Save 25% off all foam & felt underlayments
 
 

Foam & Felt Underlayments

Affordable sound resistance with superb moisture resistance.

 
2mm

~2mm

Can be used under floating laminates, engineered woods, cork, bamboo, and vinyl.


Products SqFt IIC STC
LVT Total Comfort 3-in-1 $0.43 67 60
EZ-Floor 3-in-1 $0.54 69 66
QuietCure Ultraseal 3-in-1 $0.54 71 66
Black EVA 2-in-1 $0.60 66 69
FloorMat FanFold 3-in-1 $0.61 72 67
FloorMuffler Ultraseal 3-in-1 $0.70 74 73
FloorMuffler LVT 3-in-1 $0.82 71 66
3mm

3mm

Can be used under floating laminates, engineered woods, cork, bamboo, and vinyl.


Products SqFt IIC STC
White Eco-Foam 2-in-1 $0.30 62 63
Blue Combo 2-in-1 $0.35 51 52
Silent Silver 3-in-1 $0.49 72 73
Sound Blocker 3-in-1 $0.59 73 74
       
       
       
4mm

4mm

Underlay, moisture barrier, and sound reducer in one.


Products SqFt IIC STC
Premium Felt $0.38 67 66
       
       
       
       
       
       
12mm

12mm

Great under carpet as carpet padding.


Products SqFt IIC STC
Comfort Preferred $0.27 - -
Smart Cushion $0.49 - -
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Affordable sound resistance with superb moisture resistance.


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2-IN-1 This is an underlayment product + moisture barrier.
3-IN-1 This is an underlay + moisture barrier + added sound reduction.

 
 
 
 

Why Foam & Felt Underlayments?

Pros and Cons

pros:

  • Can be used under any floor.
  • Inexpensive underlay option.
  • Excellent moisture protection.
  • Mold and mildew resistant.
  • Is favorite under floating floors and carpet.
  • Reduces sound under laminates and hardwood floors.
  • Easy to install.

cons:

  • May not provide ideal sound resistance.
  • May allow telegraphing of sub floor.
 
 
 
 

Why Do I Need Underlayments?

Without Underlayment With Underlayment

Underlayment is an amazing invention created by the flooring gods out of necessity. Underlay has an impressive list of benefits, including: adding warmth to your floors so your feet aren’t so cold on new tile flooring, adding comfort and a slight ‘give’ underneath wood or vinyl floors, reduced sound transmission (great for houses with noisy teenagers!), as well as reducing in room step noise. This image is a very simplified example of using underlayment versus not using it, but as you can see the benefits greatly outweigh any reason not to.

 
 
 
 

IIC / STC RATINGS

IIC/STC Ratings

IIC stands for Impact Insulation Class, which refers to impact sounds such as shoes hitting the ground, dropping a cell phone, or other scenarios where something it dropped or impacts the floor. STC stands for Sound Transmission Class, which refers to any audible noise (not an impact) such as music playing aloud, a conversation, or a loud television, for example. With both of these ratings systems, the higher the number rating is for the underlayment, the better it will suppress sound, and the quieter a room will be. You may want to pay close attention to these ratings when shopping for underlayment if sound reduction is important to you.

 
 
 
 

Sound Control Graph

Estimated Sound Control

Sound Control Graph
 
 
 
 

Foam underlayment is the most common acoustical underlay. This underlayment is great under all flooring types and is very popular under floating floors. Foam underlay is very cost effective and can be easy installed anywhere in your home. Many foam underlayments feature attached vapor barriers and attached tape strips making installation a breeze. Foam underlayments are available in roll and tile form and are resistant to mold, mildew, and moisture. Most foam underlayments provide excellent sound absorption rates and help to reduce the hollow sound heard under floating floors.