Originally Posted by Bushman
It is stuck down pretty good and not deeply embossed. Although I could see problems if a joint landed on a embossed seam. Thanks for the input.
The easiest and best way to ensure you don't have any telegraphing or problems having to do with the embossing of the existing vinyl floor is to skim it first using an embossing leveller.
The embossing leveller serves two purposes. The first, evident by its name, is to fill any embossing existing in the existing floor thus creating a smooth surface. The second is to ensure a surface to which your tile will bond properly. Over the years the existing floor has been cleaned a variety of ways with cleaners that may or may not have been appropriate and have likely left a buildup of residue behind. If you use an embossing leveller you are able to significantly reduce the potential failure rate of peel and stick tile.
Hope that helps!
PS, Here's a helpful document from Armstrong pertaining to the preparation of your existing floor prior to installation. http://www.armstrong.com/content2/resam/files/44963.pdf