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Delta Motors supports Light Steel Frame Building

Delta Motors supports Light Steel Frame Building

Delta Motors has added its name to the growing list of companies which support the light steel frame building (LSFB) method. A General Motors dealership in Cradock, C.A.T. Motors, has built a state-of-the-art 1 800 m2 facility in less than six months – about three months faster than conventional building methods – a saving on construction time by more than 30%. The project began in January and was completed on June 30.

The Silverline Group, well-known for its high-profile LSFB projects, including the recent McDonald’s restaurant in Goodwood, Cape Town, was contracted to do the construction, including all the civil work, boundary walls, driveways, paving and all finishes. John Barnard, director of the Southern African Light Steel Frame Association (SASFA) explains that the building is in essence a light steel frame structure cladded with fibre cement boards with external walls filled with a polystyrene concrete mix. The internal walls are cavity walls with ISOVER insulation. The building also had a requirement for a walk-in document safe which was onstructed using the solid wall concept for the walls and roof giving it a fire rating of no less than two hours.

The roof, also built with light steel frame trusses, has a free span of 24.5 m, which is a significant scan, even for heavy structural steel work. The light frame steel was delivered ‘flat-packed’ and after assembly was erected within seven days. “With strong winds – often 65 km / hour in the Eastern Cape – the structure was designed with additional bracing, which was well worth it,” says Charl van Zyl, MD of the Silverline Group.

He adds that with Cradock having extreme temperatures in both summer and winter it was imperative to give the client an energy-efficient building with limited need for air conditioning or heat pumps. “Constructing an energy-efficient building saves the client the initial capital cost of purchasing air conditioners, and in the long term, a saving of about 10% on the running costs and maintenance of these items.”

The owner of C.A.T. Motors, Jacques Jordaan, says that he is satisfied that the new building has achieved at least a 10 degrees difference in comfort between the outside temperature and inside, without the use of air conditioners. “A recent research project carried out by the CSIR indicated that an LSF building will require less than half of the energy needed to heat and cool a masonry residential building to comfortable internal temperatures,” Barnard says.

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