These ceilings are made of polystyrene and are easy to install using a adhesive. The ceilings can be applied over most ceilings, including popcorn texture. The ceilings are available in more than 80 designs, textures and wood imitating facing. They also can be painted to look like tin ceilings. These units are affordable and ideal for decorating ceilings. The company also carries faux wood beam, polyurethane moldings and rosettes.