HH Robertson, established in 1958, was the first company to introduce steel roof sheeting in South Africa, and proceeded to be the first manufacturer and a pierced fix roofing specialist. Through the years the operation maintained its leading position as supplier of traditional roofsheeting to the Southern African construction industry.

The operation survived many ownership changes and after being part of Grinaker Lta, Dekex etc, came into the Dorbyl Ltd fold as a part of the Global Roofing Solutions division in the late 1990`s. HH Robertson, together with Brownbuilt now forms the two operational divisions of Global Roofing Solutions (Pty) Ltd.

They also patented the now generically known "Inverted Box Rib"-Profile, IBR and were the first to offer the unique embossing feature on their sheeting.

The first coil-to-coil paint line in Africa was established by HH Robertson, at the time, providing GRS the capability to supply their own proprietary Colomet painted sheets. The system was improved and now Globalcoat™ coils & sheeting is produced and marketed by both GRS operations.