Gable - It is the triangular
portion of the end wall of a sloped roof formed by continuing the end wall
up within the roof. Thus , the gable has two slopes with ridge in between.
Gallery - An intermediate floor or platform projecting from a wall
of an auditorium or a hall providing extra floor area , additional seating ,
Garage - A building or portion thereof used for shelter , storage
or parking of a wheeled vehicle.
Ground floor - Means the storey of the building which has its floor
surface nearest to the ground around the building.
Garden wall bound - This type of bond is suitably adopted for one
brick thick wall which may act as a garden wall or a boundary wall.
Gate valve - This type of valve is used to control flow of water or
for completely stopping the flow of water in a pipe line.
Gauged brick arches - Gaiged bricks are those which have been
accurately prepared to a wedge shape for the arch construction.
Geometrical stair - This is similar to the open-newel stair with
the difference that the open well between the forward and the backward
flight is curved.
Glass partitions - These are the partitions which are made either
from the sheet glass or hollow glass blocks.
Glazing - Glazing consists in securing glass , in prepared opening
in iron , steel , masonry or wood work.
Globe valve - This is the most commonly used type of valve for
manually controlling or completely closing the flow of water in domestic
Going of step - The run of a step in a stair or the width of the
tread between the direction of a stair.
Goose neck - This is 40 to 50 cm long flexible curved pipe made up
of brass , copper or lead inserted between the ferrule and the service pipe.
Grease trap - These traps are especially designed for removing the
grease content of waste water before discharging the same into the drain.
Grillage foundation - When heavy structural loads from columns ,
piers or stanchions are required to be transferred to a soil of low bearing
capacity , grillage foundation is often found to be lighter and more
Gully trap - Gully trap is a deep seal trap which is provided on
the external face of the wall for disconnecting the waste water flowing from
kitchen , bath , wash basin & floors from the main drainage system.
Guniting - This is a method to prevent the defect of dampness in
the structure. This consists in depositing an impervious layer of rich
cement mortar over the surface to be water proofed.