Back: The inner surface of the wall which is not exposed is called back. The material forming the back is called backing.
Face: The outer part of the wall exposed to the weather is called the face. The material used in the face of the wall is known as facing.
Harting: This is the inner part of the wall between the front and back.
Stretcher: It is a brick whose length is parallel to the front or direction of its face or wall. A course consisting of stretchers is known as a stretcher course.
Header: It is a brick whose width or width is parallel to the face or front or direction of a wall.
Rises: The edges formed by meeting the flat surfaces of the bricks are called risers and should be sharp, square and free from damage.
Perpends: The vertical joints separating the bricks in length or cross direction are known as perpends. Alternate courses should be vertically above each other for a good bond.
Lap: The horizontal distance between vertical joints in consecutive courses is called a lap. For a good bond it should be a quarter of the length of a brick.
Closer: A piece of brick used to close the bond at the end of a course of bricks is known as a closer. This helps prevent the joint of successive courses from coming into a vertical line. In general, the close is not particularly molded.
Queen Close: It is obtained by cutting the brick into two equal parts longitudinally. It can also be made of two-quarter bricks, called quarter closers, to reduce wastage of bricks.
King Closure: This is achieved by cutting the triangular section of the brick in such a way that half the header and half the stretcher are obtained on the adjacent cut faces. King closures are used near door and window openings to achieve satisfactory mortar joint arrangements.
Frog: A frog is a mark about 10-20 mm deep, placed on the face of the brick to form a key to hold the mortar.
Bat: It is a piece of brick, usually measured by the length of the brick and is called a half bat or three-quarter bat accordingly.
Leave a Reply