Thanks Debra,
The pamplet he gave me mentioned something called Ultra Fresh that is supposed to be hypoallergenic and antimicrobial. Those words made me wonder if they added something strange.
I guess sinse it will be under the floor it should not be a problem. I just did not want somethimng that had some sort of off gassing.
Bonnie Johnson

Be careful that this product doesn't require a sealant to aid in the soundproofing. I installed a quiet product that used a rubber based sealant to absorb sound and it emitted toxic fumes into the room. While it was a drywall, I was told that many of the quiet products use these sealants as they remane tacky and plyable to absorb sound. This may not be the case but it doesn't hurt to ask just incase. I have to tear my room out so I wish I'd known ahead of time. Good luck.

I had my Pergo floor installed many years ago, in my upper-level condo. I was told that the WhisperWalk put underneath would make the floor sound more like a real wood floor, which it does. However, what I was not told was the benefit to the downstairs neighbor.

My neighbor across the hall pulled up a good wood floor, tore out the stuff underneath it, and installed a cheap wood floor. The neighbor underneath suddenly had sounds that were greatly amplified, much like a drum. He researched this, and went into Lowe's, Home Depot, etc who sold flooring - no one told him about this problem. When he contacted a professional, they knew exactly what had happened, they said 1/2 of cork should have been laid under the flooring to prevent this amplification of noise.

I have never had a real problem with noise bothering my downstairs neighbor - I suspect the WhisperWalk, or what has been previously mentioned, greatly helps reduce the sound transmission.


Our bare floors in the condo's are concrete, and this is a two-story building, built in the late 60's.

Bonnie, regarding the Ultra Fresh you wrote: “I guess since it will be under the floor it should not be a problem.” If there are toxins in the product they WILL gas out into the living space. You can contact the manufacturer for a MSDS, however be aware that there is no requirement to list so called “inert” substances. Although not all toxins can be detcted by smelling them, it would stil be helpful to put some of the product into a glass jar, close the jat, and set it in the sun. After a few hours open the lid and immediately sniff it to see if the fumes are a problem for you.