Figure 8-43.-Making a closure joint in a header course.
on both sides of the closure brick (view 2). Then,
lay the closure brick carefully into position without
disturbing the brick already laid (view 3). If you do
disturb any adjacent brick, cracks will form between
the brick and mortar, allowing moisture to penetrate
the wall. You should place a closure brick for a
Figure 8-44.-Making a closure joint in a stretcher course.
stretcher course (figure 8-44) using the same
techniques as for a header course.
As we mentioned earlier, filling exposed joints
with mortar immediately after laying a wall is called
pointing. You can also fill holes and correct defective
mortar joints by pointing, using a pointing trowel.