Tn 18A web-nov06. indd


Figure 11 Bond Breaks in Loadbearing Cavity Wall



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Figure 11

Bond Breaks in Loadbearing Cavity Wall


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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