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30
MORE JOINT DETAILS
Metal-frame joint Distance A should equal distance B
for equal expansion and movement.
I cannot emphasize enough the importance of
transition joints. You can have the best envelope
system, but if the transition joints fail, the entire
system will fail.
I often find failures in residential wood frame
structures where the building paper under the
stucco has been compromised. The building
paper is replaced with an elastomeric coating on
the stucco, but the transition joints are ignored.
The elastomeric system is blamed for the water
intrusion, but in fact the joints are the culprits.
Proper attention to joints is essential for a
successful waterproofing scope.
END CHAPTER III
¼ round backer rod
Sealant bead