IBR is short for Inverted Box Rib, a classic trapezoidal metal roof profile originating from South Africa. For decades, it has become the standard roofing material widely used in South Africa, Zimbabwe, Botswana, Namibia and other Southern African countries.
Core Advantages of IBR Sheets
- Excellent structural strengthThe box-type rib design greatly improves rigidity. It supports wider purlin spacing and can bear heavier loads compared with ordinary corrugated sheets, ideal for large warehouses and factories.
- Efficient rainwater drainageDeep and wide flutes enable fast water flow, effectively avoiding roof leakage during heavy summer rains in South Africa. It performs well both on low-slope and conventional roofs.
- Strong climate adaptabilityIBR sheets can be produced with galvanized steel, PPGI and Chromadek materials. With proper coating, they resist UV radiation, rust and salt erosion, suitable for inland dry areas and humid coastal cities such as Durban and Cape Town.
Main Popular Specifications
- 686mm IBR: Effective covering width 686 mm, the most mainstream model for residential buildings, workshops and small commercial projects.
