Serenity Ultimate Carpet Underlay™
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Serenity Ultimate Underlay™ is the perfect solution and easy to install. Great for both impact and ambient noise. Good for new or restoration projects. Compatible with all carpet types. It adds mass to a wood floor assembly along with flexibility. Serenity Ultimate Underlay™ is made from 93% post consumer product which translates to important LEED points for you. Great solution for noise from above or below. You can use Serenity Ultimate Underlay™ without compromising your existing floor. |
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Serenity Ultimate Underlay™ is available in both 9 and 11.5mm thicknesses. When requirements dictate more low frequency blocking 11.5mm is highly recommended for optimum performance. This adds 28% more mass thus giving more sound protection.
Performance Data: Soundproofing Carpet Underlay

| Frequency (Hz) | 125 | 250 | 500 | 1000 | 2000 | 4000 | STC |
|---|---|---|---|---|---|---|---|
| Performance Carpet Underlay | 16 | 17 | 23 | 29 | 34 | 37 | 27 |
| Ultimate Carpet Underlay | 17 | 21 | 25 | 33 | 38 | 43 | 32 |
| Premium Carpet Underlay | 19 | 22 | 27 | 34 | 38 | 43 | 32 |
Specifications
| Type: | Serenity Ultimate Carpet Underlay |
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| Thickness: | 9mm (.354") 11.5mm (.453") |
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| Weight: | 9mm (1.5 lb per sq/ft) 11.5mm (2 lb per sq/ft) |
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| Roll Size: | 4.5' x 25' (100 sq. ft.) |
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