What are head joints in masonry?

Head joints in masonry are defined as the vertical joints located between the ends of masonry units, such as bricks or blocks. These joints play a critical role in the overall stability and integrity of a masonry wall, as they help to accommodate potential movement, moisture management, and provide a means for mortar to bond the units together.

Understanding head joints is essential for proper masonry construction. They allow for vertical alignment and act as conduits for bonding mortar that helps hold the masonry units in place, contributing to the wall's structural integrity and aesthetic appearance. The nature of these joints can affect how loads are distributed and how well the masonry resists environmental pressures.

In contrast, horizontal joints would refer to the mortar joints between the top and bottom of masonry units, diagonal joints are not typical in masonry practice, and curved joints are not standard in standard masonry construction. Thus, recognizing the significance of head joints is fundamental for an accurate understanding of masonry practices and techniques.