Copyright Goodheart-Willcox Co., Inc. 242 Section 4 Techniques English Bond English bond has alternate courses of stretchers and headers. The headers center on the stretchers and on the joints between the stretchers. The stretchers all line up vertically, one over the other. Two methods can be used to start the English bond at a corner—1/4 closure or a 3/4 closure. See Figure 12-53. 12.3.7 Constructing a 10″ Brick Masonry Cavity Wall Construction of a cavity wall involves basic bricklay- ing techniques however, no bridge of solid material capable of carrying water across the minimum 2″ cav- ity space should be permitted. The construction of two separate wythes, with a clean cavity, is the objective. See Figure 12-54. Flemish bond with 3/4 closure at corners Flemish bond with 1/4 closure Goodheart-Willcox Publisher Figure 12-52. Corner layout in Flemish bond with 3/4 and 1/4 closure. English bond with 1/4 closure English bond with 3/4 closure at corners Goodheart-Willcox Publisher Figure 12-53. Corner layout in English bond with 3/4 and 1/4 closure. Metal tie Goodheart-Willcox Publisher Figure 12-54. Metal ties are used in cavity wall construction.