Chestnut Grove Glue-up Styrofoam Ceiling Tile 20 in x 20 in - #R 31 - (Pack of 96) /259 sqft Goes Over Popcorn And Most Ceiling Surfaces Styrofoam 20x20 (259.2 sqft) Adds Insulation Easy Glue Up Install Light Weight No Expensive Tools Needed Paintable With Any Water-Based Paint Installation Information: Installation Information Project Showcase R31- Plain White Installed in Living and Dining R31- Ultra Pure White Installed in Living and Dining R31- Plain White Installed in Kitchen R31- Ultra Pure White Installed in Living and Dining R31- Antique Bronze Installed in Living and Dining R31- Plain White Installed in Living and Dining R31- Plain White Installed in Living and Dining R31- Plain White Installed in Living and Dining R31- Plain White Installed in Living and Dining R31- Ultra Pure White Installed in Living and Dining R31- Plain White Installed in Living and Dining