Why steel and IBR own the Johannesburg market
IBR is the deep-ribbed steel roof sheet you see on Highveld roofs, and on a carport it does the job shade net and polycarbonate cannot: it stops hail. Paired with a hot-dip galvanised frame, a steel-and-IBR carport shrugs off Joburg's October-to-March storms, does not fade or go brittle under the high-altitude UV, and carries a 6m double span without sagging. That combination is why steel is fitted on the large majority of Johannesburg carports.
IBR, Q-deck or corrugated — the sheeting choice
| Sheeting | Profile | Best for |
|---|---|---|
| IBR | Wide box rib | The default — strong, flat lines, hail-rated |
| Q-deck / concealed-fix | Curved rib | Low-pitch and near-flat roofs on complexes |
| Corrugated | Rounded wave | Face-brick and heritage stands wanting the classic look |
All three are steel and all three stop hail; the choice is roof pitch and looks. Colour-matched Chromadek in charcoal, dark dune or your estate's spec finishes it.
Galvanised versus painted frames
The frame is where corners get cut on cheap quotes. A hot-dip galvanised or properly primed-and-powder-coated steel frame lasts decades on the Highveld; a bare painted frame streaks rust at the welds within a few seasons. KB Carports galvanises or powder-coats every steel frame. For a rust-proof frame with less weight, compare an aluminium carport; for the budget end, a shade net carport trades hail protection for price. Full figures are on the carport prices page, and the hail case is in carports and Highveld hail.
Common questions
Are steel carports good for Johannesburg hail?
Yes. A steel carport with IBR or Q-deck sheeting is the best cover for Highveld hail — the deep-ribbed steel roof takes the impact that cracks windscreens and dents bonnets, which shade net and polycarbonate cannot.
What is IBR roofing on a carport?
IBR is a deep box-rib steel roof sheet, the Highveld standard. On a carport it gives a strong, flat roofline that sheds storm water fast and stops hail, and it colour-matches to Chromadek charcoal or dune.
Do steel carport frames rust in Johannesburg?
A hot-dip galvanised or powder-coated steel frame does not rust for decades on the Highveld. Bare painted frames streak rust at the welds within a few seasons — KB Carports galvanises or powder-coats every steel frame.