Breaking the bond in this way does not affect the
compressive strength of the wall and should not affect
the stability of the veneer wythe when anchored properly.
The weight of the masonry, additional anchorage and
the frictional properties at the interface provide stability.
Sealant at the face of the joints between the different
materials will reduce possible water entry. If the band is
concrete masonry or cast stone, additional control joints are
recommended in the band. If the band is a single course,
there is a likelihood of vertical cracks at all head joints.
These can be closed with a sealant. Bands of two or more
courses should include horizontal joint reinforcement in
the intervening bed joints, as shown in
Figure 12
.
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