Don’t Reduce Performance. Engineer It Thinner.
Quiet Qurl® 013 MT delivers equal or superior acoustic performance in a 7/8″ floor assembly—up to 3/8″ thinner than typical sound mat systems—while maintaining the STC, IIC, and HIIC ratings required for modern multifamily construction.
Achieve premium impact noise control while requiring only a 3/4″ gypsum pour—saving up to 25% on underlayment material and pumping labor.
Talk to a Keene technical rep about your project.
Total System Depth
With Glue-Down LVT
Consistent Rating
Min. Topping Required
Many acoustic floor systems depend on thick sound mats and deep gypsum pours to meet the IIC ratings required for multifamily construction. These assemblies increase material costs, add weight, and extend installation timelines.
When projects undergo value engineering, flooring acoustics are often reduced to cut costs. Quiet Qurl® 013 MT removes that compromise. Engineered with advanced Muffling Technology, it delivers high IIC performance in a thinner profile, allowing for reduced gypsum depth, lower floor heights, and faster installation without sacrificing sound control.
Quiet Qurl 013 MT gives architects and contractors a smarter solution—meeting acoustic performance requirements while lowering costs, simplifying assemblies, and keeping projects on schedule.
Quiet Qurl® 013 MT was engineered to deliver high acoustic performance with less material and less thickness.
Quiet Qurl 013 MT improves the mass-spring-mass system, allowing the floor assembly to be up to 3/8″ thinner while still achieving equal or better sound performance
Keene System Components:
The market-standard competitor offering is a 1/4″ sound mat with 1″ topping — a 1-1/4″ system. Quiet Qurl® 013 MT delivers equal or superior ratings at just 7/8″ above the subfloor. Same structural assembly. Less material. Better results.
Acoustic Performance — Lab Test Data:
| FINISH FLOOR | KEENE QQ 013 MT 3/4″ TOPPING · 7/8″ SYSTEM | USG SAM N-25 (1/4″) 1″ TOPPING · 1-1/4″ SYSTEM | MAXXON ACOUSTI-MAT II 1″ TOPPING · 1-1/4″ SYSTEM | ||||||
|---|---|---|---|---|---|---|---|---|---|
| STC | IIC | HIIC | STC | IIC | HIIC | STC | IIC | HIIC | |
| Bare Floor | 60 | 57 | 58 | 60 | 55 | 55 | 59 | 53 | — |
| Laminate / LVT | 60 | 58 | 61 | 60 | 56 | 57 | 59 | 55 | — |
| LVT w/ Attached Pad | 60 | 60 | 69 | 60 | 58 | 68 | 59 | 54 | — |
| Glue-Down LVT (5–6.5mm) | 60 | 61 | 74 | 60 | 57 | 68 | — | — | — |
Sources: Keene Test Q4364.01A (Aug 2023) | USG Test M9459.01-113-11-R0 (Laminate finish floor) | Maxxon Test I0101.14. All systems tested on 18″ open web truss, R-13 batt insulation, RC Deluxe 16″ o.c. ceiling. “—” indicates data not available for that configuration.
At 7/8″ total system depth above subfloor, QQ 013 MT gives architects and GCs critical vertical space back — without redesigning the building.
3/4″ minimum topping means significantly less weight per square foot compared to 1″+ topping systems, reducing structural load requirements.
With HIIC ratings reaching 74 on glue-down LVT, QQ 013 MT meets or exceeds what competitors deliver with thicker, heavier assemblies.
A thinner mat and less topping material means lower material cost per square foot — without giving anything back on performance. That’s the efficiency argument in numbers.
MT enhances the spring layer within the mass-spring-mass system — achieving up to +5 IIC improvement over standard Quiet Qurl 013 without adding thickness.
Tested with bare slab, click-lock LVP, LVT with pad, and glue-down LVT — the full range of finish floors commonly specified in multi-family projects.
Explore five multi-family residential projects that utilized Quiet Qurl 013 MT to improve acoustic performance with a thinner, more efficient floor assembly.
QQ 013 MT installed: 151,513 sq ft
QQ 013 MT installed: 137,381 sq ft
QQ 013 MT installed: 102,008 sq ft
QQ 013 MT installed: 42,096 sq ft
QQ 013 MT installed: 111,701 sq ft
Talk to a Keene technical representative. Our team can review assemblies, compare performance data, and help ensure your project meets acoustic requirements.
Independent lab testing for our acoustical flooring assemblies are available on request.
