Products / LP WeatherLogic Air & Water Barrier

LP WeatherLogic Air & Water Barrier is a Structural I OSB roof and wall panel with a factory-applied water-resistive overlay; once the joints are sealed with LP WeatherLogic Seam & Flashing Tape or Sealant it forms an air and water barrier that still lets vapor escape. LP's evaluation report, Intertek CCRR-0319, lists it for use as a roof underlayment and in classified and nonclassified roof assemblies, and LP also lists APA PR-N138 and a limited and extended limited warranty.