SA Roofing September 2018 // Issue 104 | Page 20

PROJECTS Warehouse of durable steel Making a strong appearance in the industrial sector, the Pepkor Warehouse is a sterling steel example. By Candace Sofianos King The mixed-use 82 000m² Pepkor Warehouse makes use of steel in an innovative way. T he recently completed Pepkor Warehouse in Hammarsdale, KwaZulu-Natal presents a solid case for steel. Featuring the innovative usage of steel on many levels, the warehouse is roofed and clad with a high tech, premium grade of coated steel that provides not only long life in service but also an attractive and energy efficient finish. Serving as a distribution centre for the Pepkor Group, the warehouse offers an 82 000m² mixed-use area consisting of covered warehouse space; office space of 3 000m² and 1 800m² respectively for companies Ackermans and Speciality SA; and an additional four 500m² office nodes. 18 SEPTEMBER 2018 CLADDING // CONCRETE // INSULATION // STEEL // THATCH // TIMBER // TRANSLUCENT // WATERPROOFING // COMPONENTS A closer look “The brief called for about 17.35m clear height to the underside of the eaves. The materials of construction used consist of reinforced concrete and structural steel – to the structural engineer’s design with appropriate corrosion protection where necessary,” explains GD Joubert, senior associate at EDS Engineering Services. Joubert continues, “It was envisaged from the outset that the warehouse would be constructed largely of structural steel. The main support columns of the warehouse are concrete reaching up to 12.6m and 17m from FFL. The remainder of the structure was constructed from structural steel which was strengthened locally to allow for the installation of solar panels to a roof area of about 15 000m². “The structural system used for the building was based on a girder truss system carrying lateral trusses that makes up the main elements of the roof. Various steel profiles were used for the building, including the structural, roofing and cladding elements.” According to Arno Hanekom, regional manager of BlueScope Southern Africa, a critical element of the roof design is the selection of steels. “The metallic coating used on our ZINCALUME steel in coating mass AZ150 comprises 55% aluminium,