{"product_id":"soundlay-plus-15mm-acoustic-underlay","title":"Soundlay Plus 15mm Acoustic Underlay","description":"\u003ch1 data-section-id=\"8yz0yz\" data-start=\"120\" data-end=\"191\" class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e15mm Acoustic Floor Underlay for Impact and Airborne Noise Reduction\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp data-start=\"193\" data-end=\"364\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong data-start=\"193\" data-end=\"233\"\u003eSoundlay Plus 15mm 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\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"366\" data-end=\"597\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eEach sheet measures \u003cstrong data-start=\"386\" data-end=\"412\"\u003e1200mm x 1200mm x 15mm\u003c\/strong\u003e and covers \u003cstrong data-start=\"424\" data-end=\"434\"\u003e1.44m²\u003c\/strong\u003e. The product is suitable for timber and concrete floor applications where footfall noise, vibration transfer and sound movement through floors need to be reduced.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"599\" data-end=\"844\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSoundlay Plus 15mm uses a laminated acoustic construction, combining dense acoustic barrier layers with a resilient foam core. This helps control impact noise while also adding mass to support airborne sound reduction through the floor build-up.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"846\" data-end=\"1133\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eIt is commonly used in \u003cstrong data-start=\"869\" data-end=\"952\"\u003eflats, houses, offices, refurbishment projects and floor soundproofing upgrades\u003c\/strong\u003e. It can be used below carpet and may also be suitable below laminate, vinyl or timber flooring when installed with the correct supporting layer and full floor system specification.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1135\" data-end=\"1420\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eFor best results, Soundlay Plus 15mm should be installed as part of a complete acoustic floor treatment. \u003cstrong data-start=\"1240\" data-end=\"1351\"\u003ePerimeter isolation, tight joints, correct 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\/span\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"1422\" data-end=\"1437\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"1439\" data-end=\"1931\"\u003e\n\u003cli data-section-id=\"1q2k14t\" data-start=\"1439\" data-end=\"1473\" style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong data-start=\"1441\" data-end=\"1473\"\u003e15mm acoustic floor underlay\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"1khyqpn\" data-start=\"1474\" data-end=\"1529\" style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eHelps reduce impact noise from footsteps and movement\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"1rmh37m\" data-start=\"1530\" data-end=\"1589\" style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eCan help improve airborne sound insulation through floors\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"1cebsii\" data-start=\"1590\" data-end=\"1643\" style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSuitable for timber and concrete floor applications\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"1q1u016\" data-start=\"1644\" data-end=\"1683\" style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eDense laminated acoustic construction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"1chprx\" data-start=\"1684\" data-end=\"1731\" style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSuitable for domestic and commercial projects\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"ghcdj9\" data-start=\"1732\" data-end=\"1761\" style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eEasy to cut and fit on site\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"37um86\" data-start=\"1762\" data-end=\"1821\" style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eCan be used below carpet and selected hard floor finishes\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"87q1ue\" data-start=\"1822\" data-end=\"1852\" style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eEach sheet covers \u003cstrong data-start=\"1842\" data-end=\"1852\"\u003e1.44m²\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"13zc45\" data-start=\"1853\" data-end=\"1931\" style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eUseful for flats, bedrooms, living rooms, offices and refurbishment projects\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"1cgu054\" data-start=\"1933\" data-end=\"1960\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"1962\" data-end=\"2580\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong data-start=\"1962\" data-end=\"1974\"\u003eProduct:\u003c\/strong\u003e Soundlay Plus 15mm Acoustic Underlay\u003c\/span\u003e\u003cbr data-start=\"2011\" data-end=\"2014\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong data-start=\"2014\" data-end=\"2029\"\u003eSheet size:\u003c\/strong\u003e 1200mm x 1200mm\u003c\/span\u003e\u003cbr data-start=\"2045\" data-end=\"2048\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong data-start=\"2048\" data-end=\"2062\"\u003eThickness:\u003c\/strong\u003e 15mm\u003c\/span\u003e\u003cbr data-start=\"2067\" data-end=\"2070\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong data-start=\"2070\" data-end=\"2083\"\u003eCoverage:\u003c\/strong\u003e 1.44m² per sheet\u003c\/span\u003e\u003cbr data-start=\"2100\" data-end=\"2103\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong data-start=\"2103\" data-end=\"2114\"\u003eWeight:\u003c\/strong\u003e 23kg per sheet\u003c\/span\u003e\u003cbr data-start=\"2129\" data-end=\"2132\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong data-start=\"2132\" data-end=\"2150\"\u003eWeight per m²:\u003c\/strong\u003e 16.1kg\/m²\u003c\/span\u003e\u003cbr data-start=\"2160\" data-end=\"2163\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong data-start=\"2163\" data-end=\"2180\"\u003eConstruction:\u003c\/strong\u003e 3-ply laminated acoustic mat\u003c\/span\u003e\u003cbr data-start=\"2209\" data-end=\"2212\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong data-start=\"2212\" data-end=\"2221\"\u003eCore:\u003c\/strong\u003e Closed-cell PE foam core with acoustic barrier layers\u003c\/span\u003e\u003cbr data-start=\"2275\" data-end=\"2278\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong data-start=\"2278\" data-end=\"2291\"\u003eMain use:\u003c\/strong\u003e Floor impact and airborne noise reduction\u003c\/span\u003e\u003cbr data-start=\"2333\" data-end=\"2336\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong data-start=\"2336\" data-end=\"2361\"\u003eSuitable floor types:\u003c\/strong\u003e Timber and concrete floors\u003c\/span\u003e\u003cbr data-start=\"2388\" data-end=\"2391\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong data-start=\"2391\" data-end=\"2416\"\u003eTypical applications:\u003c\/strong\u003e Flats, houses, offices, refurbishments and floor upgrades\u003c\/span\u003e\u003cbr data-start=\"2474\" data-end=\"2477\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong data-start=\"2477\" data-end=\"2502\"\u003eFinal floor finishes:\u003c\/strong\u003e Carpet directly; laminate, vinyl or timber subject to correct system build-up\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"126a13c\" data-start=\"2582\" data-end=\"2605\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eAcoustic Performance\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2607\" data-end=\"2769\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSoundlay Plus 15mm can help reduce impact noise and improve airborne sound performance when installed as part of a suitable tested floor and ceiling construction.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2771\" data-end=\"3014\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003ePublished acoustic figures should only be treated as \u003cstrong data-start=\"2824\" data-end=\"2846\"\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\/span\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"16dprsq\" data-start=\"3016\" data-end=\"3037\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eInstallation Notes\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"3039\" data-end=\"3196\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eInstall Soundlay Plus 15mm over a \u003cstrong data-start=\"3073\" data-end=\"3111\"\u003eclean, dry and level floor surface\u003c\/strong\u003e. Sheets should be laid tightly together with butt joints and no gaps between boards.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"3198\" data-end=\"3397\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\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\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"3399\" data-end=\"3662\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\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\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"3664\" data-end=\"3861\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\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\/span\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"1hryhf7\" data-start=\"3863\" data-end=\"3869\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eFAQ\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3 data-section-id=\"keen5o\" data-start=\"3871\" data-end=\"3911\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eWhat is Soundlay Plus 15mm used for?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"3913\" data-end=\"4034\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSoundlay Plus 15mm is used to reduce impact noise and help improve airborne sound insulation through floor constructions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"o0mjl8\" data-start=\"4036\" data-end=\"4064\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eWhat size is each sheet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"4066\" data-end=\"4135\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eEach sheet measures \u003cstrong data-start=\"4086\" data-end=\"4112\"\u003e1200mm x 1200mm x 15mm\u003c\/strong\u003e and covers \u003cstrong data-start=\"4124\" data-end=\"4134\"\u003e1.44m²\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"lwarf4\" data-start=\"4137\" data-end=\"4165\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eHow heavy is each sheet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"4167\" data-end=\"4239\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eEach sheet weighs approximately \u003cstrong data-start=\"4199\" data-end=\"4207\"\u003e23kg\u003c\/strong\u003e, equal to around \u003cstrong data-start=\"4225\" data-end=\"4238\"\u003e16.1kg\/m²\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"t4zj4h\" data-start=\"4241\" data-end=\"4273\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eCan it be used under carpet?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"4275\" data-end=\"4389\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eYes. It can be used below carpet. Carpet grippers should be isolated where required to avoid rigid contact points.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1dmqjdt\" data-start=\"4391\" data-end=\"4444\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eCan it be used under laminate or engineered wood?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"4446\" data-end=\"4613\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\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\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1gmdrqa\" data-start=\"4615\" data-end=\"4650\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eIs this the same as Hushlay 15?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"4652\" data-end=\"4814\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eNo. It is a similar type of 15mm acoustic matting product, but it should be kept separate from Hushlay 15 unless your supplier confirms they are the same product.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1sloxua\" data-start=\"4816\" data-end=\"4840\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eDoes it meet Part E?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"4842\" data-end=\"5073\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\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 complete floor and ceiling construction, installation quality and flanking noise control.\u003c\/span\u003e\u003c\/p\u003e","brand":"Soundproofing King","offers":[{"title":"Default Title","offer_id":52422055199059,"sku":null,"price":38.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1012\/0360\/7891\/files\/Screenshot2026-07-09223726.png?v=1783633070","url":"https:\/\/soundproofingking.co.uk\/products\/soundlay-plus-15mm-acoustic-underlay","provider":"Soundproofing King","version":"1.0","type":"link"}