DFE-6 (TH) cont.. CSI 3-Part Specifications.

	BITUMINOUS FLASHINGS
	Specification DFE-6 (TH) continued

Base Flashing and Wall Covering

For tilt-up construction walls more than 24" (610 mm) above the roof membrane

Wall Covering: Starting just beyond where the wall covering will terminate on the top of the parapet, install DynaFlex, using the same application procedures used in the base flashing application. The wall covering shall overlap the base flashing by a minimum of 4" (102 mm).

All vertical joints in the wall covering shall be overlapped a minimum of 4" (102 mm) and be well sealed. Mechanically fasten the wall covering on 6" (152 mm) centers along the top edge. Fasteners must have a 1" (25 mm) minimum diameter integral cap, or be driven through 1" (25 mm) minimum diameter rigid metal discs. It is recommended that the vertical laps in both the base flashing and the wall covering be covered with a 1/8" (3 mm) thick layer of MBR Flashing Cement, or a 4" (102 mm) wide strip of fiber glass mesh or ply felt embedded in and trowelled over with a layer of MBR Utility Cement.

Metal Coping (optional): The metal coping should be installed in accordance with the coping manufacturer’s specifications and details, or in accordance with SMACNA procedures.

If a metal coping is not used, the wall covering must be finished with a 4" (102 mm) wide, 1/8" (3 mm) thick layer of MBR Flashing Cement or a 4" (102 mm) wide strip of fiber glass mesh or ply felt, embedded in and trowelled over with a 1/8" (3 mm) thick layer of MBR Utility Cement, bringing the cement to a feather edge. This procedure should also be used if the application of the metal coping will be delayed.

Surfacing: DynaFlex requires no additional surfacing.