CertainTeed's DiamondDeck® is a high-performance synthetic underlayment designed for use in residential roofing applications. This premium underlayment offers superior protection and durability, making it an ideal choice for a wide range of roofing systems. DiamondDeck® is made from a unique polypropylene and polymer composite material, making it highly resistant to tears, punctures, and impacts. This advanced material ensures that the underlayment remains intact and functional, even under the harshest weather conditions. One of the key benefits of DiamondDeck® is its exceptional slip resistance. The underlayment features a special slip-resistant surface that provides a secure footing for installers and contractors, even on steep roof pitches. This feature helps to ensure safety during installation and reduces the risk of accidents or injuries. DiamondDeck® also offers superior water resistance. The underlayment forms a water-resistant barrier that helps to prevent moisture intrusion and protects the roofing system from damage caused by water infiltration. This water-resistant barrier is essential for ensuring the longevity and durability of the entire roofing sys...See Moretem. The underlayment is designed to be easy to install, with a lightweight and flexible construction that allows for easy handling and positioning. DiamondDeck® is also easy to cut and size, making it an ideal choice for custom roof designs. DiamondDeck® is specifically designed to be used in conjunction with CertainTeed's roofing shingles, providing a complete roofing system that delivers exceptional performance and durability. When used together, DiamondDeck® and CertainTeed's roofing shingles provide a superior level of protection and performance that can withstand even the toughest weather conditions. Overall, DiamondDeck® is a high-performing synthetic underlayment that delivers superior protection, durability, and ease of installation in residential roofing applications. Its slip-resistant surface, water-resistant barrier, and compatibility with CertainTeed's roofing shingles make it a reliable choice for building owners and contractors alike. If you are seeking a high-quality underlayment for your residential roofing project, consider DiamondDeck® from CertainTeed. See Less