Architect and Builder July/August 2015 | Page 8

NEWSWATCH THE LATEST NEWS AND PRODUCTS FROM THE BUILDING INDUSTRY NEWSWORTHY CMA ANNOUNCES AWARDS FOR EXCELLENCE 2016 The Concrete Manufacturers Association (CMA) NPC has announced that its Awards for Excellence competition will be run during 2015/16. PPC, the leading supplier of cement in Southern Africa, is the anchor sponsor of the competition. According to Echo Group managing director, Monique Eggebeen, who chairs the CMA’s Awards committee, the essential purpose of the awards is to recognise excellence in the use of precast concrete and to honour those professionally associated with its diverse applications. “This is the pinnacle event in the precast concrete construction calendar and it presents an outstanding opportunity for CMA members, both large and small, to showcase their products and to establish themselves as trendsetters in the use of precast concrete,” says Eggebeen. The competition is open to all providing the precast products entered for the competition were made by a CMA member. Entries must be submitted by no later than October 16, 2015. There are six award categories in this year’s competition: • Aesthetics Commercial • Aesthetics Residential (Private Single Dwellings) • Community Upliftment • Technical Excellence • Innovation • Precast for Life Entry leaflets can be downloaded from www.cma.org.za. THE TECH BUTLER SEES HUGE POTENTIAL FOR INNOVATIVE RADIANT HEATING AND COOLING CEILINGS Although not a new product in the international built environment, radiant ceilings have only recently begun to be embraced by South African architects, engineers and sustainability consultants. Radiant Ceilings Radiant ceilings provide targeted, fast cooling that requires a minimum input of resources that can be regulated individually. These systems use radiant heating and cooling as opposed to traditional air conditioning which uses air to transport the heat. One of the best materials to use in radiant ceilings is graphite, which is a very good conductor. The extraordinary thermal conductivity of the material enables a very fast and uniform heat and cold distribution on the panel´s surface and thereby to the room. This precondition allows a much more consistent distribution of heat or cold, as well as a higher (during heating) or lower (during cooling) average surface temperature, compared to conventional systems. The heated and cooled cassettes have a copper or aluminium meander installed in the cassette through which the hot and cold water is passed, heating or cooling the room. The system runs on a heat/chiller pump, which does not require as low a water temperature as traditional chilled water systems. Major Energy Savings Radiant ceilings can heat up and cool down in less than 2 minutes, which saves energy. Radiant ceilings still require an air turn in offices but can save up to 30% of the energy used compared to air conditioning as well as the overall comfort factor which is up to 40% better than having air warm and cool the area. There are no draughts or cold and hot spots. Another major advantage of the radiant ceiling is that if the building is modelled correctly and the heat load of each of the areas is known, the correct number of active panels can be used, thereby ensuring maximum efficiency. Radiant ceilings come in four types, namely Cassette, Baffle, Continuous and Canopy. The ceilings can be customised to any shape, colour or surface finish and can be designed to fit almost any architectural or engineering specification. Contact Michael Carter at The Tech Butler: 082 562 5063 www.thetechbutler.co.za Any queries regarding the competition should be referred to the competition organiser, John Cairns: Tel: 011 431 0727 or 079 884 7986 [email protected] 6 News Watch