Move the peel and stick tiles into the room at least 48 hours prior to installing them to allow the tiles time to acclimate to the room’s humidity levels.
Clear all furniture out of the room.
Cut away upturned corners of the vinyl flooring with a sharp blade to create as smooth a surface as you can manage.
Slice through air pockets where the glue no longer holds the vinyl down and push the vinyl down flat or cut it off.
Clean the vinyl floor to remove debris, grease, paint, sealers and wax to create a suitable surface for the glue on the peel-and-stick tile to adhere to the vinyl beneath it.
Spread a self-leveling compound across the floor to fill in grooves, patterns and low spots. Allow the compound to dry according to the manufacturer’s specifications.
Lay the peel-and-stick tiles on the floor without removing their protective paper backing to identify potential fit and placement problems.
Remove the paper from the back of the tile, starting with the center of the room. Press the tile firmly in place. Continue the process of peeling and sticking the tiles to complete the room. Cut tiles with a sharp blade at the places you identified during the dry fit.