Desert cooler, proper duct
Evaporative (desert) duct installation in Al Nuzlah Al Sharqiyah
In Al Nuzlah Al Sharqiyah, south Jeddah, evaporative duct installation serves villas and spacious residential properties with distributed single-storey layouts. Alrabih's team opens the roof and runs galvanised duct to reach every room and corner efficiently and safely.
- 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.
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.
Worked with us? Leave a reviewService areas
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
Most Al Nuzlah Al Sharqiyah buildings are modern villas and one or two-storey residential properties with large horizontal spans, spread widely with gardens and open space. This type of property benefits from evaporative cooling because open layouts allow even air distribution at lower cost. South Jeddah tends to be drier, making evaporative conditions better than the coastal districts. The open roof and wide horizontal space give freedom in choosing unit and duct placement, but sealing against summer moisture when opening the roof is essential.
Al Nuzlah Al Sharqiyah is in south Jeddah, a district of modern villas and horizontally spread residential properties with spacious layouts.
Most villas here are detached on large plots, and the roof permits a single central unit with duct extending to rooms.
The AC setup in Al Nuzlah Al Sharqiyah
- 1
Central roof unit with extended duct run
Spacious villas benefit from one roof unit extending cool air through long duct to rooms and living areas.
- 2
Separate side duct branches for each wing
If the villa has multiple wings, each wing gets a separate branch that is easier to control and clean.
- 3
Dual exhaust openings in living and bedroom areas
Hot air exits through separate openings in living and sleeping areas, reducing noise and improving comfort.
Before the visit
Before our visit in Al Nuzlah Al Sharqiyah
- 1
Provide safe roof access
Ensure there is a safe ladder or stairs to the roof, and tell us about any obstacles or nearby building work.
- 2
Choose your preferred unit location on the roof
Choose a roof location away from your bedroom and not directly above the kitchen or bathroom.
- 3
Know where your main electrical panel is
Tell us where your main panel is inside the villa so we can assess cable length and the circuit needed.
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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.
Our villa is very spacious with multiple wings, how do you distribute the cool air evenly?
A spacious villa needs one main duct branching to reach rooms and wings, and the site survey determines the duct length and diameter.
Can you easily access the villa roof during installation?
Yes, villas typically allow safe ladder access and adequate roof space, but we verify safety and entry points before starting.
South Jeddah is drier, but our summers are very hot, is evaporation enough?
The area's dryness enhances evaporation, and the site survey confirms whether it is sufficient for your comfort or you need additional cooling.
Where on my roof do you place the outdoor unit?
We choose a spot away from bedrooms with open airflow, and the survey identifies the best location and space needed.
