Acoustics

Ecore Flooring makes it easy to address your acoustical concerns, while using surfaces with an attractive finish.

There are two types of acoustical problems that can be addressed with your flooring:
Sound Transmission and Interior Room Acoustics.

Sound Transmission

For problems with sound being transmitted from one space to another (usually from upstairs to downstairs) we consider IIC and STC ratings.

IIC Ratings

Impact Insulation Class

IIC ratings are related to structure-borne sound transmission and can be greatly affected by the flooring.

Acoustical underlayments and floor coverings will improve the IIC rating according to their physical material properties. More rigid materials will be less effective than ones that offer some internal damping or soft/fibrous materials. Keep in mind that:

  • No single floor underlayment or floor covering carries an absolute IIC rating by itself.
  • The product's rating is always dependent on the rest of the floor-ceiling assembly.
  • When comparing various products, make sure you compare ratings which were the result of comparable test assemblies.
    In other words: don't compare Product A tested on a 8" slab with a gypsum board ceiling to Product B tested on a wood truss assembly with no ceiling.

Fitness Flooring Life Cycle

When subject to repeated impacts
Photo of person sitting in an art museum
NRC rating is a measure of how absorptive a finish is, or how much sound is absorbed by a finish when the sound comes in contact with it.
NRC Ratings

Noise Reduction Coefficient

  • Interior Room Acoustics: For problems regarding theacoustics within a single room, NRC ratings will be most relevant.
  • NRC ratings are given in a decimal format from 0 to 1. The higher the number the more absorptive it is.
  • Smooth surface flooring typically carries a lower NRC rating (usually below 0.20) and is not as absorptive as acoustical wall or ceiling panels
  • NRC ratings can still be helpful to consider when designing a space

Our Surfaces Measure Up

All results below tested over 6" slab with no ceiling
Frequency (Hz)

Below you will find baseline acoustical data for our products. For more information or for ratings on alternate assemblies please contact Ecore's Technical Services department.

Tip: When reviewing test results below, keep in mind that a standard 6" thick concrete slab is generally expected to achieve an IIC rating of 28 with no floor covering or ceiling below.

Product
IIC
STC
ΔIIC
NRC
8mm Everlast
53
54
22
0.10
Bounce
54
51
23
0.10
Motivate
54
53
24
0.15
Rally
59
52
28
0.15
Beast
53
54
22
0.05
Monster
58
53
29
0.10
1" Ultra
56
52
27
0.20
2.5" SmashTile
58
51
26
0.20
Product
IIC
STC
ΔIIC
NRC
Beast
53
54
22
0.05
Monster
58
53
29
0.10
1" Ultra
56
52
27
0.20
2.5" SmashTile
58
51
26
0.20
8mm Everlast
53
54
22
0.10
Bounce
54
51
23
0.10
Motivate
54
53
24
0.15
Rally
59
52
28
0.15
Product
IIC
STC
ΔIIC
NRC
Motivate
54
53
24
0.15
Rally
59
52
28
0.15
Beast
53
54
22
0.05
Monster
58
53
29
0.10
1" Ultra
56
52
27
0.20

Because at Ecore we believe less noise is MORE.