Page 75 - Building Regulation Design Guidelines - Architecture Book (Blue Code)

SEcTION: 9 OPENINGS REQUIREMENTS SEcTION: 9 OPENINGS REQUIREMENTS

9.4 cOURTYARDS AND ShAFTS: 9.4.1.2 In residential apartments, natural lighting and ventilation
for the maid’s room can be provided through the
The minimum area of the courtyard and shaft for the natural lighting and shafts, which shall be no less than 3.0 x 3.0 meters,
ventilation requirements shall be as follows:
regardless of the building height. If the building
9.4.1 Habitable Spaces: exceeds ground floor plus 7 typical floors, Mechanical
9.4.1.1 In case that the courtyard is common for many habitable ventilation shall be provided in accordance to the
spaces and floors, the minimum area for courtyard shall specifications and conditions approved by the Authority.
be square of 1/3 of the total floors height overlooking (figure-22)
at the courtyard and with minimum width of 6.0 X 6.0
meters. (figure-21) ≥ 3.0 m ≥ 2.1 m

*L ≥ 6.0 m
H-Floor Height
Court
Yard

≥ 3.0 m Court *W Maid's
Yard
Room

*A

*A ≥ 6.50 m² *W ≥ 10% A
Figure-22 Shaft for Maid's Room
Court Yard
*A *L ≥ 6.0 m 9.4.1.3 Additional natural ventilation and lighting are required
*L ≥ 6.0 m for rooms whose depth is more than three times its width.
An opening or a shaft shall be in a minimum of 5% of the
space area.
9.4.2 Service Spaces:
9.4.2.1 Closed Kitchens: The minimum dimension of the shaft
1
*A=( X H) 2 and *L ≥6.0 m shall be 3.0 x 3.0 meters regardless of the building height.
3
Mechanical ventilation shall be provided, if the building
Figure-21 Court Yard for Habitable Spaces
exceeds ground floor plus 7 typical floors in accordance
*A = Floor Area / *L= Court yard Width *A = Floor Area / *W= Window Area
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