This document discusses the building services systems for a school building, including the water supply, electrical, sewerage/sanitary, and rainwater drainage systems. Diagrams and drawings are provided to illustrate the proposed layout and components of each system, including water meters, distribution boards, floor drains, downpipes, and more. Regulations and standards are referenced to ensure each system meets code requirements. The conclusion evaluates how site conditions informed the system designs and the learning experience of considering all technical building service aspects.

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BUILDING SERVICES (BLD60903/ARC2423)
PROJECT 2: BUILDING SERVICES DIARY
Electrical Supply System
Water Supply System
Sewerage and Sanitary System
Rainwater/ Surface Drainage System
Ahmad Ashraf 0317744
Tutor: Ar. Sateerah

2. TABLE OF CONTENTS
1.0 ABSTRACT
1.1 BUILDING INTRODUCTION
2.0 INFORMATION AND DATA
2.1 WATER SUPPLY SYSTEM
2.2 ELECTRICAL SUPPLY SYSTEM
2.3 SEWERAGE AND SANITARY SUPPLY SYSTEM
2.4 RAINWATER/ SURFACE WATER MANAGEMENT
3.0 DRAWINGS
3.1 SITE PLAN
3.2 GROUND FLOOR PLAN
3.3 ROOF PLAN
3.4 REFLECTED CEILING PLAN
3.5 SCHEMATIC DIAGRAM
4.0 CONCLUSION
5.0 REFERENCES
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3. 1.0 ABSTRACT
Project 2 is an individual assignment on the application of basic building services to a
domestic sized building. This exercise requires us to demonstrate our understanding on the
application of such systems by producing technical drawings of the necessary services.
We touched on the basic services of safety in our previous project, while this conducti study is
routed to the service/sanitary aspects of a building’s network. Picking up from our studio final
assignment, we are to form and implement these services cohesively into the school.
UBBLs and By Laws are included to maintain strict order, ensuring comfort and safety for the
surroundings and it’s tenants.
2.1 BUILDING INTRODUCTION
The studied building is conceived around a conceptual cluster of classrooms and spaces,
meant to break the mould of the most literal definition of ‘school’. Hence, a more elaborate
form and building fabric, requiring prefabrication of materials and parts. In the case of this
particular school, the plinth placement on uneven ground and varying finished floor levels
takes away a guided system, posing a challenge in properly assessing probable routes and
solutions to plumbing and wiring.
Along the boundary of the site is where a public drain is situated, where surface and rain water
from the building can be discharged into. Sewerage pipings are by permission from the
PBAPP for underground sewage tapping.
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4. 2.0 INFORMATION AND DATA
2.1 WATER SUPPLY SYSTEM
UBBL section 84
PREVENTION OF DAMPNESS
Good building design and maintenance need to be taken to prevent penetration of dampness into the
building.
UBBL section 89
CHASE
A chase made in a wall for pipes and other service facilities shall leave the walls at the back of the chase,
with not less than 100mm thick in the external walls and not less than 100mm thick in party walls and shall
not wider than 200mm.
UBBL section 123
PIPES AND SERVICES DUCTS
1.Adequate for the accommodation of pipes, cable or conduits and for crossings of branches and mains
together with support and fixing.
2.Sufficiently large to permit access to cleaning eyes, stop cocks and other controls there to enable repairs,
extensions and modifications to be made to each or all of the service accommodated.
Water meters are used to measure the volume of water
used by the buildings that are supplied with water by
public water supply system. They are also used at the
water source, well, or throughout a water system to
determine water flow through a particular portion of the
system.
A stop cock function is to regulate the flow of tap water
in services. It can be found at the junction of a water
main and the branch leading to an individual service,
also inside the structure, and are employed when
maintenance or emergency repairs are conducted.
1. Water Meter
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2. Stop Cock
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5. Gate valves are used to control and prevent the flow of
liquids.
A water tank is to stores water for distribution through a
water supply system.
Copper tubing is used for supply of hot and cold tap
water, and gives a higher level of corrosion resistance.
4. Water Tank
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5. Copper Tubing
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3. Gate Valve
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6. 2.2 ELECTRICAL SUPPLY SYSTEM
ELECTRICAL SUPPLY ACT 1997 ACT-477
REGULATION 15- Apparatus, Conductor, Accessory, etc
1.Any conductor or apparatus that is exposed to weather, water, corrosion, under heating or used in
inflamation surroundings or in an explosive atmosphere shall be constructed installed, arranged, protected,
worked and maintained in such a manner as to prevent danger.
REGULATION 16- Switch, Switch Fuse, Fuse Switch, Circuit Beaker, Contractor, etc
3.Any fuse or circuit beaker shall be
A.Constructed and arranged in such a manner so as to break the current when it exceeds a given value for
a sufficient time to prevent danger.
B.Constructed, guarded or placed in a manned as to prevent danger of overheating. Arching from the
scattering or hot metal or other substance.
The ceiling fans in the buildings are specified
at 80cm wingspan, the optimum size for a
medium space, classrooms etc.
The building uses gang switches, ranging
from 1, to 4-gang switches. Those located in
long rooms are wired 2-way, with a set
located at each ends of the classroom.
1. Ceiling Fan
2. Gang Switch
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7. A distribution board divides electrical power
feed into subsidiary circuits, while providing a
protective fuse or circuit breaker for each
circuit in a common enclosure.
An electricity meter, electric meter, electrical
meter, or energy meter is a device that
measures and record the amount of electric
energy used by a unit or an electrically
powered device.
These outlets are mainly located 110mm
above finished floor level. In the kitchen,
these are placed 1450mm above finished
floor level.
A recessed light is a light fixture that installed
into a hollow opening in a ceiling and
concentrates the light in a downward
direction as a broad floodlight or narrow
spotlight.
6. Recessed Lights
4. Meter Box
5. Standard Outlet
3. Distribution Box
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8. 2.3 SEWERAGE AND SANITARY SYSTEM
LAWS OF MALAYSIA ACT 133
SECTION 56 ( 1 )
No pipe used for the carrying of rainwater from any roof shall be used for carrying off the soil or drainage
from any water closet or any sullage water.
SECTION 56 ( 2 )
No water pipe, stack pipe or downspout used for the conveying of surface water from any premises shall be
used to serve or to act as a ventilating shaft to any drain or sewer.
SECTION 61
The local authority may erect or fix to any building such as pipes as are necessary for the proper ventilation
of the drains and sewer belonging to it.
WATER SERVICES INDUSTRY ACT 2006
SECTION 63
The government may direct the owner or management of any premises to install or construct a private
sewerage system or septic for the premises.
SECTION 59
Requiring all premises in at all times properly drained for sewerage in accordance to the Act
by a sufficient private connection pipe communicating with a public sewer or public sewerage
system.
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9. A floor drain is a plumbing fixture that is
installed on the floor of a structure, it is
designed to remove any standing water near
it. The floor around the trap is also sloped to
allow the water to flow to the drain.
A manhole is the opening to an underground
utility vault that used to house an access
p o i n t f o r m a k i n g c o n n e c t i o n s ,
inspection,valve adjustments or performing
maintenance on underground and buried
public utility.
A cowl is usually hood-shaped covering
connected to the sanitary services in a
building, an outlet of odors coming from the
system and prevent backflow.
2 gully traps are inserted under the wet
kitchen to accommodate the need of batch
cooking. One can act as a back up unit
should the need arise.
1. Floor Trap
4. Gully Trap
2. Manhole
3. Vent Cowl
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10. A P-trap is installed under the sinks in the
bathroom and kitchens, it is a plumbing
fixture that traps debris that has drained from
the sink and prevents it from forming a clog
deep within the plumbing system, and stops
sewer gases from passing into the home.
5. P-Trap
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11. 2.4 RAINWATER AND SURFACE WATER SYSTEM
WATER SERVICES INDUSTRY ACT 2006
SECTION 56 - Rainwater pipes not to be used as soil pipes
1.No pipe used for the carrying off rainwater from any roof shall be used for the purpose of carrying off the
soil or drainage from any privy or water closet.
SECTION 57 - Water pipes, etc, not to be used as ventilating shafts
1.No water pipe, stack pipe or down spout used for conveying surface water from any premises shall be
used or permitted to serve or to act as ventilating shaft to any drain or sewer.
SECTION 61 - Ventilating pipes to sewers.
1. The local authority may erect of fix to any building such as pipes as are necessary for the proper
ventilation of the drains and sewer belonging to it.
The rainwater downpipe is used in 2
instances in the building. From the roof
garden to the lower roof gutters, and from
there into the perimeter drains.
A rain gutter channel is a component of
water discharge system from the roof for a
building.
1. Rainwater Downpipe
2. Gutter
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12. Numerous sumps are connected to the
perimeter drains of the building to avoid
harmful, unwanted discharges into the public
drains. These units help manage surface
water of the building.
Subsoil Drains are embedded along the
green roofs of the higher levels. Water
moves through a few layers of permeable
surfaces and gets directed into this piping
network. This network drops off water into
rainwater downpipes every 15 meters.
4. Subsoil Drain
3. Sump
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13. 3.0 DRAWINGS
3.1 SITE PLAN
3.2 GROUND FLOOR PLAN
3.3 ROOF PLAN
3.4 REFLECTED CEILING PLAN
3.5 SCHEMATIC DIAGRAM
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14. 4.0 CONCLUSION
Taking into account the steep topographical context of the site, gravity along the gradient is
used to our advantage in expelling waste into their respective channels. This reduces the
need for active drainage systems, where costs can be expended on various other things.
Having a green roof helps in providing an extension of the ground as a temporary water-
catchment. Studying green roofs and roof gardens provided me with extra knowledge
regarding the removal of unwanted surface water.
This report completed the set of components crucial to the ‘breathability’ of a building, in its
ability to circulate/excrete the various wastes it - and it’s tenants - produce. I also realised the
job scope of an architect, having to consider the most minute details and the need to have a
level of understanding of related departments (engineering, technicals etc.).
Technicalities aside, the cadding of the diagrams and schematics provided to be good practice
in maintaining good drawing practices and conventions.
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15. 5.0 REFERENCES
● Chudley, Roy. 1988. Building Finishes, Fittings and Domestic Services. 2nd Edition.
Longman.
● Stein, Benjamin & Reynolds, John S. 2000. Mechanical and Electrical Equipment for
Buildings. New York, John Wiley.
● UBBL 1989.
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