What is the purpose of flashing in masonry construction?

Flashing is a critical component in masonry construction, primarily designed to prevent water from penetrating the building. Its function involves redirecting the flow of water away from vulnerable areas, such as joints between different building materials, roof edges, and around windows and doors. By strategically placing flashing, builders ensure that moisture does not accumulate in areas that could lead to structural damage, mold growth, or deterioration of building materials. This protective measure is vital for maintaining the integrity and longevity of masonry structures.

While the other options touch upon various aspects of construction, they do not effectively capture the primary role of flashing. Enhancing decorative elements, providing insulation, and improving mortar adhesion are functions associated with different materials and techniques, rather than the specific purpose of flashing in masonry work.