Ensure the surface of the substrate (concrete, plywood, calcium silicate board, metal/insulation composite, etc.) is properly prepared to accept the Permatec fully bonded system. Detail joints, cracks, or interfaces between different substrate materials following Permatec Anti-Root Standard Drawings and Masterspec 4414AP specification.
Apply the first coat of hot Permatec Anti-Root compound to the prepared substrate using a suitable spreader or squeegee. Maintain a nominal coat thickness of 3mm. Brush the Permaflash-R polyester reinforcement into the hot Permatec Anti-Root compound, ensuring that all laps in the Permaflash-R are at least 75mm wide and fully sealed with the Permatec Anti-Root compound. Apply the second coat in the same manner, ensuring complete coverage of Permaflash-R at the nominal coating thickness of 3mm. Protect the second coat of Permatec Anti-Root.