Instructions / Assembly

77
CORNER AND CASING BEADS
The technical content of this literature is eective 5/31/12 and supersedes all previous information. Pub. No. CD-Full Line 5/12
clarkdietrich.com
METAL LATH & ACCESSORIES
#66 EXPANDED FLANGE CASING BEAD WITH WEEP HOLE
Designed for use with select,
tested and approved one-coat
plaster systems, this version of the
#66 expanded flange casing bead
includes weep holes for moisture
dissipation. Expanded flange is
3-1/8" wide to aid plaster keying.
NOTE: It is important to remember
that casing beads with weep holes
punched in the ground flange are for
tested and approved one-coat systems.
No other applications are implied or
suggested.
Product code
Size
Grounds
(in)
Length
(ft)
Weep
hole
XXCW
(galvanized)
3/8
10 Yes
1/2
5/8
3/4
7/8
1
1-1/4
XXZW
(zinc)
3/8
10 Yes
1/2
5/8
3/4
7/8
1
1-1/4
#66 N SHORT FLANGE CASING BEAD
ClarkDietrich #66 N short flange
casing beads are used as plaster
stops, as exposed trim around
wall openings and junctions, or at
intersections of plaster and other
wall or ceiling finishes. Perforated
1-1/4" nailing flange aids attachment
and plaster keying. Short flange
7/8" beads are recommended when
flange is applied under gypsum lath
plaster base; and short flange 1/2"
beads when flange is applied over
gypsum lath plaster base.
Product code
Size
Grounds
(in)
Length
(ft)
Weep
hole
SFCB
(galvanized)
3/8
10 No
1/2
5/8
3/4
7/8
1
1-1/4
SFZB
(zinc)
3/8
10 No
1/2
3/4
7/8
CAUTION: 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 are installed “with a flexible barrier
membrane behind the casing beads.” It is ClarkDietrich’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. It is further
recommended that they be filled with backer rod and a highly elastic top-quality sealant.
#66 N SHORT FLANGE CASING BEAD WITH WEEP HOLE
This #66 N short flange galvanized
casing bead has the same uses as the
#66 expanded flange casing beads
associated with select one-coat
systems, but it has weep holes for
moisture dissipation. Perforated
1-1/4" nailing flange aids attachment
and plaster keying.
NOTE: It is important to remember that
casing beads with weep holes punched
in the ground flange are for tested and
approved one-coat systems. No other
applications are implied or suggested.
Product code
Size
Grounds
(in)
Length
(ft)
Weep
hole
SFWB*
3/8
10 Ye s
1/2
5/8
3/4
7/8
1
1-1/4
*Available in zinc as a custom order.