HVAC for learning spaces
School HVAC in Dhahban
In Dhahban, Jeddah's far north, government and private schools sit between sea and mountains in hot, humid conditions. Alrabih designs central HVAC systems that withstand high coastal humidity and supply continuous fresh air to every classroom and hall.
- Even distribution
- Quiet in class
- Summer maintenance
Clients We're Proud to Serve
Organisations and companies that trusted Alrabih with their projects.
When a school needs a specialist
- 1
Hot classrooms affecting learning
When teachers report heat that breaks concentration and tires students by midday, the problem is usually in air distribution, not unit capacity. A site survey finds where it goes wrong and what is needed.
- 2
Unit noise interrupting the lesson
A unit in the wrong spot, a clogged filter or an unbalanced fan creates noise that distracts the class. We find the source on site and fix it, and at installation we choose units and routes suited to a classroom environment.
- 3
Upgrading the system over summer
The long summer break is the only window for installation or replacement work that needs extended hours inside classrooms. We plan with school management to finish before the first school day so the timetable is not affected.
Who it's for
Running a school that needs maintenance
We set up a preventive and corrective maintenance contract covering classrooms, the prayer room and corridors, carrying out major work in the summer break so the school year starts with a sound system.
Ask on WhatsAppBuilding a new school that needs AC design
We review drawings with the contractor and design air distribution and ductwork before ceilings close, so every classroom has even airflow and low noise from the first day of use.
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What our school work covers
- Survey of all rooms
- Air distribution and unit placement
- Units beyond students' reach
- Ductwork to SMACNA standards
- Preventive and corrective maintenance contracts
How we work
How we work
- 1
School building survey
We visit the school, measure classrooms, corridors and the prayer room, and record heat sources and loads in each space before making any recommendation.
- 2
System design and planning
We draw a layout showing unit positions, duct routes and ventilation openings, and agree an installation schedule with school management so work does not clash with classes.
- 3
Installation during the break
We carry out installation during the holiday or at times that do not disrupt school, mounting units in high or protected positions away from students.
- 4
Commissioning and handover
We run the full system and check air distribution in every classroom, measuring the air at desk level, then hand over to the school with a record of what was done.
Planned installation or scattered units?
| Alrabih | The usual way | |
|---|---|---|
| Air distribution | Designed for the classroom | Uneven, corners stay hot |
| Noise level | Siting and route reduce noise | Unit drowning out the teacher |
| Unit position | Out of students' reach | At hand height |
| Summer service | Planned before term starts | Faults appear in the first week |
| Fresh air supply | Designed into the layout | An open window or nothing |
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.
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
Dhahban is a remote coastal zone with medium-sized schools in relatively modern buildings. High coastal humidity and salt-laden air require corrosion-resistant components and intensive regular maintenance of outdoor units and ducts. Drainage and ventilation must be precisely engineered to prevent humidity and mould accumulation, and fresh air intake must be high-quality despite salt and moisture in the outside air.
Dhahban is Jeddah's far northern coast, a remote seaside area with newer schools in a humid coastal environment.
Dhahban schools use central HVAC systems with corrosion-resistant components due to high coastal salt and humidity.
The AC setup in Dhahban
- 1
Central system with salt and moisture-resistant components
Dhahban's coastal schools need central units with outdoor components specially coated to withstand salt and high humidity.
- 2
Ducts with multiple drain points
Duct design includes drain points at low spots and moisture-prone areas to prevent water pooling and mould.
- 3
Outdoor unit with coastal-condition protection
The outdoor unit is positioned away from direct winds if possible, with good airflow and monthly cleaning for salt and moisture protection.
Before the visit
Before our visit in Dhahban
- 1
Confirm site safety and access
Confirm the Dhahban site is safe for the team and equipment, especially roof access and exposed outdoor areas.
- 2
Prepare a safe water drainage point for maintenance
Identify a safe location for draining washwater from outdoor units and ducts without damage to school property or surroundings.
- 3
Arrange monthly maintenance schedule with school
Set a regular monthly schedule with the school for cleaning the outdoor unit and filters, due to high salt and humidity in the area.
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FAQ
Questions about School HVAC
How do you keep noise low inside the classroom?
Noise usually comes from high air velocity or an indoor unit mounted on a shared wall between two classrooms. We select units with low sound ratings, calculate air velocity at each outlet to prevent whistling, and insulate duct runs above the suspended ceiling. The exact unit position and diffuser angle are decided during a site survey of each room.
How do you handle the prayer room and corridors alongside classrooms?
The prayer room needs wide, quiet air distribution at low level above worshippers, which is quite different from a classroom. Corridors need enough cooling to prevent hot air from flowing into classrooms when doors open. We design each zone on its own air circuit with a separate thermostat; the final layout depends on floor area and ceiling height on site.
Can ductwork be added to an existing school building?
In most cases, yes. We check the gap between the ceiling and the slab, and how accessible the ceiling void is, before making any decision. We fabricate round or rectangular ducts in our own workshop to match the building's exact dimensions, and we route them to avoid structural columns and penetrations. Where ceiling space is too tight, cassette or concealed units may be the better fit.
Why are indoor units positioned out of students' reach?
A low-mounted unit in a room full of students is easily damaged: fins get bent, the drain port gets blocked, and the fan grille gets broken. We mount units at heights and positions that keep them clear of students, while still delivering cooled air down to the seated zone. The precise position is set after the team measures ceiling height and seating layout in each room.
Can the work be done during the school year?
Large tasks such as running new ductwork or replacing multiple units are scheduled during the long summer break to avoid any disruption to lessons. Routine maintenance and isolated repairs can be arranged outside school hours or at weekends in coordination with school management. Work inside classrooms during the school day requires a site assessment first to confirm it can be done without causing disruption.
Does salt in the air affect the AC system?
Yes, coastal salt causes rapid corrosion on metal parts, so we select outdoor components coated with salt and humidity-resistant protective layers.
Can high humidity cause mould in the ducts?
Yes, so we design multiple drain points in ducts and use moisture-resistant insulation, and clean ducts regularly during maintenance.
Does the outdoor unit need frequent maintenance?
Yes, salt and humidity require cleaning the outdoor unit every one or two months, especially during high heat season.
Can sea air enter the system through outdoor vents?
Yes, we install high-efficiency outdoor filters on fresh-air intakes to protect ducts and internal components from salt and excess moisture.
