DUROCK DEFS DIRECT APPLIED EXTERIOR FINISH SYSTEM
DuROCK DEFS is intended for use on ventilated, steel frame, soffit and canopy assemblies that enclose unheated space. DuROCK DEFS may be used on similar wood frame assemblies providing there is wood sheathing separating the DEFS substrate from the framing. DuROCK DEFS may also be used over concrete.
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