Desert cooler, proper duct
Evaporative (desert) duct installation in Al Baghdadiyah Al Gharbiyah
In Al Baghdadiyah Al Gharbiyah, central Jeddah, evaporative duct installation suits homes and shops needing distributed cooling through ceiling outlets. Alrabih's team opens and seals the roof against rain and dust, then runs galvanised duct sized for the space.
- 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.
Ask on WhatsApp
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.
Split AC installation
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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.
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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 Baghdadiyah Al Gharbiyah mixes modern villas and commercial buildings with flat roofs and cavity space that allows duct runs between ceiling and roof. This layout offers flexibility in siting the evaporative unit and distributing air, yet demands close planning to route the duct without blocking roof movement or drawing heat from exposed areas.
Al Baghdadiyah Al Gharbiyah sits in central Jeddah, a district of modern homes and shops with flat roofs and open architectural spacing.
Most villas and shops here have flat roofs with sufficient clearance to run evaporative duct without cramping interior space.
The AC setup in Al Baghdadiyah Al Gharbiyah
- 1
Galvanised duct distributed from living-area roof
In villas and shops here, we run the main duct from the living area roof opening, then distribute to other spaces through secondary ceiling outlets in partition areas.
- 2
Architectural ceiling cavity accommodates large-diameter duct
Most modern buildings here have architectural cavity between ceiling and roof that provides a safe route for large-bore duct without cramping the interior.
- 3
Exhaust openings spaced along the facade
We space exhaust openings along the outer facade or shaded roof areas to allow used air to exit freely.
Before the visit
Before our visit in Al Baghdadiyah Al Gharbiyah
- 1
Confirm the cooler position on the roof
Before the visit, agree with us on the best roof position for the cooler, ensuring it does not block skylights or roof access.
- 2
Clarify which spaces need cooling
Tell us which spaces need cooling, bedrooms, living areas or shop floor, so we can plan duct routes accurately.
- 3
Ensure roof access from inside is clear
Make sure the interior access to the roof opening is unobstructed and clear of furnishings or hanging items that could get in the way.
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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 a modern villa here in Al Baghdadiyah?
Yes, if the villa has a flat roof and enough underroof space. We survey the site first to confirm evaporative cooling suits your space before starting.
How do you run ducts through a villa with a complex roof or multiple sections?
We plan duct routes based on your roof shape and interior partitions, ensuring even air distribution across all spaces without blocking maintenance access on the roof.
Does roof heat impact the evaporative cooler's performance?
Yes, exposed flat roofs absorb solar heat, so we site the cooler carefully and may recommend thermal insulation to boost efficiency in hot periods.
How do you protect the roof from water leaks after opening it?
We open the roof carefully, install the cooler and duct, then seal the opening and surround with leak-proof material before finishing to keep water and moisture out.
