SA Affordable Housing January - February 2019 // Issue: 74 - Page 26

PROJECT as good as they could be,” explains Van der Westhuizen. He adds that, as a result, the various building components were chosen primarily for their price, with the aesthetic aspect also being extremely important. “This is why we chose to work with standard stock and face clay bricks, with in-situ concrete for the structure and flat roofs,” says Van der Westhuizen. “One of the main challenges during construction was to make sure that we were ready for occupation in February 2018 so the first batch of students could move in phase 1 when the university opened for the year. To achieve this early date for phase 1, we had to engineer faster construction methods. AAC Block building material was the answer as it is a suitable replacement for conventional brickwork. It is much bigger, lighter, faster and easier to install than brickwork,” explains Jaco Pienaar, CEO of Caliber Properties Aluminium and timber doors and aluminium windows were chosen both for cost and their contribution to the sustainability of the building. International studies have shown that aluminium windows and doors can easily achieve improvements in heat gain and heat loss through windows by 60% rivalling more expensive timber and uPVC equivalents. Over the life of the building, energy savings with aluminium doors and windows have also been shown to outweigh the initial energy input by well over 100 times. For homes with electrical heating, or cooling for homes in hot climates such as South Africa, these savings can run into multiples of close to 300 times. It is for a similar reason that sheet metal roofs were chosen for the mono pitch roofs. Properly installed, a metal roof should last as long as the building, is effective at sealing out water and surviving high winds. Metal is also resistant to fire, mildew, insects, and rot meaning that in the long-term maintenance costs of the building are kept down. Sheet metal roofing also provides a number of other benefits particularly related to the affordability of the project. Because of the material’s light weight, savings were made on engineering and building the supporting structure while labour costs were saved on installation. Metal roofing also reflects radiant heat from the sun, minimising midday heat gain and ensuring energy savings on air conditioning during the day. The inside of the building comprises plastered and painted wall finishes in rooms and halls and plastered and tiled wall finishes in the bathrooms. Ceramic floor tiles are used throughout in combination with smoothed concrete floors. “All of the materials are used and combined in such a way to ensure a modern and aesthetically pleasing look and feel to the building. It’s a student space that we wanted to feel fits with all the most recent design aesthetics,” explains Van der Westhuizen. According to Albert Swanepoel, CFO of Caliber Properties, an intensive cost analysis and experience in the affordable housing market means that the Apartments on William are not only pleasing on the eye, but also delivered within budget. “The tendering procedure and supplier approvals were extremely competitive keeping in mind the current economic environment we are challenged with,” says Swanepoel. 24 JANUARY - FEBRUARY 2019 The dining area. One of the kitchens. The roof deck. The outside facade. The overall result left all partners extremely pleased. “With the appointment of the right contractor, namely Tri- Star Construction, a clear scope of works and high standard quality control measures, we achieved the desired quality on the project,” says Marlise Taljaard, development manager at Caliber Properties. www.saaffordablehousing.co.za