This document discusses lighting and acoustics considerations for mosques. It examines the use of natural lighting during the day and artificial lighting at night. Different light sources and their color temperatures are evaluated for their suitability. Acoustics in mosques must support hearing the imam, sermons, and Quran recitals. Sound system design requires simulation software to test speaker placement and avoid reflections. The system should have unattractive but effective speakers and microphones with simple controls. Audience absorption also impacts acoustics. With the right number and placement of speakers, even acoustically poor mosques can achieve good results.

1. Pusat Islam UiTM Seri Iskandar
Musahiddin bin Md Zainal 2010740055
Mohd Sufian bin Abd Rahim 2010536105
Hidayat bin Zamri 2010108475
Mohd Zakaria bin Osman 2010711253
Muhammad Daud bin Yusoff 2010545835

2. Faxade
Daylight
Night

3. • Qualities and quantities of illumination in mosques

4. Compact Fluorescent Lamp
(Twin CFT)
Fluorescent Lamp
7m
10m
5m 3m
1m
5m4m
4m 2m
2.5m

5. Natural lighting
during daytime
Natural + artificial
lighting during daytime
Artificial lighting during
night

6. Natural lighting (Daylight)
Artificial lighting + ambience
lighting (Night)

7. Cool White - 4100K
Daylight Fluo - 6500K
North Sky - 8500K
Warm White - 3000K
HPS - 2100K
Halogen – 3100K
Incandescent – 2700K
ColorTemperature

8. warm light source is used,
enhancing yellow and oranges
cool source is used
enhancing blues and greens
neutral light
source is used
Color Rendition
warm light source is usedcool source is used

9. Natural lighting
(Daylight)
Artificial lighting
(Night)
55 - 65 CRI = Fair color
rendition
0 – 55 CRI = Poor color rendition
0 – 55 CRI = Poor color
rendition
55 - 65 CRI = Fair color
rendition
75 - 85 CRI = Very
Good color rendition

10. Natural lighting at courtyard
(Daylight)
During night

11. Natural lighting in prayer hall (Daylight)
75 - 85 CRI = Very Good color rendition
Artificial lighting (Night)
0 – 55 CRI = Poor color rendition
Color rendering, expressed as a rating on the Color Rendering Index (CRI),
from 0-100, describes how a light source makes the color of an object appear to
human eyes and how well subtle variations in color shades are revealed. The
higher the CRI rating, the better its color rendering ability.

12. Attach to ColumnAttach to Ceiling
Acoustic : Pusat Islam UiTM Perak

13. There are three distinct acoustical requirements for mosques:
• to hear the namaz (prayer) orders of the Imam (prayer leader),
• to understand the sermon of the preacher,
• to listen to or join to the recital of the musical version of the Holy
Koran.
Therefore, at the design of a sound system, it is important to use a
good simulation data program. Here
a model of the building is made with a computer program. By using a
good simulation technician,
different materials, shapes and speakers can be tested in the computer
model and with good accuracy to real life, if the model is well designed
for its purpose.
The architect is often focused on his problems and targets, which are to
design a beautiful mosque. He is not so often aware of the acoustic
problems he might cause.

14. Only people inside Pusat Islam will
heard the sound

15. The sound system should follow the following simple but important
rules:
• Loudspeakers are usually unattractive, so they should be heard
but not seen.
• Selection of correct type, placement and number of loudspeakers
for the purpose.
• Selection of the right type of microphones and other signal
sources for the purpose.
• A simple and effective digital control system well programmed to
make the use of the
• system as easy as possible.
Sound system rules

16. People outside Pusat Islam will
heard the sound

17. Due to the often difficult acoustic environments in a mosque, it is
important to use loudspeakers with well-defined dispersion
characteristics as well as all other technical specifications suitable
for the purpose.
These data will give the designer the tools to avoid problematic
reflexions and dispersions in the building.
The audience with their clothes are usually the best absorbers
available in the mosque.
This also means, the more visitors the better the sound.
By using the correct number of loudspeakers, mounted at the right
places, even an acoustically poor mosque can get results much
better than expected.

18. The End
Thank You.. 