A louvred pergola in Pretoria is an aluminium roof whose blades rotate, so one structure gives full shade over a patio in January and lets the low winter sun through in June. It costs R2,600 to R3,900 per square metre supplied and installed, and unlike a folding-arm awning it stays up in a Highveld storm because the blades are carried on a fixed post-and-beam frame.
What it costs by area
| Roof size | Area | Covers | Supplied & installed |
|---|---|---|---|
| 3m × 3m | 9m² | A braai corner or seating nook | R23,000 – R35,000 |
| 3m × 4m | 12m² | A table for six | R31,000 – R47,000 |
| 4m × 5m | 20m² | A full outdoor room | R52,000 – R78,000 |
| 4m × 7m | 28m² | Stoep the length of the house | R73,000 – R109,000 |
Bands are supplied-and-installed in powder-coated extruded aluminium on posts or a wall bracket, with manual crank operation. A motor adds R6,000 to R12,000 per roof; a rain sensor that closes the blades unattended adds R3,000 to R5,000. Blade spans over about 4m need an intermediate beam.
Closed, it is a roof; open, it is a pergola
The blades are aluminium extrusions with a drainage channel along each edge. Rotated flat they overlap and seal, and the water runs down the channels into the perimeter beam and out through the posts, so a closed louvred roof sheds a Highveld downpour like a solid one. Rotated to 45 degrees they throw striped shade and let hot air out from underneath, which a solid roof cannot do. Rotated fully open they let the whole winter sun through. That is the entire argument for the product in Pretoria, where the same stoep needs to reject sun for five months and collect it for three.
Why it beats a folding-arm awning here
Both give adjustable shade. The difference is what happens in a summer storm. A retractable awning is rated to about 38km/h and has to be wound in before the gust front arrives, which in practice means it is either wound in all summer or it eventually gets damaged. A louvred roof sits on a fixed post-and-beam frame engineered for the same wind as a carport, so it stays up and simply closes. Against that, it costs roughly two to three times as much for the same covered area, and it needs footings or a structural wall fixing rather than four wall anchors.
A fixed timber or steel frame with no moving parts is the cheaper answer again — those are on the pergolas in Pretoria page — and a solid sheeted roof over the whole area is a patio cover.
Approval and the structure underneath
A louvred pergola on posts is a fixed roofed structure, so the City of Tshwane treats it the way it treats a carport, and an estate design panel will want the colour and the post positions before anything is cast. Both processes run in parallel and are set out under council approval for a carport in Pretoria. KB quotes the louvred roof off the same measure and the same crew as carports in Pretoria, which is why the two are usually priced together.
Louvred pergola questions
How much is a louvred pergola in Pretoria?
R2,600 to R3,900 per square metre supplied and installed, so a 3m by 4m roof runs R31,000 to R47,000 and a 4m by 5m R52,000 to R78,000. A motor adds R6,000 to R12,000 and a rain sensor R3,000 to R5,000.
Is a louvred roof waterproof when closed?
Yes. Each blade carries a drainage channel along its edge, and closed blades overlap and drain into the perimeter beam and down through the posts. A closed louvred roof sheds a Highveld downpour the way a sheeted roof does.
Does a louvred pergola need council approval?
Yes, usually. A louvred pergola on posts is a fixed roofed structure, so the City of Tshwane treats it as it treats a carport, and an estate design panel will want the colour and post positions before footings are cast.