The tape was double-sided mesh carpet tape. It has been under a runner in an entryway for about 20 years and is now just a dried mesh and whatever residue is left from the glue that was on the tape. Can anyone suggest a method of removing the tape without doing damage to the floor? Thanks!
A heat gun warm up the yape it will get sticky again and pull it off then the stick stuff from the tape 90 per cent alcohol will take it off and your floor is not damaged
A plastic putty knife can often remove residue if it isn't too sticky. In a pinch, an old plastic credit card can also work. If the surface finish is weak, it may lift with the residue.
Soaking the tape in WD-40 may be able to dissolve the glue and make it easier to remove. You may have to leave it for a few hours to soak in considering the age of the material.