Closer
A closer is a masonry unit used to adjust joint spacing at the end of a course and a hydraulic device for automatic door closing.
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Definition
A closer is the last masonry unit laid in a course, often a partial unit used at the corner to adjust joint spacing. It can also refer to a hydraulic device used to close doors.
Purpose
The purpose of a closer in masonry is to ensure proper spacing and alignment of joints, particularly at corners, completing the integrity of the structure. The hydraulic door closer ensures doors close automatically, enhancing security and energy efficiency.
Examples of Use
- In bricklaying, the closer is cut to fit into the remaining space at the end of a row.
- Door closers are installed on exterior doors of commercial buildings to ensure they close securely after each use.
Related Terms
- Bricklaying: The craft of laying bricks to construct a building or structure.
- Mortar: A mixture used to bond masonry units together.
- Hydraulic Mechanism: A system using fluid power to perform work, as in door closers.
Notes
Closers must be precisely cut and placed to maintain the structural integrity and aesthetic appeal of the masonry work. Hydraulic door closers need regular maintenance to function effectively.