They need to spend a lot of time on the finish sanding.
Should wood floor feel like it has waves.
Since this doesn t allow a small air gap between the wood floor and the subfloor this option eliminates that hollow sound and it makes engineered wood feel and sound like real hardwood.
They can use a multi disc driver plate.
Sound waves bounce between the wood floor and the walls intensifying the effect.
Either way the result is not.
The walls and windows that surround a wood floor are also partly responsible for room echo.
From the statement you make sometimes it is worse than other times i would guess conditions are not consistent throughout the year.
The boards are not laying completely flat.
If you want to go with this option just keep in mind that any glue that seeps through the seams must be cleaned up immediately and it can have an odor.
I have been waiting thinking they might flatten out in time.
Most of the time wood flooring should have occupied space conditions between 30 50 relative humidity to minimize cupping or crowning like you are seeing.
By carlye jones rippling in a wood floor is called chatter if the ripples are less than 1 1 2 inches apart and waves if the ripples are more than 1 1 2 inches apart.
They have a wavy like appearance and you can feel the waves with your hands.
I noticed the waves on hardwood floor probably a month or so after installation.