Is there roof access?
Rooftop Package Aircon South Africa put the whole machine in one box on the roof and duct the air down into the building, which keeps the plant out of the trading space entirely. It is the standard approach in supermarkets, showrooms and warehouses where the loads are large and the roof is available.
Describe the building and get rooftop package quotes.
Get the Best QuoteWhat a Package Unit Contains
- Compressors. Usually more than one, so capacity can step up and down.
- The condenser. Rejecting heat straight to the air at roof level.
- The evaporator. Cooling the supply air before it goes down the duct.
- Supply and return fans. Moving the air through the building's ductwork.
- Filters. Accessible from the roof, which makes servicing straightforward.
- Fresh air section. Often with economiser dampers for free cooling.
Where They Suit the Building
- Retail floors. Large open volumes with a flat roof above them.
- Showrooms. High glass loads and no wall space to spare.
- Warehouses. Where plant at floor level would be in the way.
- Factories. Process heat and large air volumes.
- Single storey. Short duct runs from roof to ceiling.
- Flat roofs. A structure that can carry the weight and allow access.
The Roof Is Half the Job
- Structural capacity. These are heavy, and the roof must be checked.
- Curbs and flashing. Where the duct passes through, and where leaks start.
- Crane access. Lifting the unit in is a planned operation on its own.
- Service access. A safe route onto the roof and around the plant.
- Vibration. Isolation so the building below does not hear it.
- Weatherproofing. The penetration is the detail that matters most.
Rooftop Package Aircon Prices
Ballpark rooftop package figures so you can check a quotation.
| Item | Ballpark price |
|---|---|
| Small package unit, installed | R140,000 - R280,000 |
| Medium package unit, installed | R260,000 - R520,000 |
| Large package unit, installed | R500,000 - R1,200,000 |
| Ductwork and diffusers, per zone | R25,000 - R90,000 |
| Crane hire and lifting | R18,000 - R85,000 |
| Roof curb, flashing and making good | R15,000 - R70,000 |
| Structural assessment | R8,000 - R35,000 |
| Planned maintenance, per unit per visit | R1,800 - R5,500 |
Prices JUST UPDATED. Ballpark figures, rounded, excluding VAT. They reflect typical South African aircon and refrigeration rates. They are not our prices or quotations, and no provider is bound by them. Confirm what each quotation includes, such as the unit capacity, the standard pipe run, the electrical work, making good and callout fees.
Get a plant price for your own roof rather than a range.
Get the Best QuoteWhat Affects the Price
- Capacity. The largest single line, and it follows the load calculation.
- Roof structure. Strengthening work can be a substantial item.
- Crane access. Street closure and reach distance both cost.
- Ductwork. How far the air has to travel inside the building.
- Controls. Economisers, staging and building management links.
- Trading hours. Night and weekend work to avoid closing the floor.
What to Include in Your Request
- The building. Floor area, volume and what it is used for.
- The roof. Type, pitch, age and whether access exists.
- Existing plant. What is there now and whether it is being replaced.
- Occupancy and hours. Including peak trading.
- Heat loads. Lighting, refrigeration, ovens or machinery.
- Site constraints. Crane access, street closure and trading hours.
Before the HVAC Company Quotes
- Get the roof assessed. Before the plant is specified, not after it arrives.
- Ask about the penetration detail. Curbs and flashing are where leaks begin.
- Ask about access for servicing. A safe roof route is a legal requirement, not a nicety.
- Ask about the economiser. Free cooling on mild days is real money in retail.
- Price the crane separately. So you can see what access is costing you.
- Agree the programme. Trading continues or it does not, and both have a price.
Rooftop Package Aircon FAQs
What is a rooftop package unit?
It is an air conditioner with everything - compressors, condenser, evaporator and fans - in one weatherproof casing that sits on the roof, with ducts carrying the air down into the building. Because the whole machine is outside, none of the plant takes up floor or ceiling space inside, which is why supermarkets and showrooms use them.
Can my roof carry one?
That is the first question to answer, and it needs a structural assessment rather than an opinion. Package units are heavy and the load is concentrated at the mounting points. On an older building, strengthening or a different mounting arrangement may be needed, and it is far cheaper to know that before the unit is ordered.
How is it serviced?
From the roof, which is one of the advantages: filters, coils and the fan section are all accessible without entering the trading area. What it requires is a safe permanent route onto the roof and safe working space around the plant, which needs to be designed in rather than improvised on the day.
Rooftop package or VRF?
Package units suit large single volumes with a flat roof above - retail floors, showrooms, warehouses. VRF suits buildings divided into many separately controlled spaces, such as offices. They solve different problems, and the load calculation and the floor plan between them usually make the choice obvious.
What is an economiser and is it worth it?
It is a damper arrangement that brings in outside air when the outside air is cool enough to do the cooling, so the compressors stay off. On a building that runs long hours in a climate with mild mornings, it saves a meaningful amount of electricity, and it is far cheaper fitted with the unit than retrofitted.
Rooftop package plant is one of the types providers listed on Aircon Hub quote for, alongside VRV systems, ducted and water cooled plant.
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