Desert cooler, proper duct
Evaporative (desert) duct installation in Al Sulaimaniyah
In Al Sulaimaniyah, central Jeddah, evaporative duct installation serves villas and small office buildings with accessible roofs. We mount the cooler on the roof, run duct to the various rooms, and fit regular exhaust openings for even air distribution.
- 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.
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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”
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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 Sulaimaniyah is a mixed residential neighbourhood with villas and small multi-storey buildings with pitched roofs available for mounting. The internal spaces in these structures are moderate-sized, and roofs are typically free of major obstructions, making cooler and duct placement straightforward. Evaporative cooling is effective here because the spaces are neither too large nor cramped, and air naturally spreads through the distributed openings on each floor.
Al Sulaimaniyah is in central Jeddah, a mixed residential neighbourhood of villas and small office buildings with accessible roofs.
Most villas and small buildings here have one or two roof sections, and typically need moderate-sized duct runs covering several rooms efficiently.
The AC setup in Al Sulaimaniyah
- 1
Roof-mounted cooler for villa or small building
Villas and small buildings in Al Sulaimaniyah can accommodate a single roof-mounted cooler serving most rooms through a unified duct run.
- 2
Galvanised duct distributed across floors
The duct runs from the roof down through multiple floors, with exhaust openings on each floor to distribute air evenly.
- 3
Roof sealing against weather and dust
After installation we seal all openings and the area around the duct to prevent water and dust infiltration into the building.
Before the visit
Before our visit in Al Sulaimaniyah
- 1
Confirm safe roof access
Verify that stairs or roof access are safe and easy to navigate before the visit date.
- 2
Clear space on the roof
Remove any temporary items or unnecessary equipment from the roof before the visit so we can choose the optimal cooler position.
- 3
Coordinate the visit time with the household
Ensure villa occupants will be available on the visit day to facilitate access to the roof and interior rooms.
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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.
Is evaporative duct cooling suitable for our Al Sulaimaniyah villa?
Yes, if your roof is accessible and your internal spaces are moderate-sized. We survey the villa to confirm its size and room layout suit the system.
Our villa roof is crowded with equipment, can you still install the cooler?
Possibly, but we need adequate clear space. We coordinate with the villa owner to find the best roof position away from other equipment like water tanks and heaters.
Our summer humidity is high, will evaporative cooling still work well?
It depends on humidity levels. The site survey will determine whether evaporative cooling alone is sufficient or if you need supplementary air conditioning.
How do we avoid roof leaks after opening it for installation?
We open the roof with care and mount the cooler on an insulated base, then seal the area around the duct opening with waterproof and dust-resistant materials.
