Drywall Framing System
Used as a stucco/plaster stop to provide a screed edge and protective finish trim while terminating plaster in a clear straight line at doors, windows, or other openings. Also, recommended as an edge divider between plaster and other dissimilar materials. The #66N short flange is used where an expanded flange is not required.
Suggestions for installation precautions when installing two-piece expansion joints and double casing beads used as double expansion joints: ASTM C1063 requires that double casing beads used as a movement joint “with a flexible barrier membrane behind the casing beads.” It is Clark-Dietrich’s opinion that all two-piece joints whether made from double casing beads or as a manufactured two-piece joint should be installed with the flexible peel and stick membrane behind the joint and it is further recommended that they be filled with backer rod and a highly elastic top quality sealant.