Page 278 - Masonry and Concrete

Masonry Veneer

277
MASONRY VENEER

the external corners of long building
walls because the opposing expansion of
the intersecting walls can crack the
brick. Brick masonry expansion joints
and concrete masonry control joints
should also be located at offsets and
changes in wall height (Figure 7-28). If
the brick is resting on a poured-concrete
foundation, the bond break or slippage
plane created by flashing at the base of a
wall will prevent the opposing move-
ment of brick expansion and concrete
shrinkage from causing foundation
cracking at outside building corners
(Figure 7-29).
FIGURE 7-1
FIGURE 7-29
Cracking at building corner due to brick expansion
restrained by concrete shrinkage.

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