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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
Building Science 2 Project 2 Integration Project
Chia Wee Min 0315186
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
Building Science 2 Project 2 Integration Project
Chia Wee Min 0315186
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
Building Science 2 Project 2 Integration Project
Chia Wee Min 0315186
2.0 ARTIFICIAL LIGHTING
2.1 ARTIFICIAL LIGHTING FOR DISCUSSION ROOM ( 2ND FLOOR )
Building Science 2 Project 2 Integration Project
Chia Wee Min 0315186
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
Building Science 2 Project 2 Integration Project
Chia Wee Min 0315186
Mounting Height / H
( Hm)
2.6 m
Assumption Of
Reflectance Value
Ceiling = 0.7 Wall = 0.5 Floor = 0.2
Room Index / RI
๐‘…๐ผ =
( ๐ฟ ร— ๐‘Š )
๐ป๐‘š ( ๐ฟ + ๐‘Š )
๐‘…๐ผ =
(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
๐‘ =
๐ธ ร— ๐ด
( ๐น ร— ๐‘ˆ๐น ร— ๐‘€๐น )
๐‘ =
150 ร— 15
( 1680 ร— 0.34 ร— 0.8 )
= 5
Fitting layout by
approximately / m
Smax = 1.0 x Hm
= 1.0 x 2.6
= 2.6 m
Building Science 2 Project 2 Integration Project
Chia Wee Min 0315186
2.2 ARTIFICIAL LIGHTING FOR CAFE ( FIRST FLOOR )
Building Science 2 Project 2 Integration Project
Chia Wee Min 0315186
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
Building Science 2 Project 2 Integration Project
Chia Wee Min 0315186
Mounting Height / H
( Hm)
2.6 m
Assumption Of
Reflectance Value
Ceiling = 0.7 Wall = 0.5 Floor = 0.2
Room Index / RI
๐‘…๐ผ =
( ๐ฟ ร— ๐‘Š )
๐ป๐‘š ( ๐ฟ + ๐‘Š )
๐‘…๐ผ =
(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
๐‘ =
๐ธ ร— ๐ด
( ๐น ร— ๐‘ˆ๐น ร— ๐‘€๐น )
๐‘ =
100 ร— 102.2
( 1680 ร— 0.46 ร— 0.8 )
= 17
Fitting layout by
approximately / m
Smax = 1.0 x Hm
= 1.0 x 2.6
= 2.6 m
Building Science 2 Project 2 Integration Project
Chia Wee Min 0315186
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.
Building Science 2 Project 2 Integration Project
Chia Wee Min 0315186
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.
Building Science 2 Project 2 Integration Project
Chia Wee Min 0315186
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.
Building Science 2 Project 2 Integration Project
Chia Wee Min 0315186
3.0 ACOUSTIC
3.1 REVERBERATION TIME FOR DISCUSSION ROOM ( 2nd FLOOR )
Volume for Discussion Room
= 5m x 3m
= 15 m2
Building Science 2 Project 2 Integration Project
Chia Wee Min 0315186
REVERBERATION TIME (DISCUSSION ROOM) at 500 Hz during NON PEAK
Volume for Discussion Room
= 15 x 4
= 60 m3
๐‘…๐‘‡ = 0.16 ร—
๐‘‰๐‘œ๐‘™๐‘ข๐‘š๐‘’๐‘œ๐‘“๐‘ ๐‘๐‘Ž๐‘๐‘’
๐ด๐‘๐‘ ๐‘œ๐‘Ÿ๐‘๐‘ก๐‘–๐‘œ๐‘›๐‘Ž๐‘Ÿ๐‘’๐‘Ž
๐‘…๐‘‡ = 0.16 ร—
60
9.948
๐‘…๐‘‡ = ๐ŸŽ. ๐Ÿ—๐Ÿ•๐’”
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
Building Science 2 Project 2 Integration Project
Chia Wee Min 0315186
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
๐‘…๐‘‡ = 0.16 ร—
๐‘‰๐‘œ๐‘™๐‘ข๐‘š๐‘’๐‘œ๐‘“๐‘ ๐‘๐‘Ž๐‘๐‘’
๐ด๐‘๐‘ ๐‘œ๐‘Ÿ๐‘๐‘ก๐‘–๐‘œ๐‘›๐‘Ž๐‘Ÿ๐‘’๐‘Ž
๐‘…๐‘‡ = 0.16 ร—
60
11.79
๐‘…๐‘‡ = ๐ŸŽ. ๐Ÿ–๐Ÿ๐’”
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.
Building Science 2 Project 2 Integration Project
Chia Wee Min 0315186
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
๐‘…๐‘‡ = 0.16 ร—
๐‘‰๐‘œ๐‘™๐‘ข๐‘š๐‘’๐‘œ๐‘“๐‘ ๐‘๐‘Ž๐‘๐‘’
๐ด๐‘๐‘ ๐‘œ๐‘Ÿ๐‘๐‘ก๐‘–๐‘œ๐‘›๐‘Ž๐‘Ÿ๐‘’๐‘Ž
๐‘…๐‘‡ = 0.16 ร—
60
8.46
๐‘…๐‘‡ = ๐Ÿ. ๐Ÿ๐Ÿ‘๐’”
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.
Building Science 2 Project 2 Integration Project
Chia Wee Min 0315186
REVERBERATION TIME (DISCUSSION ROOM) at 2000 Hz during PEAK
Volume for Discussion Room
= 15 x 4
= 60 m3
๐‘…๐‘‡ = 0.16 ร—
๐‘‰๐‘œ๐‘™๐‘ข๐‘š๐‘’๐‘œ๐‘“๐‘ ๐‘๐‘Ž๐‘๐‘’
๐ด๐‘๐‘ ๐‘œ๐‘Ÿ๐‘๐‘ก๐‘–๐‘œ๐‘›๐‘Ž๐‘Ÿ๐‘’๐‘Ž
๐‘…๐‘‡ = 0.16 ร—
60
10.502
๐‘…๐‘‡ = ๐ŸŽ. ๐Ÿ—๐Ÿ๐’”
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
Building Science 2 Project 2 Integration Project
Chia Wee Min 0315186
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.
Building Science 2 Project 2 Integration Project
Chia Wee Min 0315186
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
๐‘†๐‘…๐ผ = 10 ๐‘™๐‘œ๐‘”
1
๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘๐‘œ๐‘’๐‘“๐‘“๐‘–๐‘๐‘–๐‘’๐‘›๐‘ก
1. Concrete Wall
๐‘†๐‘…๐ผ = 10 ๐‘™๐‘œ๐‘”
1
๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘ค๐‘Ž๐‘™๐‘™
42 = 10 ๐‘™๐‘œ๐‘”
1
๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘ค๐‘Ž๐‘™๐‘™
log 4.2 =
1
๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘ค๐‘Ž๐‘™๐‘™
๐‘ป๐’“๐’‚๐’๐’”๐’Ž๐’Š๐’”๐’”๐’Š๐’๐’๐‘พ๐’‚๐’๐’ = ๐Ÿ”. ๐Ÿ‘๐Ÿ ร— ๐Ÿ๐ŸŽโˆ’๐Ÿ“
2. Clear Glass Wall
๐‘†๐‘…๐ผ = 10 ๐‘™๐‘œ๐‘”
1
๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘”๐‘™๐‘Ž๐‘ ๐‘ ๐‘ค๐‘Ž๐‘™๐‘™
26 = 10 ๐‘™๐‘œ๐‘”
1
๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘”๐‘™๐‘Ž๐‘ ๐‘ ๐‘ค๐‘Ž๐‘™๐‘™
log 2.6 =
1
๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘”๐‘™๐‘Ž๐‘ ๐‘ ๐‘ค๐‘Ž๐‘™๐‘™
๐‘ป๐’“๐’‚๐’๐’”๐’Ž๐’Š๐’”๐’”๐’Š๐’๐’๐‘ฎ๐’๐’‚๐’”๐’”๐‘พ๐’‚๐’๐’ = ๐Ÿ. ๐Ÿ“๐Ÿ ร— ๐Ÿ๐ŸŽโˆ’๐Ÿ‘
3. Aluminum Frame Wall
๐‘†๐‘…๐ผ = 10 ๐‘™๐‘œ๐‘”
1
๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘ค๐‘–๐‘›๐‘‘๐‘œ๐‘ค๐‘“๐‘Ÿ๐‘Ž๐‘š๐‘’
44 = 10 ๐‘™๐‘œ๐‘”
1
๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘ค๐‘–๐‘›๐‘‘๐‘œ๐‘ค๐‘“๐‘Ÿ๐‘Ž๐‘š๐‘’
log 4.4 =
1
๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘ค๐‘–๐‘›๐‘‘๐‘œ๐‘ค๐‘“๐‘Ÿ๐‘Ž๐‘š๐‘’
๐‘ป๐’“๐’‚๐’๐’”๐’Ž๐’Š๐’”๐’”๐’Š๐’๐’๐‘พ๐’Š๐’๐’…๐’๐’˜๐‘ญ๐’“๐’‚๐’Ž๐’† = ๐Ÿ‘. ๐Ÿ—๐Ÿ– ร— ๐Ÿ๐ŸŽโˆ’๐Ÿ“
Building Science 2 Project 2 Integration Project
Chia Wee Min 0315186
4. Glass Door
๐‘†๐‘…๐ผ = 10 ๐‘™๐‘œ๐‘”
1
๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘”๐‘™๐‘Ž๐‘ ๐‘ ๐‘‘๐‘œ๐‘œ๐‘Ÿ
26 = 10 ๐‘™๐‘œ๐‘”
1
๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘”๐‘™๐‘Ž๐‘ ๐‘ ๐‘‘๐‘œ๐‘œ๐‘Ÿ
log 2.6 =
1
๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘”๐‘™๐‘Ž๐‘ ๐‘ ๐‘‘๐‘œ๐‘œ๐‘Ÿ
๐‘ป๐’“๐’‚๐’๐’”๐’Ž๐’Š๐’”๐’”๐’Š๐’๐’๐‘ฎ๐’๐’‚๐’”๐’”๐‘ซ๐’๐’๐’“ = ๐Ÿ. ๐Ÿ“๐Ÿ ร— ๐Ÿ๐ŸŽโˆ’๐Ÿ‘
5. Aluminum Frame Door
๐‘†๐‘…๐ผ = 10 ๐‘™๐‘œ๐‘”
1
๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘‘๐‘œ๐‘œ๐‘Ÿ๐‘“๐‘Ÿ๐‘Ž๐‘š๐‘’
44 = 10 ๐‘™๐‘œ๐‘”
1
๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘‘๐‘œ๐‘œ๐‘Ÿ๐‘“๐‘Ÿ๐‘Ž๐‘š๐‘’
log 4.4 =
1
๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘‘๐‘œ๐‘œ๐‘Ÿ๐‘“๐‘Ÿ๐‘Ž๐‘š๐‘’
๐‘ป๐’“๐’‚๐’๐’”๐’Ž๐’Š๐’”๐’”๐’Š๐’๐’๐‘ซ๐’๐’๐’“๐‘ญ๐’“๐’‚๐’Ž๐’† = ๐Ÿ‘. ๐Ÿ—๐Ÿ– ร— ๐Ÿ๐ŸŽโˆ’๐Ÿ“
Building Science 2 Project 2 Integration Project
Chia Wee Min 0315186
SOUND REDUCTION INDEX CALCULATION (CAFร‰)
๐‘†๐‘…๐ผ = 10 ๐‘™๐‘œ๐‘”
1
๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘œ๐‘ฃ๐‘’๐‘Ÿ๐‘Ž๐‘™๐‘™
๐‘‡๐‘œ๐‘ฃ๐‘’๐‘Ÿ๐‘Ž๐‘™๐‘™ =
๐‘† ๐‘› โˆ— ๐‘‡๐‘›
๐‘‡๐‘œ๐‘ก๐‘Ž๐‘™ ๐‘ ๐‘ข๐‘Ÿ๐‘“๐‘Ž๐‘๐‘’ ๐‘Ž๐‘Ÿ๐‘’๐‘Ž
๐‘‡๐‘œ๐‘ฃ๐‘’๐‘Ÿ๐‘Ž๐‘™๐‘™
=
6.42 ร— 10โˆ’4
+ 1.15 ร— 10โˆ’1
+ 7.96 ร— 10โˆ’5
+ 1.10 ร— 10โˆ’1
+ 1.43 ร— 10โˆ’4
197.1
= 1.15 x 10 -3
๐‘†๐‘…๐ผ = 10 ๐‘™๐‘œ๐‘”
1
๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘œ๐‘ฃ๐‘’๐‘Ÿ๐‘Ž๐‘™๐‘™
๐‘†๐‘…๐ผ = 10 ๐‘™๐‘œ๐‘”
1
1.15 ร— 10โˆ’3
๐‘†๐‘…๐ผ = 10 log
1
1.15 ร— 10โˆ’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
Building Science 2 Project 2 Integration Project
Chia Wee Min 0315186
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.

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Final report bsc 2

  • 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
  • 2. Building Science 2 Project 2 Integration Project Chia Wee Min 0315186 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
  • 3. Building Science 2 Project 2 Integration Project Chia Wee Min 0315186 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
  • 4. Building Science 2 Project 2 Integration Project Chia Wee Min 0315186 2.0 ARTIFICIAL LIGHTING 2.1 ARTIFICIAL LIGHTING FOR DISCUSSION ROOM ( 2ND FLOOR )
  • 5. Building Science 2 Project 2 Integration Project Chia Wee Min 0315186 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
  • 6. Building Science 2 Project 2 Integration Project Chia Wee Min 0315186 Mounting Height / H ( Hm) 2.6 m Assumption Of Reflectance Value Ceiling = 0.7 Wall = 0.5 Floor = 0.2 Room Index / RI ๐‘…๐ผ = ( ๐ฟ ร— ๐‘Š ) ๐ป๐‘š ( ๐ฟ + ๐‘Š ) ๐‘…๐ผ = (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 ๐‘ = ๐ธ ร— ๐ด ( ๐น ร— ๐‘ˆ๐น ร— ๐‘€๐น ) ๐‘ = 150 ร— 15 ( 1680 ร— 0.34 ร— 0.8 ) = 5 Fitting layout by approximately / m Smax = 1.0 x Hm = 1.0 x 2.6 = 2.6 m
  • 7. Building Science 2 Project 2 Integration Project Chia Wee Min 0315186 2.2 ARTIFICIAL LIGHTING FOR CAFE ( FIRST FLOOR )
  • 8. Building Science 2 Project 2 Integration Project Chia Wee Min 0315186 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
  • 9. Building Science 2 Project 2 Integration Project Chia Wee Min 0315186 Mounting Height / H ( Hm) 2.6 m Assumption Of Reflectance Value Ceiling = 0.7 Wall = 0.5 Floor = 0.2 Room Index / RI ๐‘…๐ผ = ( ๐ฟ ร— ๐‘Š ) ๐ป๐‘š ( ๐ฟ + ๐‘Š ) ๐‘…๐ผ = (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 ๐‘ = ๐ธ ร— ๐ด ( ๐น ร— ๐‘ˆ๐น ร— ๐‘€๐น ) ๐‘ = 100 ร— 102.2 ( 1680 ร— 0.46 ร— 0.8 ) = 17 Fitting layout by approximately / m Smax = 1.0 x Hm = 1.0 x 2.6 = 2.6 m
  • 10. Building Science 2 Project 2 Integration Project Chia Wee Min 0315186 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.
  • 11. Building Science 2 Project 2 Integration Project Chia Wee Min 0315186 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.
  • 12. Building Science 2 Project 2 Integration Project Chia Wee Min 0315186 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.
  • 13. Building Science 2 Project 2 Integration Project Chia Wee Min 0315186 3.0 ACOUSTIC 3.1 REVERBERATION TIME FOR DISCUSSION ROOM ( 2nd FLOOR ) Volume for Discussion Room = 5m x 3m = 15 m2
  • 14. Building Science 2 Project 2 Integration Project Chia Wee Min 0315186 REVERBERATION TIME (DISCUSSION ROOM) at 500 Hz during NON PEAK Volume for Discussion Room = 15 x 4 = 60 m3 ๐‘…๐‘‡ = 0.16 ร— ๐‘‰๐‘œ๐‘™๐‘ข๐‘š๐‘’๐‘œ๐‘“๐‘ ๐‘๐‘Ž๐‘๐‘’ ๐ด๐‘๐‘ ๐‘œ๐‘Ÿ๐‘๐‘ก๐‘–๐‘œ๐‘›๐‘Ž๐‘Ÿ๐‘’๐‘Ž ๐‘…๐‘‡ = 0.16 ร— 60 9.948 ๐‘…๐‘‡ = ๐ŸŽ. ๐Ÿ—๐Ÿ•๐’” 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
  • 15. Building Science 2 Project 2 Integration Project Chia Wee Min 0315186 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 ๐‘…๐‘‡ = 0.16 ร— ๐‘‰๐‘œ๐‘™๐‘ข๐‘š๐‘’๐‘œ๐‘“๐‘ ๐‘๐‘Ž๐‘๐‘’ ๐ด๐‘๐‘ ๐‘œ๐‘Ÿ๐‘๐‘ก๐‘–๐‘œ๐‘›๐‘Ž๐‘Ÿ๐‘’๐‘Ž ๐‘…๐‘‡ = 0.16 ร— 60 11.79 ๐‘…๐‘‡ = ๐ŸŽ. ๐Ÿ–๐Ÿ๐’” 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.
  • 16. Building Science 2 Project 2 Integration Project Chia Wee Min 0315186 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 ๐‘…๐‘‡ = 0.16 ร— ๐‘‰๐‘œ๐‘™๐‘ข๐‘š๐‘’๐‘œ๐‘“๐‘ ๐‘๐‘Ž๐‘๐‘’ ๐ด๐‘๐‘ ๐‘œ๐‘Ÿ๐‘๐‘ก๐‘–๐‘œ๐‘›๐‘Ž๐‘Ÿ๐‘’๐‘Ž ๐‘…๐‘‡ = 0.16 ร— 60 8.46 ๐‘…๐‘‡ = ๐Ÿ. ๐Ÿ๐Ÿ‘๐’” 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.
  • 17. Building Science 2 Project 2 Integration Project Chia Wee Min 0315186 REVERBERATION TIME (DISCUSSION ROOM) at 2000 Hz during PEAK Volume for Discussion Room = 15 x 4 = 60 m3 ๐‘…๐‘‡ = 0.16 ร— ๐‘‰๐‘œ๐‘™๐‘ข๐‘š๐‘’๐‘œ๐‘“๐‘ ๐‘๐‘Ž๐‘๐‘’ ๐ด๐‘๐‘ ๐‘œ๐‘Ÿ๐‘๐‘ก๐‘–๐‘œ๐‘›๐‘Ž๐‘Ÿ๐‘’๐‘Ž ๐‘…๐‘‡ = 0.16 ร— 60 10.502 ๐‘…๐‘‡ = ๐ŸŽ. ๐Ÿ—๐Ÿ๐’” 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
  • 18. Building Science 2 Project 2 Integration Project Chia Wee Min 0315186 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.
  • 19. Building Science 2 Project 2 Integration Project Chia Wee Min 0315186 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 ๐‘†๐‘…๐ผ = 10 ๐‘™๐‘œ๐‘” 1 ๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘๐‘œ๐‘’๐‘“๐‘“๐‘–๐‘๐‘–๐‘’๐‘›๐‘ก 1. Concrete Wall ๐‘†๐‘…๐ผ = 10 ๐‘™๐‘œ๐‘” 1 ๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘ค๐‘Ž๐‘™๐‘™ 42 = 10 ๐‘™๐‘œ๐‘” 1 ๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘ค๐‘Ž๐‘™๐‘™ log 4.2 = 1 ๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘ค๐‘Ž๐‘™๐‘™ ๐‘ป๐’“๐’‚๐’๐’”๐’Ž๐’Š๐’”๐’”๐’Š๐’๐’๐‘พ๐’‚๐’๐’ = ๐Ÿ”. ๐Ÿ‘๐Ÿ ร— ๐Ÿ๐ŸŽโˆ’๐Ÿ“ 2. Clear Glass Wall ๐‘†๐‘…๐ผ = 10 ๐‘™๐‘œ๐‘” 1 ๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘”๐‘™๐‘Ž๐‘ ๐‘ ๐‘ค๐‘Ž๐‘™๐‘™ 26 = 10 ๐‘™๐‘œ๐‘” 1 ๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘”๐‘™๐‘Ž๐‘ ๐‘ ๐‘ค๐‘Ž๐‘™๐‘™ log 2.6 = 1 ๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘”๐‘™๐‘Ž๐‘ ๐‘ ๐‘ค๐‘Ž๐‘™๐‘™ ๐‘ป๐’“๐’‚๐’๐’”๐’Ž๐’Š๐’”๐’”๐’Š๐’๐’๐‘ฎ๐’๐’‚๐’”๐’”๐‘พ๐’‚๐’๐’ = ๐Ÿ. ๐Ÿ“๐Ÿ ร— ๐Ÿ๐ŸŽโˆ’๐Ÿ‘ 3. Aluminum Frame Wall ๐‘†๐‘…๐ผ = 10 ๐‘™๐‘œ๐‘” 1 ๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘ค๐‘–๐‘›๐‘‘๐‘œ๐‘ค๐‘“๐‘Ÿ๐‘Ž๐‘š๐‘’ 44 = 10 ๐‘™๐‘œ๐‘” 1 ๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘ค๐‘–๐‘›๐‘‘๐‘œ๐‘ค๐‘“๐‘Ÿ๐‘Ž๐‘š๐‘’ log 4.4 = 1 ๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘ค๐‘–๐‘›๐‘‘๐‘œ๐‘ค๐‘“๐‘Ÿ๐‘Ž๐‘š๐‘’ ๐‘ป๐’“๐’‚๐’๐’”๐’Ž๐’Š๐’”๐’”๐’Š๐’๐’๐‘พ๐’Š๐’๐’…๐’๐’˜๐‘ญ๐’“๐’‚๐’Ž๐’† = ๐Ÿ‘. ๐Ÿ—๐Ÿ– ร— ๐Ÿ๐ŸŽโˆ’๐Ÿ“
  • 20. Building Science 2 Project 2 Integration Project Chia Wee Min 0315186 4. Glass Door ๐‘†๐‘…๐ผ = 10 ๐‘™๐‘œ๐‘” 1 ๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘”๐‘™๐‘Ž๐‘ ๐‘ ๐‘‘๐‘œ๐‘œ๐‘Ÿ 26 = 10 ๐‘™๐‘œ๐‘” 1 ๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘”๐‘™๐‘Ž๐‘ ๐‘ ๐‘‘๐‘œ๐‘œ๐‘Ÿ log 2.6 = 1 ๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘”๐‘™๐‘Ž๐‘ ๐‘ ๐‘‘๐‘œ๐‘œ๐‘Ÿ ๐‘ป๐’“๐’‚๐’๐’”๐’Ž๐’Š๐’”๐’”๐’Š๐’๐’๐‘ฎ๐’๐’‚๐’”๐’”๐‘ซ๐’๐’๐’“ = ๐Ÿ. ๐Ÿ“๐Ÿ ร— ๐Ÿ๐ŸŽโˆ’๐Ÿ‘ 5. Aluminum Frame Door ๐‘†๐‘…๐ผ = 10 ๐‘™๐‘œ๐‘” 1 ๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘‘๐‘œ๐‘œ๐‘Ÿ๐‘“๐‘Ÿ๐‘Ž๐‘š๐‘’ 44 = 10 ๐‘™๐‘œ๐‘” 1 ๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘‘๐‘œ๐‘œ๐‘Ÿ๐‘“๐‘Ÿ๐‘Ž๐‘š๐‘’ log 4.4 = 1 ๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘‘๐‘œ๐‘œ๐‘Ÿ๐‘“๐‘Ÿ๐‘Ž๐‘š๐‘’ ๐‘ป๐’“๐’‚๐’๐’”๐’Ž๐’Š๐’”๐’”๐’Š๐’๐’๐‘ซ๐’๐’๐’“๐‘ญ๐’“๐’‚๐’Ž๐’† = ๐Ÿ‘. ๐Ÿ—๐Ÿ– ร— ๐Ÿ๐ŸŽโˆ’๐Ÿ“
  • 21. Building Science 2 Project 2 Integration Project Chia Wee Min 0315186 SOUND REDUCTION INDEX CALCULATION (CAFร‰) ๐‘†๐‘…๐ผ = 10 ๐‘™๐‘œ๐‘” 1 ๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘œ๐‘ฃ๐‘’๐‘Ÿ๐‘Ž๐‘™๐‘™ ๐‘‡๐‘œ๐‘ฃ๐‘’๐‘Ÿ๐‘Ž๐‘™๐‘™ = ๐‘† ๐‘› โˆ— ๐‘‡๐‘› ๐‘‡๐‘œ๐‘ก๐‘Ž๐‘™ ๐‘ ๐‘ข๐‘Ÿ๐‘“๐‘Ž๐‘๐‘’ ๐‘Ž๐‘Ÿ๐‘’๐‘Ž ๐‘‡๐‘œ๐‘ฃ๐‘’๐‘Ÿ๐‘Ž๐‘™๐‘™ = 6.42 ร— 10โˆ’4 + 1.15 ร— 10โˆ’1 + 7.96 ร— 10โˆ’5 + 1.10 ร— 10โˆ’1 + 1.43 ร— 10โˆ’4 197.1 = 1.15 x 10 -3 ๐‘†๐‘…๐ผ = 10 ๐‘™๐‘œ๐‘” 1 ๐‘‡๐‘Ÿ๐‘Ž๐‘›๐‘ ๐‘š๐‘–๐‘ ๐‘ ๐‘–๐‘œ๐‘›๐‘œ๐‘ฃ๐‘’๐‘Ÿ๐‘Ž๐‘™๐‘™ ๐‘†๐‘…๐ผ = 10 ๐‘™๐‘œ๐‘” 1 1.15 ร— 10โˆ’3 ๐‘†๐‘…๐ผ = 10 log 1 1.15 ร— 10โˆ’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
  • 22. Building Science 2 Project 2 Integration Project Chia Wee Min 0315186 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.