Page 326 - Masonry and Concrete

Masonry Garden Walls

325
MASONRY GARDEN WALLS

FIGURE 9-12
Brick screen walls.

wythes together and provide support for the
stretcher units. The first three courses can be
laid as a solid wall to form a good base. The
middle courses are then laid in the open pat-
tern, and the upper portion of the wall is fin-
ished with three more solid courses and a
coping. To help protect against damage
caused by freezing and thawing of trapped
moisture within the wall, use only solid
bricks without core holes. If the bricks have
a “frog” or indention on one side, make sure
it is on the bottom of the unit so water will
not collect in the depression.
Standard height-to-thickness ratios for
conventional exterior solid brick walls limit
the span or height of 8-in.-thick walls to
12 ft. Brick screen walls should probably be
built more conservatively, though, because FIGURE 9-12
the open head joints and intermittent bed Brick screen walls.

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