SA Roofing Jan-Feb 2019 // Issue 107 | Page 25

FEATURES Timber as a roofing building material is increasingly on the rise in South Africa. and roofing technologies have been adopted in the market compared to 10 years ago – a positive reality that will help to reshape the roofing sector. “The South African construction industry is still set on its old brick and mortar ways, but more timber frame housing is being built thanks to better workmanship, costs, timber preservatives and design technologies. – So yes, timber is revolutionising the roofing and construction sector as a whole,” says Botha. He notes that the timber roofing industry is quite competitive which lends itself to being sufficient where one can expect very competitive prices. “Roof truss designers must think out of the box when designing roofs to ensure their roofing quotes are more competitive. They should also make use of alternative technologies for this reason,” believes Botha. Botha notes that while hurdles remain, the timber roof industry is seeing several enlightening trends take shape. He notes that larger 900mm c/c truss spacings on concrete tile roofs is a major trend in certain locations in the country by www.saroofing.co.za making use of 38 x 38 battens. This is a huge cost saver on any roof, which is increasingly being used on low- and medium-cost housing projects, he highlights. “With the first Cross Laminated Timber (CLT) structures already built in the Western Cape, we foresee that CLT projects will be a standardised trend in architectural designs for large building projects in the future as it has already proved itself as a steel and concrete replacement in high-rise buildings in the EU, US and Canada. Testing of a stronger Biligom CLT is in the process,” notes Botha. Botha believes that due to South Africa’s crumbling economy, we will start to see smarter, greener and more cost- effective roof designs. “More eco-friendly projects – both private and governmental – are planned for the future, therefore sustainable roofing products will need to be used as architects receive green credits if specified. It’s tough out there for truss plants if buildings are not being constructed and therefore the smarter, educated and open-minded truss plant owners will reap the rewards.” The South African “ construction industry is still set on its old brick and mortar ways, but more timber frame housing is being built thanks to better workmanship, costs, timber preservatives and design technologies. ” – JD Botha of Biligom International. TOP TRENDS TO LOOK OUT FOR • Self-healing concrete • Air-cleaning materials • Transparent wood • Graphene • Additive manufacturing • 3D printing • Building Information Modelling (BIM) • Cross Laminated Timber (CLT) CLADDING // CONCRETE // INSULATION // STEEL // THATCH // TIMBER // TRANSLUCENT // WATERPROOFING // COMPONENTS JAN - FEB 2019 23