Can You Paint or Paper a Wall That Is Crackling and Peeling?

Scrape

• Cracked and peeling paint or wallpaper has to be removed from the wall before any new paint is applied. Professional-grade paint scrapers, found in hardware stores, are used to remove and knock off any loose paint or paper. Drag the scraper lightly across the wall in a scraping motion, but do not go too deep as to create more damage to the wall. If necessary, use it to lift away loose wallpaper.

Sand

• Sand the wall to remove the rest of the cracking and peeling paint or wallpaper, which removes residual glue from wallpaper as well as light scratches and other wall markings. For sticky glue, use an adhesive remover. Your result, after sanding, should be a smooth even surface. Run your hand across the wall to feel for bumps and uneven areas, and sand the ones you find.

Repair Damaged Areas

• Holes, chips, dents and deep scratches are common damages walls receive over their lifetime. They must be repaired, or they will show through the new paint. Apply spackling over the damaged areas, and wait for it to dry before you smooth it with sanding. When finished, wash the wall with soap and water to remove the dirt from sanding so that it does not get into the new paint and ruin your finish.

Prime the Wall

• Primer is important for sealing porous areas and protecting surfaces from moisture. It covers any previous stains and leaves a smooth, even surface for your new coat of paint. Use the paintbrush to lay one coat of primer over the wall, and wait for it to dry. If multiple coats are necessary, wait for one coat to dry before applying another one.

Apply the Paint

• Paint is available in different sheens, each of which serves a purpose. Glossy finishes are suggested for use in high-moisture areas, such as kitchens and bathrooms. They protect walls from water and are easily washable. Flat finishes are traditionally used on ceilings, closets and other low-traffic areas. High gloss finishes show more imperfections in the wall but are easier to clean than flat finishes. For installation of wallpaper, always read the manufacturer's directions for proper application.