Acoustical Testing

Accurate, independent third party testing is critical to meet the regulatory requirements of green construction codes for all types of buildings. At U.S. Rubber we take the growing concern regarding the effect sound has on human performance and living conditions seriously. Please see the summary matrix below and click on the green button to explore our library of test results conducted by Intertek.

Impact insulation class (IIC) is an integer-number rating of how well a building floor attenuates impact sounds, such as footsteps. A higher number means more attenuation. One should note, however, that all IIC ratings are not equal. When comparing the acoustical performance of QuietSound® to other acoustical underlayments, it is critical to note the composition of the products (e.g., rubber (resilient), cork (not resilient) or foam (not resilient)) and the subfloor/flooring assembly of the testing. Unless the test assemblies are identical, it’s an “apples to oranges” comparison that will yield an inaccurate conclusion.

Acoustical Underlayment Testing

An IIC rating of 50 and above is most common in building code and HOA requirements.

The Delta IIC rating is the best sound rating to consider when comparing the performance of different types of underlayment. It keeps the manufacturers from promoting misleading results obtained by using materials or methods of isolation that the average assembly does not use. This test is only relevant for concrete subfloors.

Please see the summary matrix below and click on the green button to explore our library of test results conducted by Intertek.

Underlayment Flooring Type Description STC IIC ΔIIC
Reports #
2mm QuietSound®  Hardwood 2mm quick step wood plank flooring 51 56 23 J6659.02‐303‐11
LVT 2.05mm Shaw Luxury Vinyl Plank 57 50 19 J9499.01‐303‐11
3mm QuietSound® LVT 8.2mm Max Core by Provenza 62 67 N/A H4163.04‐303‐11
LVT 8.2mm Max Core by Provenza 54 56 23 H4163.11‐303‐11
LVT 8.2mm Max Core by Provenza 61 65 N/A H4163.16‐303‐11
LVT 8.2mm Max Core by Provenza 51 54 24 H4163.23‐303‐11
LVT 3.93mm Shaw Luxury Vinyl Plank 55 57 23 J9498.01‐303‐11
Tile 7.98mm Daltile Ceramic Tile 63 62 N/A H4163.09‐303‐11
Tile 8mm Daltile Ceramic Tile 57 49 18 H4163.10‐303‐11
Tile 7.98mm Daltile Ceramic Tile 63 62 N/A H4163.21‐303‐11
Tile 7.98mm Daltile Ceramic Tile 54 47 19 H4163.22‐303‐11
Tile 7.98mm Daltile Ceramic Tile 56 50 18 H4163.32‐303‐11
Tile 7.98mm Daltile Ceramic Tile 55 46 17 H4163.33‐303‐11
5mm QuietSound® Hardwood 15.3mm Old World by Provenza 63 65 N/A H4163.08‐303‐11
Hardwood 14.4mm UA Floors Parisian Collection Oak Engineered Wood Floor 53 52 22 I6748.01‐303‐11
Hardwood 6.77mm Quick Step Wood Plank Flooring 53 57 24 J6659.01‐303‐11
LVT 8.05mm Armstrong Luxe Plank Luxury Vinyl Flooring 54 53 21 H3852.01‐303‐11
LVT 8.05mm Armstrong Luxe Plank Luxury Vinyl Flooring 54 54 22 H3852.02‐303‐11
LVT 8.18mm Max Core by Provenza 53 58 24 H4163.01‐303‐11
LVT 8.2mm Max Core by Provenza 62 67 N/A H4163.05‐303‐11
LVT 8.2mm Max Core by Provenza 60 66 N/A H4163.17‐303‐11
LVT 8.2mm Max Core by Provenza 50 55 24 H4163.25‐303‐11
LVT 7.8mm Paradigm Extruded Waterproof Core Luxury 55 43 N/A I5320.01‐303‐11
Tile 8mm Daltile Ceramic Tile 56 51 19 H4163.02‐303‐11
Tile 8mm Daltile Ceramic Tile 63 66 N/A H4163.03‐303‐11
Tile 8mm Daltile Ceramic Tile 55 46 18 H4163.14‐303‐11
Tile 7.98mm Daltile Ceramic Tile 63 51 N/A H4163.15‐303‐11
9mm QuietSound® Hardwood 15.3mm Old World by Provenza 60 49 N/A H4163.18‐303‐11
Hardwood 12.3mm Affinity Engineered Hardwood by Provenza 57 52 19 H4163.30‐303‐11
Hardwood 15.3mm Old World by Provenza 60 53 N/A H4163.34‐303‐11
Tile 7.73mm Daltile Porcelain Tile 56 52 N/A J6402.01‐303‐11
10mm QuietSound® Hardwood 10.48mm Heriloom Engineered Hardwood by Provenza 63 65 N/A H4163.06‐303‐11
Hardwood 15.14mm Studio Moderno Engineered Wood by Provenza 55 51 18 H4163.12‐303‐11
Hardwood 15.3mm Old World by Provenza 62 61 N/A H4163.19‐303‐11
Hardwood 15.3mm Old World by Provenza 54 49 20 H4163.26‐303‐11
Hardwood 15.07mm Volterra Engineered Hardwood by Provenza 60 48 N/A H4163.28‐303‐11
Hardwood 15.4mm Brentwood White Oak Plank 57 52 19 J1061.01‐303‐11
Hardwood 15.4mm Brentwood White Oak Plank 56 54 21 J1063.01‐303‐11
Tile 7.7mm Daltile Porcelain Tile 54 50 N/A J6402.02‐303‐11
12mm QuietSound® Hardwood 15.3mm Old World by Provenza 63 64 N/A H4163.07‐303‐11
Hardwood 15.3mm Old World by Provenza 57 52 19 H4163.13‐303‐11
Hardwood 15.3mm Old World by Provenza 62 62 N/A H4163.20‐303‐11
Hardwood 15.3mm Old World by Provenza 55 49 19 H4163.27‐303‐11
Hardwood 15.3mm Old World by Provenza 60 50 N/A H4163.29‐303‐11
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