Instructions / Assembly

78
CONTROL AND EXPANSION JOINTS
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
DOUBLEV CONTROL JOINT
Double-V expansion control
joints relieve the stresses of
basic expansion and contraction
associated with inherent shrinkage
during stucco curing and general
thermal changes. Resists corrosion,
plus expanded flanges allow for
proper keying and easy installation.
Ground heights include 3/8" for
thin coat plaster and 1/2," 3/4" and
7/8" for conventional plaster.
Product code
Size
Grounds
(in)
Length
(ft)
VVCJ
(galvanized)
3/8
10
1/2
3/4
7/8
VVJZ
(zinc)
1/2
103/4
7/8
DOUBLEJ CONTROL JOINT
A general-purpose control joint
oering exceptional expansion
control for plastered walls and
ceilings, the double-J expansion
control joint has a 5/16" reveal
and rolled outer edges that allow
eective plaster bonding. This helps
prevent visible separation cracks.
Plastic tape keeps the reveal clean
and is removed easily after finish
application.
Product code
Size
Grounds
(in)
Length
(ft)
XJ15
(galvanized)
1/2
103/4
7/8
ZJ15
(zinc)
1/2
103/4
7/8
Corner Master™ #30 CONTRACTION CONTROL JOINT
ClarkDietrich Corner Master™
#30 expansion/contraction
control joint is designed to provide
stress relief at plaster wall inside
corner intersections, by absorbing
movement and controlling cracking.
It has expanded flanges pre-formed
at 90˚ for a flush fit at inside corners.
Ground heights oered aid plaster
keying and result in a clean, straight
finish. Manufactured from galvanized
steel for corrosion protection.
Product code
Size
Grounds
(in)
Length
(ft)
CR30
1/2
103/4
7/8
CAUTION: Joints and corners are a potential point of water intrusion. ClarkDietrich strongly recommends building paper be placed as flashing behind all joints and
corners. Also, a bead of high-quality caulking should be applied under the joints prior to the attachment of the materials.