Red Seal Roofer Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

Synthetic underlayment is designed to offer superior performance in several key aspects compared to traditional felt underlayment. One of the most significant advantages is its greater durability and water resistance. Synthetic materials are typically made from polymers that provide enhanced tear resistance, which is crucial for maintaining integrity during the installation process and throughout the life of the roofing system.

Additionally, synthetic underlayment is often engineered to resist moisture, UV rays, and weathering better than felt. This means it can better protect the roofing deck from water intrusion, reducing the risk of leaks and mold growth. The combination of these qualities results in a longer lifespan and improved overall effectiveness as an underlayment.

The other options may suggest benefits that some users might experience, but they do not reflect the primary, widely recognized advantage of synthetic underlayment, which lies in its enhanced durability and superior water resistance compared to felt products.