Removing old cover finish from ceilings is a time consuming process, involving hours of scraping, but polystyrene ceiling tiles can be glued right over top of old cover and easy to fix using coving adhesive. Polystyrene ceiling tiles are an easy way to enhance any room's decor. In fact, it's never been so easy to give your room a decorative ceiling by covering up that ugly old cover ceiling with these lightweight tiles. Polystyrene tiles are paintable and can be installed without having to buy or rent expensive tools.If you like, tiles can be painted to match your decor using most water-based paints. Use a brush, roller, or air pressure sprayer to paint the tiles before or after installing them.Polystyrene ceiling tiles are an excellent way to add insulation to your ceiling, helping with both your heating and cooling bills.