Goes Over Popcorn And Most Ceiling Surfaces Styrofoam 20x20 (2.7 sqft) Adds Insulation Easy Install Light Weight No Expensive Tools Needed Paintable With Any Water-Based Paint 3-5 Business Days Delivery Installation Information: Installation Information Project Showcase R60- Plain White Installed in Kitchen R60- White Washed Gold Installed in Living and Dining R60- Plain White Installed in Living and Dining R60- Plain White Installed in Bathroom R60- Antique Silver Installed in RVs / Trailers R60- Plain White Installed in Bathroom