Desert cooler, proper duct
Evaporative (desert) duct installation in Al Buddur
In Al Buddur, east Jeddah, evaporative duct installation suits workshops, factories and large industrial spaces with high ceilings. Alrabih's team mounts the evaporative unit on the roof and runs galvanised duct to distribute cool air efficiently across the wide 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.
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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 Buddur is an industrial and commercial district of large workshops and factories with very high ceilings and expansive interior spaces, where evaporative cooling is an energy-efficient option because it needs no heavy central units or high-consumption electricity. Most roofs here are flat and very strong to support the evaporative unit and equipment weight, but verifying rainwater drainage and adequate natural ventilation before installation is necessary. Heat and winds in the industrial area can affect performance, so a detailed site survey is essential to confirm evaporative cooling's efficiency for your space.
Al Buddur is in east Jeddah, an industrial district of large workshops and factories with very high ceilings.
Most Al Buddur workshops and factories have very high metal roofs and expansive floors, making it straightforward to mount the evaporative unit and distribute duct across large spaces.
The AC setup in Al Buddur
- 1
Large evaporative unit on high metal roof
The high metal roofs in Al Buddur workshops and factories provide an ideal site for secure and effective evaporative-unit mounting.
- 2
Large duct network distributing air across expansive floor
Galvanised duct branches into multiple runs to cover large industrial spaces and reach all areas of the workshop or factory floor.
- 3
Warm air exhaust openings in high walls or roof edges
Warm air and humidity exit through exhaust openings in roof edges or high external walls to achieve healthy air exchange across the industrial space.
Before the visit
Before our visit in Al Buddur
- 1
Inspect metal roof and supporting structures
Before the visit, confirm the metal roof and steel support beams are intact, and alert us to any damage or corrosion that might affect safe unit mounting.
- 2
Map areas to cool and ventilation opening locations
Explain the workshop or factory layout and identify sections and areas to cool, plus designate where warm air exhaust openings will be positioned based on space usage.
- 3
Confirm truck and equipment access to roof safely
Let us know if there is a crane or safe ladder access to the roof, and confirm heavy evaporative unit and duct can be transported without obstructing production or workshop activity.
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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 suit my large factory in Al Buddur?
Yes, most Al Buddur factories and workshops benefit from evaporative cooling to save energy. However, space size, heat and airflow need an initial survey to confirm efficiency.
Will the metal roofs here support the heavy evaporative unit?
Most workshop and factory roofs here are very robust and support heavy loads, but we inspect the roof during the first visit to confirm its strength and safe evaporative-unit installation.
Do industrial heat and wind affect cooling efficiency here?
Yes, intense heat and seasonal winds in Al Buddur can affect evaporative performance, so we measure temperature, humidity and wind in the initial survey to determine if evaporative cooling is suitable for your industrial space.
How do you handle water drainage from the evaporative unit in large industrial spaces?
We install a dedicated drainage system directing condensate water away from the factory or workshop, either through dedicated ground-level drain lines or openings in external walls according to the space's layout.
