Mar-flex Waterproofing and Building Products offers a new Air Barrier for commercial applications. Mar-flex Air & Vapor Barrier 1800 provides a seamless, 100% rubber continuous membrane around the building envelope. This air barrier is impermeable to air and vapor transmission, and is watertight. This product has a low odor, it is self-priming, and provides and excellent elongation and recovery. It can be applied directly to a variety of exterior surfaces. It is one of the most flexible Air Barrier products, making it the choice for the building professional looking for quality and durability.