Title: Apply head joints (block).
Course: Masonry I (17008-I) > Section: Laying Concrete Masonry Units

Application should include mortar spread on both sides of one end of the block, maintaining a uniform thickness to form a 3/8 inch head joint.

Process/Skill Questions:

- What is a head joint, and what function does it serve?
- How wide should a head joint be?

NCCER Masonry Standards

Level One, Module Six (28105-13): Masonry Units and Installation Techniques

This module describes characteristics of block and brick; how to set up, lay out, and bond block and brick; how to cut block and brick; how to lay and tool block and brick; and how to clean block and brick once they have been laid. This module also provides information about masonry reinforcements and accessories that masons use on the job to lay block and brick professionally and safely.