Designed for either vertical or horizontal application. Sheathing board slides in between nailing flange and perforated "wings". "Wings" have stops to ensure a clean, straight line during application of ground coat and finish. Perforations assure positive bond of ground coat to substrate.

"M" Control Joint shall be Plastic Components Inc. #________. All exterior accessories shall conform to ASTM standards D1784, C1063 and D4216-99. They shall be used where specified by the architect and installed per industry standards.