CALI Complete Premium 100 sq. ft 30 ft. x 3.85 ft. x 4/5 in. 1.5 mm Underlayment for Floated Floors 1102002500 - The Home Depot

Highlights

Sheets come in a fan-fold design and are easy to lay out
• Interlocking edges facilitate quick full-coverage installation
• Sheets are lightweight and easy to custom cut
• Provides a thermal break
keeping cold from rising through the subfloor
• Keeps rooms cooler in warmer summer months
• Grip surface on top of sheet helps to keep flooring planks from sliding
• Provides cushioning which protects a floor's click-lock system
• Helps to smooth out small subfloor imperfections
• Softens creaking noises in floor or subfloor