I have a brick entry that's buried under 2 layers of sheet vinyl. The
sheet vinyl peals up very easily -- it was probably adhesive backed. But
it leaves its backing paper and glue behind on the brick. The brick is
some kind of non-porous type that has some kind of glaze or sealer. Am I
going to damage the surface if I use a manual scrapper? What's the
alternative, heat gun and/or goof-off?