Ways to wallpaper over an old, flaking surface
Q. I plan to wallpaper the ceiling in my bathroom where the old paint is flaking. Sanding and three coats of undersealer have not stopped the flaking. Can I safely wallpaper over this kind of surface? Jo Goodwin Rancho Palos Verdes, Calif.Skip to next paragraph
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A. You have two choices, either of which should work well enough to hold the paper on the wall:
* Scrape and sand the wall so as to remove all the old paint. No sealer will hold the paint down well enough to hang paper over it.
* If the peeling is so bad and under enough coats of paint so as to resist total removal, install a sheet of 3/8-inch-thick dry wall on the ceiling, nailing it securely to the ceiling joists. ''Set'' the nailheads. Then fill the nail holes with regular dry-wall ''mud,'' sand smooth, and apply a coat of oil-based primer sealer.
Finally, apply the wallpaper following the manufacturer's directions precisely.