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Impactafoam is designed to form a resilient layer reducing impact noise transmission in concrete and timber floors. Impactafoam is an inert cross-linked closed-cell polyethylene foam, therefore providing a vapour barrier with good compression strength.
Weighted impact sound pressure level (L) ISO 717 Impactafoam laid onto a structural floor of mass 384kgm2 with screed laid over.
50mm screed Lnw=61dB
70mm screed Lnw=60dB
100mm screed Lnw=58dB
Test carried out at acoustical House EMPA, Dübendorf. Date of test 18.5.88
ISO 140-8 1998 Reduction of impact sound pressure level (?L) ISO 717-2 1997 Impactafoam laid onto a structural concrete floor with 6.8mm laminated floor laid over
?Lw 22dB
Test carried out at Sound Research Laboratories Sudbury, Suffolk date of test 15.1.01.
In a concrete construction, Impactafoam is laid as a membrane between a structural concrete floor of mass 300Kg/m2 and the finishing screed. For a raft floor construction Impactafoam batten strips are applied to the underside of the timber battens. In a conventional timber construction self adhesive batten strips are easily applied to the top of the floor joists. This forms a resilient layer between the joists and the boarding, reducing impact noise.
For full installation guidance, acoustic data and product specifications, please download the Impactafoam datasheet. If you are unable to find the information you need, please email your query to info@soundreduction.co.uk or call 01204 380074 for further assistance.
This product can be purchased directly from SRS. If you would like a quotation or would like to place an order please contact our friendly and efficient sales department for prompt assistance.
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Request a product sample hereOur professional, Institute of Acoustics registered technical department is on hand to give advice on all of our high performance acoustic products. We're delighted to offer advice on any noise problem, be it a sound insulation or sound absorption issue.
Sound Reduction Systems Ltd (SRS) are expert manufacturers of high performance sound insulation and sound absorption products for use within buildings. With over 40 years experience in the acoustic supply industry and IOA accredited technical staff SRS can offer expert advice on any noise problem
Sound Reduction Systems Ltd
Adam Street, Off Lever Street
Bolton
Lancashire
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