Desert cooler, proper duct
Evaporative (desert) duct installation in Al Tawfeeq
In Al Tawfeeq, east Jeddah, evaporative duct installation suits modern villas and mansions with high ceilings and large interior spaces. The team opens the roof securely and channels cool air through galvanised duct to the living areas and commercial spaces.
- 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 Tawfeeq is a modern district of villas and mansions with high ceilings and spacious interior designs, where evaporative cooling offers an economical option instead of heavy central units. Most villa roofs here are flat and easily accessible, but verifying the duct path through suspended ceilings and interior walls before installation is important. The area's humidity is moderate in some seasons, but a site survey determines whether evaporative cooling will deliver adequate comfort under local climate conditions.
Al Tawfeeq is in east Jeddah, a district of modern villas and mansions with high ceilings and contemporary architectural designs.
Most villas and mansions here are built with flat roofs and internal ventilation systems, making it straightforward to run evaporative duct through the interior spaces.
The AC setup in Al Tawfeeq
- 1
Rooftop evaporative unit with distributed duct for spacious villas
Modern Al Tawfeeq villas with flat roofs allow secure unit mounting and cool air distribution through multi-branch duct systems serving different rooms.
- 2
Return air openings in external walls
Warm return air from villa rooms exits through openings in external walls or side fencing to achieve healthy ventilation balance.
- 3
Dedicated water drainage system protecting the structure
Condensate from the evaporative unit drains safely away from villa foundations through dedicated lines with openings in the ground or external walls.
Before the visit
Before our visit in Al Tawfeeq
- 1
Verify roof strength and water drainage
Before the visit, confirm the flat roof is robust and properly slopes to drain rainwater without pooling around the future evaporative unit location.
- 2
Mark rooms to cool and return air opening locations
Specify which rooms and interior spaces you want cooled and identify where return air openings will be positioned based on your villa's layout.
- 3
Ensure team access to roof and equipment delivery
Let us know if there is safe rooftop access and nearby parking, and confirm the team can safely transport the unit and duct materials without disturbing neighbours.
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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 cooling suitable for my villa in Al Tawfeeq?
Yes, Al Tawfeeq's modern villas with high ceilings suit evaporative cooling if the spaces are connected and well-ventilated. A site survey confirms suitability for your home specifically.
How do you run the duct through suspended ceilings and interior walls?
We inspect suspended ceilings and interior walls before installation and plan the duct route to preserve the interior design. We use secure fittings to mount the duct away from electrical wiring.
Summer humidity here is high, will evaporative cooling suffice?
Al Tawfeeq's summer humidity can reduce the evaporative unit's efficiency, so we measure humidity and temperature in the initial survey to determine whether evaporative cooling alone is adequate or if additional AC is needed.
With the evaporative unit on the roof, how do you prevent water leaks indoors?
We carefully open the roof and install the evaporative unit with a sealed drainage system, then seal all openings with moisture and water-resistant material to protect the interior.
