Carport Roof Replacement
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What is your carport roof made of?
Carport roof replacement prices in South Africa
| Roof option and size | Ballpark installed (2026) |
|---|---|
| Galvanised IBR 0.4 mm, per m² | R350 – R450 |
| Galvanised IBR 0.5 mm, per m² | R450 – R650 |
| Chromadek IBR, per m² | R550 – R800 |
| Polycarbonate sheets, per m² | R500 – R900 |
| Single carport (3 × 6 m), standard sheets | R5 000 – R10 000 |
| Single carport (3 × 6 m), premium sheets | R8 000 – R15 000 |
| Double carport, full re-roof | R10 000 – R20 000 |
| Aluminium roofing, full single carport | R10 000 – R20 000 |
Get an accurate quote. Frame repairs, gutters, flashing, old-sheet removal and travel can cost extra. Ask whether VAT is in the price.
What pushes the price of carport roof replacement up
- Chromadek, aluminium or polycarbonate instead of plain galvanised sheets
- Thicker sheets of 0.5 mm or more, plus insulation
- Rusted purlins, new gutters, flashing and removal of old sheets
Types of carport roof replacement
| Type | Best for | Keep in mind |
|---|---|---|
| Galvanised IBR | Lowest-cost solid cover over a sound frame | Plain zinc finish, about 15 – 25 years |
| Chromadek IBR | Colour choice and longer life | Dearer than plain galvanised sheets |
| Corrugated steel | Matching an older corrugated profile | Moderate upkeep, about 15 – 20 years |
| Polycarbonate | Letting daylight into a dark driveway | Pick UV-protected, hail-resistant sheets |
| Aluminium panels | Humid areas where steel rusts | Dearer, roughly R10 000 – R20 000 installed |
| Insulated Chromadek | Better heat control under a solid roof | Installed rates run R550 – R800 per m² |
Carport roof replacement materials and specs compared
| Material | Strengths | Watch out for |
|---|---|---|
| IBR 0.4 mm galvanised | Standard domestic gauge, lowest price | Purlins about 1.25 m apart at most |
| IBR 0.5 mm, Z275 coating | Heavier duty, spans about 1.65 m | Costs more per m² than 0.4 mm |
| Chromadek on galvanised base | Colour, UV resistance, 25 – 35 years | Higher price than plain galvanised |
| Polycarbonate sheet | Up to 90% light, blocks 99.9% UV | Price varies by brand, length and thickness |
| Aluminium sheeting | Does not rust, 25+ years | Higher cost, about R400 – R700 per m² |
| Fasteners and washers | Good ones extend the whole roof's life | Worn ones cause most metal roof leaks |
Check the frame first
- Inspect posts, welds and purlins for rust before ordering any sheets.
- A weak frame turns a new roof into a short-term fix.
- Leaning posts, cracked welds or a sagging roofline point to deeper problems.
- Ask the installer to report on the frame in writing.
Sheet thickness and purlin spacing
- IBR roof sheets come in 0.4 to 0.8 mm, and thicker spans wider gaps.
- A 0.4 mm sheet suits purlins roughly 1.25 m apart.
- A 0.5 mm sheet copes with roughly 1.65 m between purlins.
- Get the thickness and coating class written on your quote.
Fasteners and drainage
- Worn fasteners are the most common cause of metal roof leaks.
- Renewing fasteners and washers alone can cost R60 – R120 per m².
- Ask whether flashing and gutters are replaced or reused.
- Blocked gutters let water build up, so test drainage after the job.
Approval for carport roof replacement
- Countrywide, a carport left open on its sides and within 40 m² is minor building work.
- Minor work needs no plans, but your local authority must authorise it first.
- Ask your municipality whether a roof swap needs notice. Larger structures need full plans.
Carport roof replacement services
| Service | What to ask for |
|---|---|
| Full sheet replacement | Old sheets stripped and removed, new ones fixed |
| Chromadek re-roof | Colour, coating and thickness stated on the quote |
| Polycarbonate roof swap | UV-protected, hail-rated sheets with sealed joints |
| Fastener and flashing renewal | New screws, washers and flashing priced in |
| Gutter and downpipe fitting | Drainage added or renewed with the new roof |
| Frame rust treatment | Rust removed and repainted before roofing |
Practical carport roof replacement tips
- A full steel re-roof typically takes 2 – 4 days on site.
- Polycarbonate roofs are often finished within one to two days.
- Low per m² prices often cover sheets only, not stripping or flashing.
- Inspect the roof at least once a year and after severe weather.
- Workmanship warranties range from 12 months to 5 years, so get yours in writing.
- Allow about 10% extra sheeting for offcuts and overlaps.
What to send with your request
- Photos from outside
- Photo of the underside
- Roof length and width
- Current roof material
- Leaks or storm damage
Installers on leaderr are independent businesses, so you choose who gets the job. Our matching is free.
Frequently asked questions
How much does a carport roof replacement cost?
A single 3 × 6 m carport roof runs about R5 000 – R15 000. A double runs about R10 000 – R20 000.
Should I repair my carport roof or replace it?
A simple leak patch costs about R500 – R1 500. Replace when sheets are rusted through, sagging or failing repeatedly.
How long does a new carport roof last?
Galvanised sheets last about 15 – 25 years. Chromadek lasts about 25 – 35 years with upkeep.
Do I need approval to replace my carport roof?
Open-sided carports up to 40 m² are minor building work. Ask your municipality whether a roof swap needs notice.
Is polycarbonate better than IBR for a carport roof?
IBR is cheaper but blocks light, runs hot and is noisy in rain. Polycarbonate lets daylight through.
Carport Roof Replacement near you
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