Advanced Protection for a Critical Area
Some of the most critical components of moisture protection in the building envelope are the materials that protect the roof. A modern roofing underlayment provides a secondary layer of protection that is critical to the long-term durability of the roofing system.

Catwalk™ 30 is a synthetic roofing underlayment that outperforms #30 felt in virtually every dimension. Engineered from a high strength polypropylene fabric and coated on both sides with surface-enhanced polymeric coatings, Catwalk 30 provides exceptional strength and tear resistance - so it's equipped to withstand the worst jobsite conditions. Yet, at 33 lbs. per 10 square roll, it's much lighter than roofing felt - so it can be handled and installed easily. The product's reflective surface reduces heat absorption, making it cooler for installers and the textured coating makes their job safer.