The document provides details on the lighting and acoustic design of a proposed community library in Sentul, Kuala Lumpur. It includes: 1. An introduction describing the library as having an area of 1800-2000 sqm and serving to engage the local community. 2. Calculations for the artificial lighting design of a discussion room and cafe area within the library, determining the required number and layout of light fixtures. 3. Calculations of the reverberation time for the discussion room and sound reduction index for the cafe to evaluate the acoustic performance of the spaces.

1. SCHOOL OF ARCHITECTURE , BUILDING & DESIGN
BACHELOR OF SCIENCE ( ARCHITECTURE )
BUILDING SCIENCE 2 [ BLD 61303 ]
PROJECT 2 - INTEGRATION PROJECT
TUTOR - MR AZIM
CHIA WEE MIN
0315186

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TABLE OF CONTENT
1.0 Introduction To Studio Design
2.0 Lighting
2.1 Artificial Lighting For Discussion Room
2.2 Artificial Lighting For Cafe
2.3 Ecotect for Cafe
2.4 PSALI for Discussion Room
2.5 PSALI for Cafe
3.0 Acoustic
3.1 Reverberation Time for Discussion Room
3.2 Sound Reduction Index for Cafe

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1.0 INTRODUCTION TO STUDIO DESIGN
NAME COMMUNITY LIBRARY IN SENTUL
LOCATION JALAN HAJI SALLEH
FUNCTION FUNCTIONED AS A COMMUNITY LIBRARY BUT ALSO REACT WITH
PUBLIC REALM
DESIGN STATEMENT LIBRARY AREA AROUND 1800 M2 TO 2000 M2

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2.0 ARTIFICIAL LIGHTING
2.1 ARTIFICIAL LIGHTING FOR DISCUSSION ROOM ( 2ND FLOOR )

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DISCUSSION ROOM
LIGHT TYPE ( Philips Down Light )
General Specs
Application Down light
Color White
Material Aluminum & Synthetics
Lamp Base & wattage LED 12 W
Color Temperature 2700K, 6500K
Dimensions ( L x W x H ) 132 x 132 x 81 mm
Lumen 1680 lm
Dimension Of Zone (m) 5 x 3
Total Floor Area / A (m2) 15 m2
Type Of Lighting Fixture Ceiling
Lumen Of Lighting
Fixtures / F (Lm)
1680 Lm
Height Of Luminaire (M) 3.4 m
Work Level (M) 0.8 m
Component Material Colour
Surface
Finishes
Reflectance
Value ( %)
Wall
Concrete Dark Grey Matte 15
Clear Glass Transparent Glossy 8
Aluminium
Frame Black Matte 10
Door
Glass Door Transparent Glossy 8
Aluminium
Frame Black Matte 10
Floor
Laminated
Wood Parquet Light Brown Glossy 35
Furniture
Wooden Chair Brown Matte 30
Wooden Table Brown Matte 30

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Mounting Height / H
( Hm)
2.6 m
Assumption Of
Reflectance Value
Ceiling = 0.7 Wall = 0.5 Floor = 0.2
Room Index / RI
𝑅𝐼 =
( 𝐿 × 𝑊 )
𝐻𝑚 ( 𝐿 + 𝑊 )
𝑅𝐼 =
(15)
2.6 (5 + 3 )
= 0.72
Utilization Factor / UF 0.34
Maintenance Factor /
MF
0.8
Illuminance Level / E
( Lux ) ( Ms1525 )
150
Number Of Lighting
Fixture / N
𝑁 =
𝐸 × 𝐴
( 𝐹 × 𝑈𝐹 × 𝑀𝐹 )
𝑁 =
150 × 15
( 1680 × 0.34 × 0.8 )
= 5
Fitting layout by
approximately / m
Smax = 1.0 x Hm
= 1.0 x 2.6
= 2.6 m

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2.2 ARTIFICIAL LIGHTING FOR CAFE ( FIRST FLOOR )

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CAFE
LIGHT TYPE ( Philips Down Light )
General Specs
Application Down light
Color White
Material Aluminum & Synthetics
Lamp Base & wattage LED 12 W
Color Temperature 2700K, 6500K
Dimensions ( L x W x H ) 132 x 132 x 81 mm
Lumen 1680 lm
Dimension Of Zone (m) 7.3 x 14
Total Floor Area / A (m2) 102.2 m2
Type Of Lighting Fixture Ceiling
Lumen Of Lighting
Fixtures / F (Lm)
1680 Lm
Height Of Luminaire (M) 3.4 m
Work Level (M) 0.8 m
Component Material Colour
Surface
Finishes
Reflectance
Value ( %)
Wall
Concrete Dark Grey Matte 15
Clear Glass Transparent Glossy 8
Aluminium
Frame Black Matte 10
Door
Glass Door Transparent Glossy 8
Aluminium
Frame Black Matte 10
Floor
Laminated
Wood Parquet Light Brown Glossy 35
Furniture
Wooden Chair Brown Matte 30
Wooden Table Brown Matte 30

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Mounting Height / H
( Hm)
2.6 m
Assumption Of
Reflectance Value
Ceiling = 0.7 Wall = 0.5 Floor = 0.2
Room Index / RI
𝑅𝐼 =
( 𝐿 × 𝑊 )
𝐻𝑚 ( 𝐿 + 𝑊 )
𝑅𝐼 =
(102.2)
2.6 (7 + 14 )
= 2.2
Utilization Factor / UF 0.46
Maintenance Factor /
MF
0.8
Illuminance Level / E
( Lux ) ( Ms1525 )
100
Number Of Lighting
Fixture / N
𝑁 =
𝐸 × 𝐴
( 𝐹 × 𝑈𝐹 × 𝑀𝐹 )
𝑁 =
100 × 102.2
( 1680 × 0.46 × 0.8 )
= 17
Fitting layout by
approximately / m
Smax = 1.0 x Hm
= 1.0 x 2.6
= 2.6 m

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2.3 ECOTECT FOR CAFE ( FIRST FLOOR )
DAYTIME ARTIFICIAL LIGHT
According to diagram above, area
near the front and back received
more natural daylight compare to
the middle part. Hence the
intensity is the highest
According to diagram above, it shows that
from blue to yellow represents the intensity of
light from low to high and the brightest is in
the middle of the cafe as there will not receive
any natural daylight. Hence, the artificial lights
focus on the middle part of the cafe.

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2.4 PSALI FOR DISCUSSION ROOM ( 2ND FLOOR )
Lighting arrangement for the discussion room. As the discussion room receive natural
daylight from 3 faces, the natural daylight that penetrate will lit up half of the
discussion room. According to MS1525, discussion room requires 150 Lux and
therefore min 5 nos of lights are required. For this discussion room, there are 6 nos of
lights placed and controlled by two switches.
During daytime, as half of the discussion room will receive the natural daylight, only
switch 2 is switched on to get enough luminance for the discussion room. During night
time, the space will not get any natural daylight so all of the lights are switched on.
This layout arrangement for the lighting is to reduce the amount of energy waste to lit
up the room during day.

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2.5 PSALI FOR CAFE ( FIRST FLOOR )
For cafe, there are 3 switches controlling the lights . during daytime, switch 1 and
switch 3 can be switched off as there are natural daylight penetrating into the space.
As for night time, all the lights are on as there will be no natural daylight penetrating
into the space.
Lighting arrangement for cafe. As the cafe
receive natural daylight at the front and back ,
the natural daylight that penetrate through will lit
up the front and back part of the cafe while the
middle part of the cafe will receive minimum
daylight. According to MS1525, cafe requires 100
Lux and therefore min 17 nos of lights are
required. For the cafe, there are 18 nos of lights
and 3 switches controlling 6 light each.

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3.0 ACOUSTIC
3.1 REVERBERATION TIME FOR DISCUSSION ROOM ( 2nd FLOOR )
Volume for Discussion Room
= 5m x 3m
= 15 m2

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REVERBERATION TIME (DISCUSSION ROOM) at 500 Hz during NON PEAK
Volume for Discussion Room
= 15 x 4
= 60 m3
𝑅𝑇 = 0.16 ×
𝑉𝑜𝑙𝑢𝑚𝑒𝑜𝑓𝑠𝑝𝑎𝑐𝑒
𝐴𝑏𝑠𝑜𝑟𝑝𝑡𝑖𝑜𝑛𝑎𝑟𝑒𝑎
𝑅𝑇 = 0.16 ×
60
9.948
𝑅𝑇 = 𝟎. 𝟗𝟕𝒔
The reverberation time for Discussion Room at 500 Hz for non-peak hour with 4 persons
occupying the space is 0.97 s which falls within the comfort reverberation time between
0.8s - 1.3s. This show that the acoustic absorption within this space is sufficient.
Component Material
Absorption
Coefficient ( 500
Hz ) , S Area ( m2 ), A
Sound
Absorption ( SA )
Wall
Concrete 0.05 12 0.6
Clear
Glass 0.1 29.6 2.96
Aluminum
Frame 0.25 2.4 0.6
Door
Glass Door 0.1 21.6 2.16
Aluminum
Frame 0.25 0.84 0.21
Floor
Laminated
Wood
Parquet 0.07 15 1.05
Furniture
Wooden
Chair 0.1 2.4 0.24
Wooden
Table 0.1 2.88 0.288
Occupant ( non
Peak ) 0.46 4 1.84
Total Absorption 9.948

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REVERBERATION TIME (DISCUSSION ROOM) at 500 Hz during PEAK
Component Material
Absorption
Coefficient ( 500
Hz ) , S Area ( m2 ), A
Sound Absorption
( SA )
Wall
Concrete 0.05 12 0.6
Clear Glass 0.1 29.6 2.96
Aluminum Frame 0.25 2.4 0.6
Door
Glass Door 0.1 21.6 2.16
Aluminum Frame 0.25 0.84 0.21
Floor
Laminated Wood
Parquet 0.07 15 1.05
Furniture Wooden Chair 0.1 2.4 0.24
Wooden Table 0.1 2.88 0.288
Occupant
( Peak ) 0.46 8 3.68
Total Absorption 11.788
Volume for Discussion Room
= 15 x 4
= 60 m3
𝑅𝑇 = 0.16 ×
𝑉𝑜𝑙𝑢𝑚𝑒𝑜𝑓𝑠𝑝𝑎𝑐𝑒
𝐴𝑏𝑠𝑜𝑟𝑝𝑡𝑖𝑜𝑛𝑎𝑟𝑒𝑎
𝑅𝑇 = 0.16 ×
60
11.79
𝑅𝑇 = 𝟎. 𝟖𝟏𝒔
The reverberation time for Zone 1 at 500 Hz for peak hour with 8 persons occupying
the space is 0.81 s which falls within the comfort reverberation time between 0.8s -
1.3s. This shows that the acoustic absorption within this space is sufficient.

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REVERBERATION TIME (DISCUSSION ROOM) at 2000 Hz during NON PEAK
Component Material
Absorption
Coefficient ( 2000
Hz ) , S Area ( m2 ), A
Sound Absorption
( SA )
Wall
Concrete 0.05 12 0.6
Clear Glass 0.07 29.6 2.072
Aluminum Frame 0.25 2.4 0.6
Door
Glass Door 0.07 21.6 1.512
Aluminum Frame 0.25 0.84 0.21
Floor
Laminated Wood
Parquet 0.06 15 0.9
Furniture Wooden Chair 0.1 2.4 0.24
Wooden Table 0.1 2.88 0.288
Occupant
( non Peak ) 0.51 4 2.04
Total Absorption 8.462
Volume for Discussion Room
= 15 x 4
= 60 m3
𝑅𝑇 = 0.16 ×
𝑉𝑜𝑙𝑢𝑚𝑒𝑜𝑓𝑠𝑝𝑎𝑐𝑒
𝐴𝑏𝑠𝑜𝑟𝑝𝑡𝑖𝑜𝑛𝑎𝑟𝑒𝑎
𝑅𝑇 = 0.16 ×
60
8.46
𝑅𝑇 = 𝟏. 𝟏𝟑𝒔
The reverberation time for Zone 1 at 2000 Hz for non-peak hour with 4 persons
occupying the space is 1.13 s which falls within the comfort reverberation time
between 0.8s - 1.3s. This shows that the acoustic absorption within this space is
sufficient.

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REVERBERATION TIME (DISCUSSION ROOM) at 2000 Hz during PEAK
Volume for Discussion Room
= 15 x 4
= 60 m3
𝑅𝑇 = 0.16 ×
𝑉𝑜𝑙𝑢𝑚𝑒𝑜𝑓𝑠𝑝𝑎𝑐𝑒
𝐴𝑏𝑠𝑜𝑟𝑝𝑡𝑖𝑜𝑛𝑎𝑟𝑒𝑎
𝑅𝑇 = 0.16 ×
60
10.502
𝑅𝑇 = 𝟎. 𝟗𝟏𝒔
The reverberation time for Zone 1 at 2000 Hz for peak hour with 8 persons occupying
the space is 0.91 s which falls within the comfort reverberation time between 0.8s -
1.3s. This shows that the acoustic absorption within this space is sufficient.
Component Material
Absorption
Coefficient
( 2000 Hz ) , S Area ( m2 ), A Sound Absorption ( SA )
Wall
Concrete 0.05 12 0.6
Clear Glass 0.07 29.6 2.072
Aluminum Frame 0.25 2.4 0.6
Door
Glass Door 0.07 21.6 1.512
Aluminum Frame 0.25 0.84 0.21
Floor
Laminated Wood
Parquet 0.06 15 0.9
Furniture Wooden Chair 0.1 2.4 0.24
Wooden Table 0.1 2.88 0.288
Occupant
(Peak ) 0.51 8 4.08
Total Absorption 10.502

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3.2 SOUND REDUCTION INDEX FOR CAFE ( FIRST FLOOR )
Sound reduction index (SRI) is used to measure the level of sound insulation provided by
structure such as wall, window, door, or ventilator.

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TRANSMISSION LOSS (CAFE)
Transmission Coefficient of material,
Building Element Material Surface Area (m2 ) SRI (dB)
Wall Concrete 101.7 42
Window
Clear Glass 46 26
Aluminum Frame 2 44
Door
Glass Door 43.8 26
Aluminum Frame 3.6 44
𝑆𝑅𝐼 = 10 𝑙𝑜𝑔
1
𝑇𝑟𝑎𝑛𝑠𝑚𝑖𝑠𝑠𝑖𝑜𝑛𝑐𝑜𝑒𝑓𝑓𝑖𝑐𝑖𝑒𝑛𝑡
1. Concrete Wall
𝑆𝑅𝐼 = 10 𝑙𝑜𝑔
1
𝑇𝑟𝑎𝑛𝑠𝑚𝑖𝑠𝑠𝑖𝑜𝑛𝑤𝑎𝑙𝑙
42 = 10 𝑙𝑜𝑔
1
𝑇𝑟𝑎𝑛𝑠𝑚𝑖𝑠𝑠𝑖𝑜𝑛𝑤𝑎𝑙𝑙
log 4.2 =
1
𝑇𝑟𝑎𝑛𝑠𝑚𝑖𝑠𝑠𝑖𝑜𝑛𝑤𝑎𝑙𝑙
𝑻𝒓𝒂𝒏𝒔𝒎𝒊𝒔𝒔𝒊𝒐𝒏𝑾𝒂𝒍𝒍 = 𝟔. 𝟑𝟏 × 𝟏𝟎−𝟓
2. Clear Glass Wall
𝑆𝑅𝐼 = 10 𝑙𝑜𝑔
1
𝑇𝑟𝑎𝑛𝑠𝑚𝑖𝑠𝑠𝑖𝑜𝑛𝑔𝑙𝑎𝑠𝑠𝑤𝑎𝑙𝑙
26 = 10 𝑙𝑜𝑔
1
𝑇𝑟𝑎𝑛𝑠𝑚𝑖𝑠𝑠𝑖𝑜𝑛𝑔𝑙𝑎𝑠𝑠𝑤𝑎𝑙𝑙
log 2.6 =
1
𝑇𝑟𝑎𝑛𝑠𝑚𝑖𝑠𝑠𝑖𝑜𝑛𝑔𝑙𝑎𝑠𝑠𝑤𝑎𝑙𝑙
𝑻𝒓𝒂𝒏𝒔𝒎𝒊𝒔𝒔𝒊𝒐𝒏𝑮𝒍𝒂𝒔𝒔𝑾𝒂𝒍𝒍 = 𝟐. 𝟓𝟏 × 𝟏𝟎−𝟑
3. Aluminum Frame Wall
𝑆𝑅𝐼 = 10 𝑙𝑜𝑔
1
𝑇𝑟𝑎𝑛𝑠𝑚𝑖𝑠𝑠𝑖𝑜𝑛𝑤𝑖𝑛𝑑𝑜𝑤𝑓𝑟𝑎𝑚𝑒
44 = 10 𝑙𝑜𝑔
1
𝑇𝑟𝑎𝑛𝑠𝑚𝑖𝑠𝑠𝑖𝑜𝑛𝑤𝑖𝑛𝑑𝑜𝑤𝑓𝑟𝑎𝑚𝑒
log 4.4 =
1
𝑇𝑟𝑎𝑛𝑠𝑚𝑖𝑠𝑠𝑖𝑜𝑛𝑤𝑖𝑛𝑑𝑜𝑤𝑓𝑟𝑎𝑚𝑒
𝑻𝒓𝒂𝒏𝒔𝒎𝒊𝒔𝒔𝒊𝒐𝒏𝑾𝒊𝒏𝒅𝒐𝒘𝑭𝒓𝒂𝒎𝒆 = 𝟑. 𝟗𝟖 × 𝟏𝟎−𝟓

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4. Glass Door
𝑆𝑅𝐼 = 10 𝑙𝑜𝑔
1
𝑇𝑟𝑎𝑛𝑠𝑚𝑖𝑠𝑠𝑖𝑜𝑛𝑔𝑙𝑎𝑠𝑠𝑑𝑜𝑜𝑟
26 = 10 𝑙𝑜𝑔
1
𝑇𝑟𝑎𝑛𝑠𝑚𝑖𝑠𝑠𝑖𝑜𝑛𝑔𝑙𝑎𝑠𝑠𝑑𝑜𝑜𝑟
log 2.6 =
1
𝑇𝑟𝑎𝑛𝑠𝑚𝑖𝑠𝑠𝑖𝑜𝑛𝑔𝑙𝑎𝑠𝑠𝑑𝑜𝑜𝑟
𝑻𝒓𝒂𝒏𝒔𝒎𝒊𝒔𝒔𝒊𝒐𝒏𝑮𝒍𝒂𝒔𝒔𝑫𝒐𝒐𝒓 = 𝟐. 𝟓𝟏 × 𝟏𝟎−𝟑
5. Aluminum Frame Door
𝑆𝑅𝐼 = 10 𝑙𝑜𝑔
1
𝑇𝑟𝑎𝑛𝑠𝑚𝑖𝑠𝑠𝑖𝑜𝑛𝑑𝑜𝑜𝑟𝑓𝑟𝑎𝑚𝑒
44 = 10 𝑙𝑜𝑔
1
𝑇𝑟𝑎𝑛𝑠𝑚𝑖𝑠𝑠𝑖𝑜𝑛𝑑𝑜𝑜𝑟𝑓𝑟𝑎𝑚𝑒
log 4.4 =
1
𝑇𝑟𝑎𝑛𝑠𝑚𝑖𝑠𝑠𝑖𝑜𝑛𝑑𝑜𝑜𝑟𝑓𝑟𝑎𝑚𝑒
𝑻𝒓𝒂𝒏𝒔𝒎𝒊𝒔𝒔𝒊𝒐𝒏𝑫𝒐𝒐𝒓𝑭𝒓𝒂𝒎𝒆 = 𝟑. 𝟗𝟖 × 𝟏𝟎−𝟓

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SOUND REDUCTION INDEX CALCULATION (CAFÉ)
𝑆𝑅𝐼 = 10 𝑙𝑜𝑔
1
𝑇𝑟𝑎𝑛𝑠𝑚𝑖𝑠𝑠𝑖𝑜𝑛𝑜𝑣𝑒𝑟𝑎𝑙𝑙
𝑇𝑜𝑣𝑒𝑟𝑎𝑙𝑙 =
𝑆 𝑛 ∗ 𝑇𝑛
𝑇𝑜𝑡𝑎𝑙 𝑠𝑢𝑟𝑓𝑎𝑐𝑒 𝑎𝑟𝑒𝑎
𝑇𝑜𝑣𝑒𝑟𝑎𝑙𝑙
=
6.42 × 10−4
+ 1.15 × 10−1
+ 7.96 × 10−5
+ 1.10 × 10−1
+ 1.43 × 10−4
197.1
= 1.15 x 10 -3
𝑆𝑅𝐼 = 10 𝑙𝑜𝑔
1
𝑇𝑟𝑎𝑛𝑠𝑚𝑖𝑠𝑠𝑖𝑜𝑛𝑜𝑣𝑒𝑟𝑎𝑙𝑙
𝑆𝑅𝐼 = 10 𝑙𝑜𝑔
1
1.15 × 10−3
𝑆𝑅𝐼 = 10 log
1
1.15 × 10−3
SRI = 29.4 dB
Based on the calculation, the sound reduction index value of the whole open space of
the cafe is 29.4 dB.
Sound Reduction
Index
Hearing Conditions
35 dB or less
Normal speech can be understood quite easily and distinctly
through the walls
35 to 40 dB
Loud speech can be understood fairly well. Normal speech can be
heard but not easily understood
40 to 45 dB
Loud speech can be heard, but it is not easily intelligible. Normal
speech can be heard only faintly, if at all.
Material SRI ( dB )
Surface area
( m2 ) ( S)
Transmission
Coefficient ( T) ST
Concrete 42 101.7 6.31 x 10 -5 6.42 x 10 -4
Clear
glass 26 46 2.51 x 10 -3 1.15 x 10 -1
Aluminum
Frame 44 2 3.98 x 10 -5 7.96 x 10 -5
Glass
Door 26 43.8 2.51 x 10 -3 1.10 x 10 -1
Aluminum
Frame 44 3.6 3.98 x 10 -5 1.43 x 10 -4
197.1

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45 to 50 dB
Loud speech can be faintly heard but not understood. Normal
speech is inaudible
55 dB or greater
Very loud sounds, such as loud singing, brass musical instruments or a
radio at full volume can be heard faintly or not at all.
According to the general sound environment, the value is categorized as less than 35dB
which is loud according to the normal conversation and can be heard distinctly through
the walls. This cafe spaces uses variety of materials such as concrete, glass, and
aluminum. To be able to achieve better acoustic absorption, the balance use of
effective materials is important, it helps the overall reduction of sound transmission
between spaces.