Our Plyseal Rigid Air Barrier board has been specifically tested to meet the requirements of E2/AS1/VM1 and NZS 4284 respectively. Plyseal is ACQ treated to H3.2 meeting the requirements of NZS1640.3 and B2 (durability) of NZBC. Plyseal by nature is a user friendly product combining strength with easy cutting, nailing and handling. Using Plyseal ensures a quick efficient and accurate installation process.