{"product_id":"soundlay-plus-12mm","title":"Soundlay Plus 12mm Acoustic Underlay","description":"\u003ch2 data-start=\"1737\" data-end=\"1808\" class=\"PDq2pG_selectionAnchorContainer\"\u003e12mm Acoustic Floor Underlay for Impact and Airborne Noise Reduction\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp data-start=\"1810\" data-end=\"1981\"\u003e\u003cstrong data-start=\"1810\" data-end=\"1850\"\u003eSoundlay Plus 12mm Acoustic Underlay\u003c\/strong\u003e is a dense acoustic floor mat designed to reduce impact noise and help improve airborne sound insulation through floor structures.\u003c\/p\u003e\n\u003cp data-start=\"1983\" data-end=\"2209\"\u003eEach sheet measures \u003cstrong data-start=\"2003\" data-end=\"2029\"\u003e1200mm x 1200mm x 12mm\u003c\/strong\u003e and covers \u003cstrong data-start=\"2041\" data-end=\"2051\"\u003e1.44m²\u003c\/strong\u003e. The 12mm thickness makes it a practical option where you need acoustic improvement but want to keep floor height build-up lower than a thicker acoustic mat.\u003c\/p\u003e\n\u003cp data-start=\"2211\" data-end=\"2491\"\u003eSoundlay Plus 12mm uses a \u003cstrong data-start=\"2237\" data-end=\"2269\"\u003e2-ply laminated construction\u003c\/strong\u003e, combining a \u003cstrong data-start=\"2283\" data-end=\"2311\"\u003e3mm acoustic barrier mat\u003c\/strong\u003e with \u003cstrong data-start=\"2317\" data-end=\"2344\"\u003e9mm closed-cell PE foam\u003c\/strong\u003e. This helps reduce impact noise from footsteps and movement while also adding mass to support airborne sound reduction through the floor build-up.\u003c\/p\u003e\n\u003cp data-start=\"2493\" data-end=\"2736\"\u003eIt is suitable for \u003cstrong data-start=\"2512\" data-end=\"2554\"\u003etimber and concrete floor applications\u003c\/strong\u003e and is commonly used in flats, houses, offices, bedrooms, living rooms, studios and refurbishment projects where footfall noise and sound transfer through floors need to be reduced.\u003c\/p\u003e\n\u003cp data-start=\"2738\" data-end=\"3024\"\u003eFor best results, Soundlay Plus 12mm should be installed as part of a complete acoustic floor treatment. \u003cstrong data-start=\"2843\" data-end=\"2955\"\u003ePerimeter isolation, tight joints, suitable floor finish detailing and flanking noise control are important.\u003c\/strong\u003e Do not rely on the matting alone to solve all sound transfer issues.\u003c\/p\u003e\n\u003ch2 data-start=\"3026\" data-end=\"3041\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-start=\"3043\" data-end=\"3661\"\u003e\n\u003cli data-start=\"3043\" data-end=\"3077\"\u003e\u003cstrong data-start=\"3045\" data-end=\"3077\"\u003e12mm acoustic floor underlay\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"3078\" data-end=\"3133\"\u003eHelps reduce impact noise from footsteps and movement\u003c\/li\u003e\n\u003cli data-start=\"3134\" data-end=\"3193\"\u003eCan help improve airborne sound insulation through floors\u003c\/li\u003e\n\u003cli data-start=\"3194\" data-end=\"3242\"\u003eLower build-up than thicker 15mm acoustic mats\u003c\/li\u003e\n\u003cli data-start=\"3243\" data-end=\"3296\"\u003eSuitable for timber and concrete floor applications\u003c\/li\u003e\n\u003cli data-start=\"3297\" data-end=\"3336\"\u003e2-ply laminated acoustic construction\u003c\/li\u003e\n\u003cli data-start=\"3337\" data-end=\"3397\"\u003e3mm acoustic barrier mat bonded to 9mm closed-cell PE foam\u003c\/li\u003e\n\u003cli data-start=\"3398\" data-end=\"3443\"\u003eFlexible, easy to cut and simple to install\u003c\/li\u003e\n\u003cli data-start=\"3444\" data-end=\"3491\"\u003eSuitable for domestic and commercial projects\u003c\/li\u003e\n\u003cli data-start=\"3492\" data-end=\"3551\"\u003eCan be used below carpet and selected hard floor finishes\u003c\/li\u003e\n\u003cli data-start=\"3552\" data-end=\"3582\"\u003eEach sheet covers \u003cstrong data-start=\"3572\" data-end=\"3582\"\u003e1.44m²\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3583\" data-end=\"3661\"\u003eUseful for flats, bedrooms, living rooms, offices and refurbishment projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"3663\" data-end=\"3690\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cp data-start=\"3692\" data-end=\"4364\"\u003e\u003cstrong data-start=\"3692\" data-end=\"3704\"\u003eProduct:\u003c\/strong\u003e Soundlay Plus 12mm Acoustic Underlay\u003cbr data-start=\"3741\" data-end=\"3744\"\u003e\u003cstrong data-start=\"3744\" data-end=\"3759\"\u003eSheet size:\u003c\/strong\u003e 1200mm x 1200mm\u003cbr data-start=\"3775\" data-end=\"3778\"\u003e\u003cstrong data-start=\"3778\" data-end=\"3792\"\u003eThickness:\u003c\/strong\u003e 12mm\u003cbr data-start=\"3797\" data-end=\"3800\"\u003e\u003cstrong data-start=\"3800\" data-end=\"3813\"\u003eCoverage:\u003c\/strong\u003e 1.44m² per sheet\u003cbr data-start=\"3830\" data-end=\"3833\"\u003e\u003cstrong data-start=\"3833\" data-end=\"3844\"\u003eWeight:\u003c\/strong\u003e approximately 12.24kg per sheet\u003cbr data-start=\"3876\" data-end=\"3879\"\u003e\u003cstrong data-start=\"3879\" data-end=\"3897\"\u003eWeight per m²:\u003c\/strong\u003e approximately 8.5kg\/m²\u003cbr data-start=\"3920\" data-end=\"3923\"\u003e\u003cstrong data-start=\"3923\" data-end=\"3940\"\u003eConstruction:\u003c\/strong\u003e 2-ply laminated acoustic mat\u003cbr data-start=\"3969\" data-end=\"3972\"\u003e\u003cstrong data-start=\"3972\" data-end=\"3985\"\u003eBuild-up:\u003c\/strong\u003e 3mm acoustic barrier mat and 9mm closed-cell PE foam\u003cbr data-start=\"4038\" data-end=\"4041\"\u003e\u003cstrong data-start=\"4041\" data-end=\"4054\"\u003eMain use:\u003c\/strong\u003e Floor impact and airborne noise reduction\u003cbr data-start=\"4096\" data-end=\"4099\"\u003e\u003cstrong data-start=\"4099\" data-end=\"4124\"\u003eSuitable floor types:\u003c\/strong\u003e Timber and concrete floors\u003cbr data-start=\"4151\" data-end=\"4154\"\u003e\u003cstrong data-start=\"4154\" data-end=\"4179\"\u003eTypical applications:\u003c\/strong\u003e Flats, houses, offices, bedrooms, studios, refurbishments and floor upgrades\u003cbr data-start=\"4256\" data-end=\"4259\"\u003e\u003cstrong data-start=\"4259\" data-end=\"4284\"\u003eFinal floor finishes:\u003c\/strong\u003e Carpet directly; laminate, vinyl or timber subject to correct system build-up\u003c\/p\u003e\n\u003ch2 data-start=\"4366\" data-end=\"4389\"\u003eAcoustic Performance\u003c\/h2\u003e\n\u003cp data-start=\"4391\" data-end=\"4553\"\u003eSoundlay Plus 12mm can help reduce impact noise and improve airborne sound performance when installed as part of a suitable tested floor and ceiling construction.\u003c\/p\u003e\n\u003cp data-start=\"4555\" data-end=\"4798\"\u003ePublished acoustic figures should only be treated as \u003cstrong data-start=\"4608\" data-end=\"4630\"\u003esystem performance\u003c\/strong\u003e, not standalone product performance. Actual results will depend on the full floor build-up, ceiling construction, floor finish, workmanship and flanking noise control.\u003c\/p\u003e\n\u003cp data-start=\"4800\" data-end=\"5013\"\u003eTypical published system figures for Soundlay Plus 12mm are \u003cstrong data-start=\"4860\" data-end=\"4877\"\u003e48dB airborne\u003c\/strong\u003e and \u003cstrong data-start=\"4882\" data-end=\"4897\"\u003e49dB impact\u003c\/strong\u003e, based on a tested construction. These figures should not be treated as a guaranteed result for every installation.\u003c\/p\u003e\n\u003ch2 data-start=\"5015\" data-end=\"5036\"\u003eInstallation Notes\u003c\/h2\u003e\n\u003cp data-start=\"5038\" data-end=\"5195\"\u003eInstall Soundlay Plus 12mm over a \u003cstrong data-start=\"5072\" data-end=\"5110\"\u003eclean, dry and level floor surface\u003c\/strong\u003e. Sheets should be laid tightly together with butt joints and no gaps between boards.\u003c\/p\u003e\n\u003cp data-start=\"5197\" data-end=\"5396\"\u003eUse suitable perimeter isolation around walls, skirting lines, door thresholds, pipe penetrations and fixed structures. Rigid contact points can create flanking paths and reduce acoustic performance.\u003c\/p\u003e\n\u003cp data-start=\"5398\" data-end=\"5661\"\u003eFor carpet installations, isolate carpet grippers from the structural floor where required. For laminate, vinyl or engineered timber finishes, check whether a suitable timber board layer is required above the acoustic mat before installing the final floor finish.\u003c\/p\u003e\n\u003cp data-start=\"5663\" data-end=\"5860\"\u003eDo not mechanically fix through the acoustic layer unless the full system specification allows it. Fixings through the resilient layer can create rigid bridges and reduce soundproofing performance.\u003c\/p\u003e\n\u003ch2 data-start=\"5862\" data-end=\"5868\"\u003eFAQ\u003c\/h2\u003e\n\u003ch3 data-start=\"5870\" data-end=\"5910\"\u003eWhat is Soundlay Plus 12mm used for?\u003c\/h3\u003e\n\u003cp data-start=\"5912\" data-end=\"6033\"\u003eSoundlay Plus 12mm is used to reduce impact noise and help improve airborne sound insulation through floor constructions.\u003c\/p\u003e\n\u003ch3 data-start=\"6035\" data-end=\"6063\"\u003eWhat size is each sheet?\u003c\/h3\u003e\n\u003cp data-start=\"6065\" data-end=\"6134\"\u003eEach sheet measures \u003cstrong data-start=\"6085\" data-end=\"6111\"\u003e1200mm x 1200mm x 12mm\u003c\/strong\u003e and covers \u003cstrong data-start=\"6123\" data-end=\"6133\"\u003e1.44m²\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-start=\"6136\" data-end=\"6164\"\u003eHow heavy is each sheet?\u003c\/h3\u003e\n\u003cp data-start=\"6166\" data-end=\"6240\"\u003eEach sheet weighs approximately \u003cstrong data-start=\"6198\" data-end=\"6209\"\u003e12.24kg\u003c\/strong\u003e, equal to around \u003cstrong data-start=\"6227\" data-end=\"6239\"\u003e8.5kg\/m²\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-start=\"6242\" data-end=\"6274\"\u003eCan it be used under carpet?\u003c\/h3\u003e\n\u003cp data-start=\"6276\" data-end=\"6406\"\u003eYes. Soundlay Plus 12mm can be used below carpet. Carpet grippers should be isolated where required to avoid rigid contact points.\u003c\/p\u003e\n\u003ch3 data-start=\"6408\" data-end=\"6461\"\u003eCan it be used under laminate or engineered wood?\u003c\/h3\u003e\n\u003cp data-start=\"6463\" data-end=\"6630\"\u003eYes, but only with the correct supporting layer or floor system. Do not assume laminate or engineered timber can be laid directly on top without checking the build-up.\u003c\/p\u003e\n\u003ch3 data-start=\"6632\" data-end=\"6670\"\u003eCan it be used on concrete floors?\u003c\/h3\u003e\n\u003cp data-start=\"6672\" data-end=\"6792\"\u003eYes. Soundlay Plus 12mm can be used on concrete floors, subject to correct floor preparation and the final floor finish.\u003c\/p\u003e\n\u003ch3 data-start=\"6794\" data-end=\"6830\"\u003eCan it be used on timber floors?\u003c\/h3\u003e\n\u003cp data-start=\"6832\" data-end=\"6932\"\u003eYes. Soundlay Plus 12mm can be used on timber floors as part of a suitable acoustic floor treatment.\u003c\/p\u003e\n\u003ch3 data-start=\"6934\" data-end=\"6961\"\u003eIs 12mm or 15mm better?\u003c\/h3\u003e\n\u003cp data-start=\"6963\" data-end=\"7165\"\u003eThe \u003cstrong data-start=\"6967\" data-end=\"6975\"\u003e12mm\u003c\/strong\u003e version is better where floor height is limited. The \u003cstrong data-start=\"7029\" data-end=\"7037\"\u003e15mm\u003c\/strong\u003e version is heavier and better suited where stronger acoustic treatment is required and the extra thickness can be accommodated.\u003c\/p\u003e\n\u003ch3 data-start=\"7167\" data-end=\"7191\"\u003eDoes it meet Part E?\u003c\/h3\u003e\n\u003cp data-start=\"7193\" data-end=\"7420\"\u003eIt can help a floor system meet acoustic requirements, but it should not be sold as a standalone Part E guarantee. Performance depends on the full floor and ceiling construction, installation quality and flanking noise control.\u003c\/p\u003e","brand":"Soundproofing King","offers":[{"title":"Default Title","offer_id":54252228706643,"sku":null,"price":32.95,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1012\/0360\/7891\/files\/Screenshot2026-07-09162856.png?v=1783636660","url":"https:\/\/soundproofingking.co.uk\/products\/soundlay-plus-12mm","provider":"Soundproofing King","version":"1.0","type":"link"}