Desert cooler, proper duct
Evaporative (desert) duct installation in Al Hazza'iyah
Evaporative duct installation in Al Hazza'iyah, north-east Jeddah, suits villas and shops with open spaces and accessible roofs. We mount the cooler on the roof and run galvanised duct to the rooms, delivering efficient cooling at low running costs.
- Sealed roof
- Galvanised duct
- Air changes
Clients We're Proud to Serve
Organisations and companies that trusted Alrabih with their projects.
When you need evaporative cooler duct
- 1
A large workshop or warehouse
Large industrial spaces get very hot in Jeddah summers and split units are expensive to run there. An evaporative cooler with distribution duct brings air to work areas at lower running cost, provided the space is ventilated and not sealed shut.
- 2
A majlis tent or seasonal space
Outdoor majlis areas and seasonal tents do not suit split AC units because of the structure. Evaporative duct delivers a cool air stream as long as the space is open enough for air changes, which the survey confirms.
- 3
Old duct with poor airflow
Old sheet duct cracks over time and air leaks from the joints before reaching the space. On site we check whether the problem is leaking duct, poor distribution, or the cooler size itself.
Who it's for
Need to cool a large workshop at reasonable running cost
We survey the workshop and check its ventilation, then run galvanised duct from the roof cooler to the work areas with exhaust openings that keep air moving through the space.
Ask on WhatsAppYou have an outdoor majlis that needs seasonal cooling
We check how open the majlis is and assess its structure, then design the duct route and exhaust openings so cool air reaches the seating area without humid air building up inside.
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What the work covers
- Weatherproof roof collar fitted
- G90 galvanised duct runs
- Branch and air outlet connections
- Exhaust openings for air changes
- Airflow check after start-up
How we work
How we work
- 1
Site survey first
We visit, measure the space and check how open it is, because evaporative cooling needs enough ventilation; without it humidity rises inside and the cooling effect drops.
- 2
Plan the duct route
We plan the main duct run, branches, air outlet positions and exhaust opening locations, and show you the layout before any work starts.
- 3
Install duct and seal roof
We open the roof, fit and seal the collar against leaks, then run the galvanised duct and hang it on proper supports so it does not sag.
- 4
Start-up and test
We run the evaporative cooler and check that air reaches every outlet and that the exhaust openings are working so fresh air is visibly moving through the space.
Planned duct or a quick run?
| Alrabih | The usual way | |
|---|---|---|
| Roof seal | Weatherproof, sealed collar | Silicone that cracks in heat |
| Sheet | G90 galvanised | Unspecified gauge |
| Exhaust | Sized openings for air changes | Left to chance |
| Space suitability | Confirmed by survey | Not checked |
| Duct supports | Fixed hangers along the full run | Duct left unsupported |
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 Hazza'iyah is a relatively modern residential district of detached villas with spacious roofs and better natural airflow than crowded areas. Open spaces and gardens around the homes allow long duct runs and effective air discharge, and the dry climate in the north-east makes evaporative cooling an economical choice for families seeking an alternative to heavy electrical units.
Al Hazza'iyah sits in north-east Jeddah, a modern residential area of detached villas with open, spacious roofs.
Most villas in Al Hazza'iyah have flat roofs clear of obstacles, which makes it straightforward to mount the cooler and main duct.
The AC setup in Al Hazza'iyah
- 1
Central roof cooler with main duct run
We mount the evaporative cooler on the villa's spacious flat roof and run the main galvanised duct from it to the main rooms.
- 2
Multiple exhaust openings in rooms
We create measured exhaust openings in room walls or windows to release excess air and maintain balance.
- 3
Roof sealed against water and dust
We seal all roof openings and connections with waterproof materials to prevent water leaks and desert dust infiltration.
Before the visit
Before our visit in Al Hazza'iyah
- 1
Confirm safe roof access route
Check that the stairs or entrance to the roof is safe and clear, and tell us if there is a lock or special door.
- 2
Identify which rooms need cooling
Prepare a list of the rooms you want cooled and their sizes, as this helps us calculate the duct size and opening locations.
- 3
Check nearby power supply availability
The cooler needs power nearby on the roof, so check whether an electrical circuit is close by or if the line needs running from elsewhere.
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FAQ
Questions about Evaporative (desert) duct installation
Does evaporative cooling work in Jeddah in summer?
Evaporative cooling relies on water evaporation and weakens when humidity is high. In Jeddah, humidity is higher near the coast and lower inland. The survey decides whether the space and the season are suitable, which is why we do not start before visiting the site.
Why do exhaust openings matter as much as the duct runs?
An evaporative cooler pushes fresh air in continuously. Without an exit path, humid air builds up inside and the felt temperature rises. Properly sized exhaust openings keep air moving through, not piling up, and that is the core of how this type of cooling works.
What sheet do you use for the duct?
We use G90 galvanised steel sheet, which resists rust in Jeddah's humid and salty air. The duct sections are formed in our workshop before being taken to site, then hung on supports along the run to stop them sagging.
Can one cooler supply duct to more than one area?
Duct can be branched from one unit to more than one outlet, but each branch reduces the airflow at every opening. The survey decides whether the cooler has enough output for the total area, or whether a separate unit for each wing is the better answer.
Can evaporative cooler duct run through a false ceiling?
Evaporative cooling depends on continuous air movement and exchange, which requires exhaust openings in the same space the duct serves. A false ceiling restricts that flow unless dedicated openings lead air out of the building. The site survey decides whether the structure allows it, because the duct run and the exhaust are designed together as one system, not separately.
Will evaporative cooling work in my Al Hazza'iyah villa?
Yes, Al Hazza'iyah is a dry district with good natural airflow and spacious roofs, which provide ideal conditions for evaporative cooling. We carry out a site survey to confirm the system suits your space.
How do you get the cooler up to the roof in Al Hazza'iyah?
Most villas here have safe access to the roof via internal or external stairs, and we confirm a clear path for the equipment before we start.
Jeddah's humidity might affect evaporative cooling, right?
Al Hazza'iyah in the north-east has lower humidity than the southern coastal areas, but the site survey confirms whether evaporative cooling will meet the performance you need in your location.
How many exhaust openings does the villa need?
The number of exhaust openings depends on the area to be cooled and the number of rooms, which we determine after the site inspection and duct layout.
