Goes Over Popcorn And Most Ceiling Surfaces Styrofoam 20x20 (2.7 sq ft) Adds Insulation Easy Install Light Weight No Expensive Tools Needed Paintable With Any Water-Based Paint Installation Information: Installation Information Project Showcase R14- Plain White Installed in Kitchen R14- Plain White Decorative Bed R14- Plain White Installed in Living and Dining R14- Antique Bronze Installed in Living and Dining R14- White Installed in Beauty Salon / Barbershop R14- Plain White Installed in Living and Dining R14- Plain White Installed in Living and Dining R14- Plain White Installed in Living and Dining R14- Silver Installed in Living and Dining