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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.

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Brand: JCW Model and Size: 150x150mm
Delivery Time: 2 - 3 working days
150x150mm Fire and Acoustic Downlighter Cover is designed to help maintain the fire resistance and acoustic integrity of ceilings. It is ventilated to reduce heat build up.CHARACTERISTICSPractical: The downlighter covers allow light fittings to operate without overheating.Resistant: the fire rating ..
Guide Price: £13.67
£16.40 inc VAT
Brand: CMS Danskin Acoustics Model and Size: 1.25x10m - 12.50m2
Delivery Time: 3 - 5 days
17mm Regupol 6010BA Acoustic Screed Underlay 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 k..
Brand: JCW Model and Size: 1200x600mm - 0.72m2
Delivery Time: 2 - 3 working days
18mm JCW Acoustic Cement Particle Board is a high density T&G overlay acoustic board suitable for floors and ceilings, specially designed to add concentrated mass. Used where there is a requirement for a high performance result in acoustic control and fire retardance. Manufactured from Portland ..
Guide Price: £37.81
£45.37 inc VAT
Brand: JCW Model and Size: 1200x600mm - 0.72m2
Delivery Time: 2 - 3 working days
19mm JCW Acoustic Deck 19 is an MDF based acoustic overlay board for shallow platform floor systems, for use with robust standard detail concrete floor constructions and for use with PCT timber floor constructions. It is 9mm t&g MDF board laminated to a 10mm acoustic resilient layer.CHARACTERIST..
Guide Price: £18.91
£22.69 inc VAT
Brand: JCW Model and Size: 1200x600mm - 7.20m2
Delivery Time: 3 - 5 days
JCW Absorber Ceiling Tile is a glass mineral fibre acoustic core board with white speckled surface finish and bevelled edges that can be direct bonded to existing ceiling.CHARACTERISTICSLightweight for ceiling, quick and simple installation, Low (20mm) material thickness which saves headroom space, ..
Guide Price: £331.86
£398.23 inc VAT
20mm JCW Fire Rated Luminaire Cover 600x600mm
Guide Price
Brand: JCW Model and Size: 600x600mm
Delivery Time: 2 - 3 working days
20mm JCW Fire Rated Luminaire Cover that provides maximum protection for ceilings where fire resistant ceiling tiles have been replaced with light fittings. The cover has been designed for ease of fitting. It is self locating and cannot be fitted incorrectly. It incorporates ventilation slots t..
Guide Price: £65.21
£78.25 inc VAT
Brand: JCW Model and Size: 1000x1000mm - 1.00m2
Delivery Time: 2 - 3 working days
20mm JCW RR20 Multi-Purpose Mat is a high performance, cost effective polyurethane bound rubber granulate material, which will retain its acoustic properties throughout a long and maintenance free lifespan. It can be used successfully for a multitude of sound absorbing and impact dampening requireme..
Guide Price: £35.72
£42.86 inc VAT
Brand: JCW Model and Size: 1200x600mm - 0.72m2
Delivery Time: 2 - 3 working days
21mm JCW Acoustic Soundboard Premium 21 is a moisture resistant 9mm TG4 MDF Board with a pre-bonded 12mm high performance resilient layer offering an excellent airborne and impact sound reduction. This is one of the quickest and most effective acoustic solutions on the market. At just 21mm thickness..
Guide Price: £26.23
£31.48 inc VAT
Brand: JCW Model and Size: 1200x1200mm - 1.44m2
Delivery Time: 2 - 3 working days
27.5mm JCW Silent Board is an acoustic wall liner manufactured by laminating a 15mm acoustic resilient layer to a 12.5mm layer of acoustic grade plasterboard to drastically reduce sound transmission. It can be applied to either masonry or stud walls and is also suitable to reduce flan..
Guide Price: £57.27
£68.72 inc VAT
3mm JCW Impacta 4551 Mat
Guide Price
Brand: JCW Model and Size: 1.05x20m - 21.00m2
Delivery Time: 2 - 3 working days
3mm JCW Impacta 4551 Mat is an impact sound bonded surface layer for concrete floors made from recycled rubber bonded with cork granulate. It is suitable beneath most floor finishes e.g. laminate, carpet, vinyls and ceramic tiles. Impacta Mat 3mm provides a good Impact Reduction for refurbishment pr..
Guide Price: £177.48
£212.98 inc VAT
Brand: CMS Danskin Acoustics Model and Size: 1.15x20m - 23.00m2
Delivery Time: 3 - 5 days
3mm Regupol 4515 Eco soundproof underlay roll is a general purpose acoustic underlayment manufactured from a combination of cork granules and rubber granulate, designed to reduce the effect of impact sound at source on all types of subfloor. This tough, resilient, low cost underlayment can insulate ..
Guide Price: £179.94
£215.93 inc VAT
Brand: CMS Danskin Acoustics Model and Size: 1x20m - 20.00m2
Delivery Time: 3 - 5 days
3mm Regupol 4515 (Sonus Multi 3) is a tough resilient acoustic underlay manufactured from polyurethane (PUR) foam and cork granules and is ideally suited to all new build type constructions to comply with Part E 2003 and can be bonded to all types of floors, including ceramic tiles sheet vinyl and v..
Guide Price: £182.67
£219.20 inc VAT
50mm JCW Acoustic Batten 50C
Guide Price
Brand: JCW Model and Size: 50x42x1800mm
Delivery Time: 2 - 3 working days
JCW Acoustic Batten 50C is a 10mm pre bonded open cell, recycled polyurethane resilient layer to a 40mm timber batten for use on concrete subfloors. The JCW Acoustic Batten 50C offers an exceptional reduction in impact sound, whilst maintaining a high compression strength. They can be overlaid with ..
Guide Price: £6.43
£7.72 inc VAT
50mm Superglass Superwall 36 Cavity Wall Batt (pack of 16) 50mm Superglass Superwall 36 Cavity Wall Batt (pack of 16)
Guide Price
Brand: Superglass Model and Size: 1200x455mm - 8.74m2
Delivery Time: 1 - 2 days
50mm Superwall 36 Cavity Wall Batt is a lightweight, non-combustible, unfaced glass mineral wool batt for use as full or partial fill insulation in new external masonry cavity walls up to 25 m in height in domestic and non-domestic buildings. Superwall 36 is manufactured from nearly 84% recycled gla..
52mm JCW Acoustic Quilt - 600mm wide
Guide Price
Brand: JCW Model and Size: 5000x600mm - 3.00m2
Delivery Time: 2 - 3 working days
52mm JCW Acoustic Quilt is a premium partition insulation roll for walls manufactured by sandwiching a 2mm acoustic barrier membrane between 2 layers of 25mm mineral wool. The sound barrier properties of the acoustic membrane are complemented and enhanced by the absorption qualities of the mineral w..
Guide Price: £74.49
£89.39 inc VAT
Brand: JCW Model and Size: 1.05x10m - 10.50m2
Delivery Time: 2 - 3 working days
5mm JCW Impacta Rubber Roll is Sound Insulation System for concrete floors, robust resilient under screed layer system. It is suitable for precast and solid concrete floors (minimum weight 300kg/m2). JCW Impacta Rubber is a tough, puncture-proof, heavy material designed for the professional buildin..
Guide Price: £93.82
£112.58 inc VAT
Brand: JCW Model and Size: 5mm x 150mm - Free Delivery
Delivery Time: 2 - 3 working days
5mm JCW Perimeter Edging Strip is a foam strip to isolate acoustic flooring from perimeter walls and maintain the acoustic integrity of the structure. For use with Acoustic Battens, Acoustic Cradles and Acoustic Decks.APPLICATIONTo isolate acoustic flooring from perimeter walls CERTIFICATIONIt has b..
Guide Price: £48.73
£58.48 inc VAT
JCW Perimeter Edging L-Strip - 2m - Flanking Band
Guide Price
Brand: JCW Model and Size: 53x23x2000mm
Delivery Time: 2 - 3 working days
JCW Perimeter Edging L-Strip is a 2m pre-formed foam angle strip to isolate acoustic flooring from perimeter walls. It also maintains the acoustic integrity of the structure.APPLICATIONTo isolate acoustic flooring from perimeter wallsCERTIFICATIONIt has been independently tested in a UKAS accredited..
Guide Price: £1.55
£1.86 inc VAT
Brand: JCW Model and Size: 1000x30mm
Delivery Time: 2 - 3 working days
6mm JCW Impactalay Gripper Strip is an easy fitting device to prevent Impactlay plus from sliding and bunching. The JCW Impactalay plus must be installed alongside rubber JCW Perimeter Strips. It can be used on concrete, timber sub floors and stairs. Easily cut to size and simple to fit Provides a n..
Guide Price: £1.68
£2.02 inc VAT
Brand: Superglass Model and Size: 1200x455mm - 4.37m2
Delivery Time: 1 - 2 days
75mm Superglass Superwall 32 Cavity Batt is a lightweight, non-combustible, unfaced glass mineral wool batt for use as full or partial fill insulation in new external masonry cavity walls up to 25 m in height in domestic and non-domestic buildings. Superwall 32 is manufactured from nearly 84% recycl..
Guide Price: £47.20
£56.64 inc VAT
Brand: CMS Danskin Acoustics Model and Size: 15kg
Delivery Time: 1 - 2 days
CMS Bond 100 is a solvent free, low VOC, high performance water based acrylic dispersion with very good bond strength. It is suitable for plasticized vinyl floor coverings (including PVC tiles) together with high density foam backed carpets and for products such as Regupol 3912 Acoustic Underlayment..
Brand: JCW Model and Size: JCW Cradle
Delivery Time: 2 - 3 working days
JCW Acoustic Level Pod Cradle is an integral part of the JCW Acoustic Cradle and Batten System that can be used on both timber and concrete subfloors. It also can be used separately. This system is ideal for levelling uneven subfloors and can accommodate levels varying from 55mm to in excess of 300m..
Guide Price: £136.64
£163.97 inc VAT
Brand: JCW Model and Size: JCW ASFP - 62.40m2
Delivery Time: 2 - 3 working days
JCW Acoustic Screed Foam Pack is a complete concrete floor under screed resilient layer pack containing JCW Acoustic Screed Foam, JCW Acoustic Flanking Strip and JCW Acoustic Flanking Strip. This is a big value acoustic foam pack which reduces impact and airborne noise on concrete floors. Acoustic ..
Guide Price: £256.86
£308.23 inc VAT
JCW Acoustic Sealant - 310ml
Guide Price
Brand: JCW Model and Size: JCW Acoustic Sealant
Delivery Time: 2 - 3 working days
JCW Acoustic Sealant is a high strength, permanently flexible white acoustic sealant and adhesive specifically formulated for sealing and bonding plasterboard. It is ideal for sealing the edges of plasterboard systems and filling and sealing any holes where services have been installed, thereby..
Guide Price: £3.09
£3.71 inc VAT
Brand: JCW Model and Size: JCW Black Cloth Tape
Delivery Time: 2 - 3 working days
JCW Black Cloth Jointing Tape is the ideal jointing tape for all rubber based acoustic flooring materials like JCW Impactalay, JCW Impactalay Plus and JCW Impacta 4551. It will help hold together any butt joints and prevent any possible movement where two pieces of rubber based material are joined t..
Guide Price: £8.17
£9.80 inc VAT
Brand: JCW Model and Size: Single x 35mm deep
Delivery Time: 2 - 3 working days
Single x 35mm deep JCW Fire and Acoustic Socket Box Insert is an acoustic insulation system for wall sockets to eliminate the transfer of sound through walls. Suitable for both new installations and refurbishments, available for both single, double and twin-gang applications. Fabricated from Class O..
Guide Price: £3.40
£4.08 inc VAT
Brand: JCW Model and Size: 15 litre
Delivery Time: 2 - 3 working days
JCW Impacta Flooring Adhesive is a specially formulated adhesive for JCW Impacta rubber and mats. Impacta adhesive has a special additive to prevent plastaciser migration of rubber into finish floor covering's like Vinyl etc.APPLICATIONNew buildRefurbishmentsDomestic upgradeCan be bonded to all type..
Guide Price: £45.51
£54.61 inc VAT
100mm Isoroc Isofas Mineral Wool Insulation Slab - 1000mm x 600mm (pack of 3)
Guide Price
Brand: Isoroc Model and Size: 1000mm x 600mm - 1.8m2
Delivery Time: 1 - 2 days
100mm Isoroc Isofas Mineral Wool Insulation Slab is a reliable and durable non-flammable insulation solution for universal use. These slabs can be used in external and internal wall insulation as thermal, acoustic and fire insulation. They can be used as a barrier for fire protection...
Guide Price: £41.00
£49.20 inc VAT
Brand: URSA Model and Size: 9500x1140mm - 10.83m2
Delivery Time: 1 - 2 days
100mm URSA 10 Loft Roll is a lightweight, non-combustible, unfaced glass mineral wool products for use as loft insulation in cold pitched roofs. URSA 10 Loft roll is perforated to allow it to be split into 2 x 570mm wide rolls to match the format for use between joists at 600mm centres. CHARACTER..
Guide Price: £34.94
£41.93 inc VAT
Brand: Cellecta Model and Size: 600x1200mm - 0.72m2
Delivery Time: 3 - 5 days
Cellecta Fibrefon 10  is 10mm thick acoustic resilient layer insulation made of wood fibre for concrete floors, giving substantial acoustic characteristics. This resilient layer ensures that Cellecta Screedboard 20 covered underfloor heating complies with acoustic performance sta..
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