Building departments across the DFW metroplex are tightening enforcement regarding roof underlayment materials. While traditional organic felt was the industry standard for decades, synthetic alternatives are now becoming the baseline requirement for many new permits.
Synthetic underlayment, typically made from woven polypropylene or polyethylene, offers superior tear resistance compared to felt. This is particularly critical in Texas, where high winds can strip shingles and leave the underlayment exposed to the elements for several days during a storm cycle.
Key Advantages for Homeowners
Modern synthetic options are non-absorbent, meaning they do not wrinkle or buckle when exposed to moisture. This creates a flatter surface for shingle application, resulting in a better aesthetic finish and a more reliable secondary water barrier.
- Higher UV resistance during the construction phase.
- Lighter weight per square, reducing structural load.
- Improved slip resistance for technician safety during installation.
Most insurance carriers now recognize the long-term durability of these materials. When planning a replacement, homeowners should verify that their contractor is using a product that meets or exceeds the current IRC specifications for high-wind zones.