Cooling fit for a mosque
Mosque HVAC in Al Salmiyah Al Sharqiyah
In Al Salmiyah Al Sharqiyah in south Jeddah, mosques serve mixed expatriate working communities in a diverse residential zone, so a balanced cooling system combining performance and efficiency is essential. Alrabih designs systems for even cold distribution while preserving the quiet for prayer and remembrance.
- Even distribution
- Quiet units
- Scheduled servicing
Clients We're Proud to Serve
Organisations and companies that trusted Alrabih with their projects.
When a mosque needs a specialist approach
- 1
Heat reaching the back rows
Cold air pools near the units and never reaches the back of the hall. In Jeddah's humidity, worshippers in the far rows feel the heat even with the system running. That is a design problem, not a unit fault.
- 2
Noise that disturbs prayer
Unit noise in a quiet hall distracts worshippers and breaks concentration. The right unit type, its position and the air velocity setting all reduce noise to the lowest possible level, and those choices are made at the survey.
- 3
A dome or high ceiling that traps heat
Hot air rises and collects under the dome, so the breathing level stays warm even with large units running. We set diffuser angles and air paths at the survey to push that hot layer out rather than cool over the top of it.
Who it's for
Building a new mosque that needs AC from the start
We join the design stage to fix duct routes and unit positions before ceilings are closed, so the installation is clean and efficient with no remedial work needed later.
Ask on WhatsAppYour existing mosque cools unevenly across the rows
We survey the existing system, find the cause of uneven distribution and propose changes to the airflow paths or units without disrupting the mosque.
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What the work covers
- Hall survey and airflow mapping
- Ductwork to SMACNA standard
- Units fitted at surveyed positions
- Airflow check across the rows
- Contracts scheduled between prayers
How we work
How we work
- 1
Mosque survey
We visit the mosque outside prayer times to measure the hall, ceiling height and dome, and agree diffuser positions, duct routes and unit locations before any work begins.
- 2
Design and fabrication
We design the system from the survey data and fabricate the ducts in our own workshop from G90 galvanised sheet, then prepare them for installation.
- 3
Installation at agreed times
We coordinate with mosque management to work between prayers or at times that do not interrupt activities, and we leave the hall clean at the end of each working day.
- 4
Testing and handover
We run the system and measure air distribution at the front and back rows and sound levels, adjusting the balance until comfort is even across the whole hall.
Designed for a mosque or units placed at random?
| Alrabih | The usual way | |
|---|---|---|
| Air distribution | Even across every row | Cold front, hot back |
| Sound | Assessed at survey | Not considered |
| Dome and high ceiling | Planned airflow paths | Hot layer left above |
| Maintenance | Scheduled between prayers | Visits that disrupt use |
| Startup scheduling | Programmed before each prayer | Manual, inconsistent start |
Everything your AC needs, from one team
From system design and duct fabrication to installation, commissioning and maintenance.
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Some of our work
Ductwork, rooftop units and diffusers, from work we've completed in Jeddah.
Customer reviews
What our customers say
- Muhammadramzan 2641
“MashaaAllah. Services are so good. Behaviour and kindness 100/100. Prices are less then Market. Fully recommended”
- shahzeb armani
“Wow. Prices are so comfortable. Outstanding services. People are so talented and nice”
- Tawfik AlyawerLocal Guide
“U can find all u need for air conditioning”
Your satisfaction matters to us! If you had a great experience with us, we'd love a 5-star rating and a kind review.
Worked with us? Leave a reviewService areas
We come to you anywhere in Jeddah
From Al Shiraa and Al Yaqout in the north to Al Thaghr and Al Quraiyat in the south, with our base in Al Aziziyah.
What sets this district apart
Al Salmiyah Al Sharqiyah is a diverse residential neighbourhood housing large expatriate communities from various nationalities and medium-rise apartment blocks with varying designs. Temperatures run very high because the zone is open and wide, and humidity is very high because the area sits right next to the sea and creek. Mosques here serve crowds that vary by prayer time and day, requiring flexible systems that adapt to changing attendance. Design focuses on reliable cold distribution, high energy efficiency, and protection from coastal salinity that affects external metals and components.
Al Salmiyah Al Sharqiyah lies in south Jeddah on the coast, a diverse residential zone very close to the sea and creek.
Al Salmiyah Al Sharqiyah mosques are medium-sized, holding 150 to 350 worshippers, and need additional filters and coastal salt protection.
The AC setup in Al Salmiyah Al Sharqiyah
- 1
Central cooling unit with coastal salt protection
We select units made from salt-resistant materials with high-humidity capability, with additional protective coatings on metal parts.
- 2
Advanced filters for salt and moisture capture
We install high-efficiency filters that capture salt particles and coastal pollutants before cold air enters the hall.
- 3
Enhanced drainage for high humidity
We design enhanced drainage that handles the large moisture quantities from the close coastal location.
Before the visit
Before our visit in Al Salmiyah Al Sharqiyah
- 1
Inspect the outdoor unit and facades
Check for existing salt damage on metal parts and identify the best location for the outdoor unit away from direct sea wind exposure.
- 2
Confirm existing drain lines
Confirm that drain lines exist and are sound, and identify where the AC condensate will drain according to the building design.
- 3
Mark a safe location for the outdoor unit
Identify a location on the roof or external space sheltered from direct sea wind, salt and moisture as much as possible.
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FAQ
Questions about Mosque HVAC
How do you make sure the far rows get enough cooling?
At the survey we set diffuser angles, air velocity and duct routing so cold air travels to the last row. After installation we measure the temperature difference between the front and back rows and adjust each diffuser's balance until that difference is as small as the space allows.
Can you work in a functioning mosque without disrupting prayers?
Yes. We agree a phased schedule with mosque management in advance and divide the work into sessions between prayers. Before each call to prayer we lift tools, cover any temporary openings and return the hall to a usable state, then resume afterwards.
What type of ductwork do you use in prayer halls?
We fabricate ducts in our own workshop from G90 galvanised sheet, round or rectangular as the design requires. We use Armaflex and Kimmco insulation and Foster sealants to limit heat gain and keep sound transmission through the ductwork as low as possible.
Can the system be set to start just before each prayer time?
Yes. The controls on Carrier, YORK, General, Midea, Gree and Smart Gold units support scheduled start and stop times. At the survey we confirm the scheduling options for the chosen units and programme the timings at handover, so the hall is already cool when worshippers arrive.
Can we cool only part of the hall when fewer people attend?
Yes, if the system is designed in zones. We divide the hall into sections, each with its own unit or closable outlets, so you run the front rows alone when few people attend and the whole hall for Friday prayer and occasions, cutting power use without affecting worshippers.
The mosque is very close to the sea and creek; does salt affect AC components?
Yes, coastal salt accumulates on the outdoor unit and metal parts, causing rapid corrosion. We select salt-resistant materials and recommend regular cleaning of the outdoor unit and additional protection with anti-corrosion coatings.
Humidity here is very high due to the sea; does that affect AC performance?
Yes, high humidity increases the cooling load. We select units with capacity sufficient to handle the high coastal moisture, and recommend regular drain flushing to prevent humidity buildup.
The neighbourhood has workers from many countries and mosque attendance varies; how does the system adapt?
We design the system with moderate capacity to handle attendance variations, and install controls that allow temperature adjustment throughout the day as needed.
Buildings around the mosque are both old and new; does that affect the design?
There may be different engineering constraints, but we visit the site and assess each one, integrating it into a design that suits the existing buildings.
