• Water Shedding & Nail Sealable
• 2X the Coverage of a Traditional 30 lb. Felt - More Per Roll with Less Weight
• Lightweight and Flexible Compared to Felt, With the Added Durability of Synthetics
• Lays Flatter and Easier to Install Than Traditional 30 lb. Felt 
• Non-Skid Surface 
• Temperature Resistance up to 240°F - Ideal for High Temperature Applications 

APOC CrossOver CX-L Premium Hybrid Roof Underlayment is a high quality roofing underlayment designed to shed water off your roof and away from your home or building. This hybrid product uses advanced technology, combining the best properties of traditional organic felts and synthetic products. This crossover advanced design creates a superior roof underlayment with faster and easier installation, as well as improved performance and durability. Roof underlayments perform a vital role in protecting your home or building against damage from wind, moisture, rain, UV and other destructive elements. Unfortunately, most do not stand up to the test of time. Whether it is wind, water or UV damage, CrossOver CX-L provides the most advanced protection in its class. Rest assured, you are protected from the elements with CrossOver CX-L Premium Hybrid Roof Technology. Exceeds performance requirements of ASTM D4869, D226, D1970*. Florida Building Code Approved. Miami-Dade County Product Control Approved. UL Classified File #R14831. PRI report: GGI-176-02-01.