Point 1
Leveling course must be level and plumb. Do not proceed to subsequent courses until leveling course has set sufficiently.

Point 2
Blocks must be installed in a running bond
with a minimum 6" bearing (overlap) or 40%
of the block's height (whichever is greater). Lintels must be installed with a minimum 8" bearing (overlap).

Point 3
All head and bed joints must be solid with approved AAC thin-bed mortar for full adhesion.
Do not tooth.