Desert cooler, proper duct
Evaporative (desert) duct installation in Al Wadiyah
In Al Wadiyah, north Jeddah, evaporative duct installation suits modern villas and residential blocks with high roofs and spacious interiors. The cooler anchors securely to the roof and the duct extends to cover all rooms and areas.
- 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.
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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 Wadiyah is a modern residential area with ordered urban planning and villas and apartment blocks with high, safe roofs, with spacious interiors supporting efficient evaporative duct distribution. Roofs here are typically straight and clear, simplifying cooler installation, but the building's structural capacity to support the cooler, duct and water weight must be verified beforehand. Coordination with the compound manager or villa owner is essential to identify the optimal cooler site and duct route, and to ensure no conflict with other roof structures or building features.
Al Wadiyah is in north Jeddah, a modern residential area of villas and apartment blocks with uniform spacing and secure roofs.
Most villas and apartment blocks in Al Wadiyah feature high, straight roofs supporting cooler installation, and their spacious interiors allow main duct runs with multiple branches.
The AC setup in Al Wadiyah
- 1
Roof-mounted cooler with main duct and multiple branches
The cooler anchors to the villa or building roof and the main duct branches to serve rooms and areas with balanced delivery.
- 2
Adjustable outlets in each room
Each room or zone has an adjustable outlet allowing the occupant to control the volume of cooled air entering.
- 3
Exhaust openings on exterior walls and verandas
Exhausted air exits through distributed openings on exterior walls and verandas, ensuring efficient indoor air renewal.
Before the visit
Before our visit in Al Wadiyah
- 1
Clear the roof of stored materials and obstacles
Remove any furniture or stored items from the planned cooler site, and clear the area of sand and dust.
- 2
Identify a safe parking spot near the villa
Let us know the nearest safe parking point for the team, and ensure the vehicle can reach it without obstruction.
- 3
Verify power and water availability near the roof
The cooler requires a safe electrical breaker and water line near the installation site. Confirm both are available before the visit day.
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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.
My villa has a large living room and separate bedrooms, how does the duct deliver air evenly?
The duct branches with adjustable outlets in each zone. These are tuned to balance cooled air flow between the living area and bedrooms to your preference.
The street outside the villa is fairly narrow, does that affect the team getting in with equipment?
We arrange in advance to identify the nearest safe parking point. Most installation equipment is carried by hand from the vehicle to the villa with ease.
Al Wadiyah is very hot in summer, can the cooler handle such high temperatures?
The cooler is designed for very high temperatures, but efficiency depends on relative humidity. On extremely hot, humid days efficiency may drop slightly, which is normal.
Does water drainage from the cooler affect the building's foundation?
No, we select a safe drainage point away from the villa or building foundation. Excess water is directed through pipes to a safe drainage system or garden area, keeping it away from structural elements.
