SA Roofing November 2018 // Issue 106 | Page 12

ADVERTORIAL: COVER STORY The ultra-steel solution Determined on using highly engineered roofing systems, MiTek and Rooftek joined forces to elevate steel roof design at Mediclinic Stellenbosch. By MiTek | Photos by MiTek Ultra-Span light gauge steel was used for the project. P rovider of software solutions and suppliers of roof truss products, MiTek Industries South Africa and top truss manufacturer Rooftek innovatively collaborated on a major steel roofing project for Mediclinic Stellenbosch, situated on the banks of the Eerste River in the scenic town of Stellenbosch in the Western Cape. For the roof design, the team made use of an Ultra-Span light gauge steel structure. Backed by a professional engineering and estimating department, Ultra-Span is a pre-fabricated light gauge steel roof truss system that is both lightweight and compact for economical transportation costs. Spanning a total area of 4 500m², the Ultra-Span light gauge steel roof consists of a hipped structure with Dutch gable ends. 10 NOVEMBER 2018 CLADDING // CONCRETE // INSULATION // STEEL // THATCH // TIMBER // TRANSLUCENT // WATERPROOFING // COMPONENTS With truss spans ranging between 14m and 20m, the inverted shape of the Ultra- Span roof trusses opened a new door for design requirements of light steel frame roof structures. Drawing the attention of architects and engineers, the special shaped inverted Ultra-Span roof trusses provided a structurally sound roof structure that was designed to accommodate services like HVAC units and ducting as well as solar PV panels to the one elevation of the roof structure. This has opened up an opportunity for Ultra-Span in the Western Cape, especially in the field where non- combustible material must be used. The roof structure was detailed to be supported in-between the concrete ring beams on brackets. This created design, cost and erecting challenges, given the timeframe to erect the required roof structure. Engineering excellence Engineered designs are calculated using MiTek’s state-of-the-art, in-house developed 20/20 software and provides economical roofing solutions. The low mass per square metre of this roofing system ensures both savings on the supporting structure as well as on transportation and erection costs whilst also being vermin proof and non-combustible. MiTek Engineering Cape Town designer Jaco van Wyk came up with the required framing solution for the project which is more cost effective in a variety of fields throughout the project. “The erecting of the www.saroofing.co.za