulation installed into partitions during construction is a very good choice for reducing sound pollution. It is highly recommended that the insulation fits snugly into place, and that it fills the wall cavity. Acoustic insulation should be carefully cut to fit around electrical boxes and pipes eliminating any gaps or holes that could easily allow sound to flow through.

Sound waves are reflected when they hit a hard surface. Acoustic insulation is made from porous materials of varying density and composition to convert the sound energy into heat within the open pores and absorb part of the reflected sound. In order to maintain the best absorption values the air channels should be open to the surface so that sound waves can propagate into the material. Pores in acoustic insulation should not be sealed by paint or any other coverings. Any protective shielding for the acoustic insulation should generally be perforated to maintain soundproofing values. Acoustic insulation should also be kept dry during storage to maintain its soundproofing capabilities.

Using mineral wool as a sound absorbent layer in partitions and floors significantly improves their acoustic performance, whilst only adding minimally to the overall mass of the structure. In partitions glass mineral wool complements the plasterboard by absorbing airborne sound in the cavity and reducing reverberation, It Is particularly effective at preventing the hollow sound that can occur in partitions with unfilled cavities.

The ability of an acoustic insulation material to absorb sound is usually provided in the form of an absorption coefficient. The absorption coefficient is defined as the ratio of sound energy absorbed by a given surface, to the sound energy incident upon that surface. The absorption coefficient can vary from 0 to 1. If for example the absorption coefficient is 0.9, then 90% of the sound energy will be absorbed by that material. Most porous absorbers are more efficient at high frequencies, while improving the materials thickness, or mass, can increase low frequency absorption.

Sound Transmission Class (STC) is a scale used to rate partitions like walls or floors on how well they reduce sound or noise levels. The rating directly reflects the number of decibels (dB) a partition reduces. Normal conversation is about 60 dB. A standard interior wall with 3/8" gypsum board has an STC of about 35. This means if someone were speaking at normal level in the next room, you would hear about 25 dB of noise, or just over a whisper.

Insulationshop.co offers wide range of acoustic insulation products from manufacturers: BRITISH GYPSUM, CMS DANSKIN, CELLECTA, EUROFORM, ISOMASS, ISOVER, JCW, KARMA, KNAUF, MARMOX, ROCKWOOL, SUPERGLASS, THERMAFLEECE, URSA and XTRATHERM are suitable for soundproofing all kinds of partitions. For more information about particular product please see product description.

CHOOSE MANUFACTURERS or scroll down to see products (show)

Brand: Rockwool Model and Size: 600x1200mm - 11.52m2
Delivery Time: 1-3 working days
25mm Rockwool RWA45 is a high quality resin bonded flexible slab for a wide range of thermal, acoustic and fire insulation requirements both within buildings and for industry. They are suitable for many applications including thermal insulation for floors, walls, roofs and boiler rooms. The str..
Guide Price: £34.32
£41.18 inc VAT
26mm Karma Acoustic OverlayPlus 26
Guide Price
Brand: CMS Danskin Acoustics Model and Size: 2400x600mm - 1.44m2
Delivery Time: 1 - 2 days
Karma Acoustic OverlayPlus 26 is an overlay board intended to be laid above a timber deck to reduce impact and airborne sound. It consists of 18mm T&G4, P5, chipboard laminated to a 8mm recycled foam resilient layer and provides superior impact performance than Karma Acoustic Overlay 23.CHARACTE..
Guide Price: £28.31
£33.97 inc VAT
16mm CMSDanskin Soundblocker - Acoustic Treatment For Suspended Ceilings - 600mm x 600mm
Guide Price
Brand: CMS Danskin Acoustics Model and Size: 600mm x 600mm - 0.36m2
Delivery Time: 2 - 3 working days
16mm CMSDanskin Soundblocker is an acoustic treatment for suspended ceilings as an effective means of improving sound insulation reducing crosstalk from adjacent spaces. CMSDanskin Soundblocker panels are used where there is poor sound insulation. These panels are usually installed onto the back of ..
18mm CMSDanskin Smartspan 18 Self-supporting Floor Panel - 1200mm x 600mm
Guide Price
Brand: CMS Danskin Acoustics Model and Size: 1200mm x 600mm - 0.72m2
Delivery Time: 2 - 3 working days
18mm CMSDanskin Smartspan 18 is a self-supporting floor panel that can be used where high loads are expected on floating floors creating a monolithic floor. The CMSDanskin Smartspan panels can be placed across bearing structures such as joists, pedestals and batten systems. These panels have excelle..
Brand: CMS Danskin Acoustics Model and Size: 1200x600mm - 0.72m2
Delivery Time: 5 - 7 days
Karma Acoustic MassPanel is a high performance acoustic floor panel with an exceptional performance to height ratio. Comprising an 18mm tongued and grooved cement bonded particle board laminated to a 12mm woodfibre resilient layer, Karma Acoustic MassPanel provides excellent impact and airborne..
52mm Karma Acoustic Blanket - 1200mm x 5m roll
Guide Price
Brand: CMS Danskin Acoustics Model and Size: 1200mm x 5m - 6m2
Delivery Time: 2 - 3 working days
52mm Karma Acoustic Blanket is an innovative acoustic quilt consists of an acoustic barrier membrane sandwiched between two layers of 25mm mineral wool for maximum effectiveness. This innovative acoustic quilt can be used in a wide range of applications. Karma Acoustic Blanket is extremely versatile..
30mm Karma Acoustiwall
Guide Price
Brand: CMS Danskin Acoustics Model and Size: 1200x1200mm - 1.44m2
Delivery Time: 1 - 2 days
Karma Acoustiwall is an ideal acoustic wall treatment for reducing sound transmission through block, brick or stud walls. It comprises 15mm fire resistant plasterboard bonded to a laminated acoustic layer. The panel is fixed to existing walls or studs using mechanical fixings and is immediately..
Guide Price: £70.68
£84.82 inc VAT
Brand: Isomass Model and Size: 1200x600mm - 0.72m2
Delivery Time: 3 - 5 days
Monodeck 17T is an overlay platform system bonded direct to floorboards, designed for reducing sound transmission and improving acoustic performance of timber floors, whenever finished floor height is not critical. The system is used in new build, refurbishment and conversion applications, able to r..
Brand: Rockwool Model and Size: 1200x600mm - 10.8m2
Delivery Time: 2 - 3 working days
30mm Rockwool RW3 Slab (Prorox SL 930) is a semi-rigid resin bonded slab, providing great thermal, acoustic and fire resistance, designed to be used in various applications in floors, walls and roofs, including special applications in industrial buildings for insulation of  ships, offshore plat..
Guide Price: £58.64
£70.37 inc VAT
Brand: Cellecta Model and Size: 600x2400mm - 1.44m2
Delivery Time: 3 - 5 days
Cellecta Deckfon 37T is an acoustic overlay board designed for conversion and refurbishment projects, laid directly on timber floors and when the ceiling is to be replaced, in order of improving its acoustic performance. The product has 15 mm resilient open-cell layer, made from recyclable flexible ..
Guide Price: £49.13
£58.96 inc VAT
Brand: Cellecta Model and Size: 600x2400mm - 1.44m2
Delivery Time: 3 - 5 days
39mm Cellecta Deckfon Quattro is an acoustic overlay board designed for conversion and refurbishment projects, laid directly on timber floors and when the ceiling is to be retained. Being a composite floor system, the product consists of four layers, including a decoupling acoustic fleece, 18 mm thi..
Guide Price: £60.19
£72.23 inc VAT
37mm Karma Joistdeck 37 Chipboard
Guide Price
Brand: CMS Danskin Acoustics Model and Size: 2400x600mm - 1.44m2
Delivery Time: 1 - 2 days
Karma Acoustic Joistdeck 37 is a high performance overlay board designed to be installed directly on to joists with a resilient acoustic ceiling system below. It comprises 22mm T&G4 chipboard laminated to a 15mm chipfoam resilient layer. Reduces both airborne and impact sound through timber..
Guide Price: £41.17
£49.40 inc VAT
Brand: Isover Model and Size: 1200x600mm - 230.40m2
Delivery Time: 3 - 7 days
50mm Isover Acoustic High Performance Slab is a glass mineral wool slab providing high levels of acoustic and thermal performance in wall-lining systems, partitions and modular building applications. Manufactured from a combination of silica sand and up to 86% recycled post-consumer glass from ..
Brand: Isover Model and Size: 600x1200mm - 11.52m2
Delivery Time: 3 - 5 days
50mm Isover Acoustic Multi-Purpose Slab is a glass mineral wool slab providing high levels of acoustic and thermal performance in wall-lining systems, partitions and modular building applications.APPLICATIONWall lining systemsPartitions and other building structuresCHARACTERISTICSProvides ..
Guide Price: £212.39
£254.87 inc VAT
Brand: Isover Model and Size: 1175x570 - 96.48m2
Delivery Time: 2 - 4 days
50mm Isover Timber Frame Batt 32 is a high density glass mineral wool slab that reduces heat loss through external walls, improving the energy efficiency and carbon footprint of a building as part of two advanced timber frame systems that can meet Part L Building Regulations (England and Wales)..
Brand: Rockwool Model and Size: 1200x400mm - 5.76m2
Delivery Time: 1 - 2 days
50mm x1200mm x 400mm Rockwool Flexi Insulation Slab is a unique semi-rigid thermal and acoustic insulation product made from volcanic rock. It has a flexible edge, specifically developed using patented technology for a fast and easy, perfect friction fit between timber and metal frame syst..
Guide Price: £30.24
£36.29 inc VAT
Brand: Rockwool Model and Size: 1200x600mm - 8.64m2
Delivery Time: 1 - 2 days
50mm x1200mm x 600mm Rockwool Flexi Insulation Slab is a unique semi-rigid thermal and acoustic insulation product made from volcanic rock. It has a flexible edge, specifically developed using patented technology for a fast and easy, perfect friction fit between timber and metal frame syst..
£46.33
£55.60 inc VAT
Brand: Isomass Model and Size: 1.5m x 50m - 75m2
Delivery Time: 1 - 2 days
5mm Econocheck Underscreed XL5 system is designed to be placed within a masonry structural floor directly below the screed. This isolates the screed from the structural sub floor, and provides sufficient impact absorption to place it amongst the top performing systems available. The Econocheck Under..
Brand: Isomass Model and Size: 1m x 15m - 15m2
Delivery Time: 3 - 5 days
1.6mm Isocheck Re-Mat LVT Resilient Floor Mat is an underlay mat to be fixed beneath luxury vinyl tile floor covering and similar finishes to reduce impact sound transmission through concrete and timber floors. This acoustic resilient mat is constructed from cork mixed with waste rubber from th..
Brand: Isomass Model and Size: 1x15m - 15m2
Delivery Time: 3 - 5 days
Isocheck Re-Mat 3 Resilient Floor Mat is an impact improvement system, designed for reducing sound transmission and improving acoustic performance of concrete floor constructions and different types of floor finishes, such as marble, stone, ceramic, vinyl laminate or solid wood and carpets, als..
Guide Price: £122.21
£146.65 inc VAT
5mm Soundlay Foam White Underscreed CMS Danskin - 1.2m x 50m roll
Guide Price
Brand: CMS Danskin Acoustics Model and Size: 1.2m x 50m - 60m2
Delivery Time: 1 - 2 days
5mm Soundlay Foam White Underscreed CMS Danskin is a floor acoustic underlay material, specially designed for reduction of impact sound transmission through concrete floors, such as precast plank, block and in-situ beam flooring. Soundlay Foam White Underscreed CMS Danskin&n..
Brand: Thermal Economics Model and Size: 6/260mm - 50m
Delivery Time: 2 - 3 working days
6mm IsoEdge Acoustic Perimeter Insulation Strip is a purpose-made flanking sound insulation strip to provide a robust solution for the difficult edge details. It can be applied to most types of concrete floors to achieve the approved document EPCT sound insulation requirements. IsoEdge is a pink-col..
£55.41
£66.49 inc VAT
Brand: Isover Model and Size: 1175x570 - 107.2m2
Delivery Time: 2 - 3 working days
90mm Isover Timber Frame Batt 35 is a medium density glass mineral wool slab that reduces heat loss through external walls, improving the energy efficiency and carbon footprint of a building as part of two advanced timber frame systems that can meet Part L Building Regulations (England and..
Brand: Isover Model and Size: 1175x570 - 187.60m2
Delivery Time: 2 - 3 weeks
90mm Isover Timber Frame Batt 40 is a medium density glass mineral wool slab that reduces heat loss through external walls, improving the energy efficiency and carbon footprint of a building as part of two advanced timber frame systems that can meet Part L Building Regulations (England and Wales) an..
Brand: Isover Model and Size: 1175x570 - 192.89m2
Delivery Time: 2 - 3 working days
90mm Isover Timber Frame Batt 43 is a medium density glass mineral wool slab that reduces heat loss through external walls, improving the energy efficiency and carbon footprint of a building as part of two advanced timber frame systems that can meet Part L Building Regulations (England and..
Brand: British Gypsum Model and Size: 2400x600 - 1.44m2
Delivery Time: 2 - 3 working days
19mm Gyproc Plank Plasterboard is a standard wallboard made of aerated gypsum core bonded to ivory or brown face paper liners, available in both tapered and square edge versions, used for drylining internal surfaces and providing a level of soundproofing when used as a part of specific Gyproc system..
£14.06
£16.87 inc VAT
Brand: Cellecta Model and Size: 600x1200mm - 18m2
Delivery Time: 3 - 5 days
Cellecta Fibrefon Micro Slab 15 is composed from a unique polyester fibre material, giving the slab substantial acoustic characteristics and performance, due to significant sound absorption. All these characteristics make them especially applicable to narrow spaces such as between joists in ceiling ..
Brand: JCW Model and Size: 1200x5000mm - 6.00m2
Delivery Time: 2 - 3 working days
1.2mm JCW Acoustic Barrier Mat is an acoustic barrier matting that offers very good airborne performance across the frequency range. It is a very versatile and dense product that is used for a wide range of applications where airborne sound reduction is required. The most common installation areas a..
Guide Price: £51.77
£62.12 inc VAT
100mm Regupol High Tack Tape  50m Roll
Guide Price
Brand: CMS Danskin Acoustics Model and Size: 100mm x 50m
Delivery Time: 3 - 5 days
Regupol High Tack Tapeis used to join different Regupol materials.    ..
Guide Price: £15.94
£19.13 inc VAT
Brand: CMS Danskin Acoustics Model and Size: 1.25x10m - 12.50m2
Delivery Time: 3 - 5 days
10mm Regupol 6010 SH Acoustic Screed Isolation is a recycled tyre crumb product, which has been specifically developed for heavy load bearing areas where acoustic performance is critical. This sustainable and high performing screed isolation solution delivers the greatest load bearing capacity 10000..
Guide Price: £364.04
£436.85 inc VAT
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