Timber iQ April - May 2019 // Issue: 43 | Page 16

EVENTS are on a different level through exiting design and architecture concepts. Her presentation illustrated how log homes are also considered durable as Finland has the oldest log homes in the world – some as old as 600 years. One of the advantages of log homes that Weckström mentioned, is that they are recyclable as with modern technology, and can be disassembled and rebuilt at different sites. Italian engineer from Rothoblaas, Michele Dal Ri gave an insightful presentation about modular timber solutions. He discussed how new solutions for modular timber construction, which provide efficiency on site as well as treatments, airtightness and waterproofing for the cross laminated timer (CLT) building system. Improved air quality and low waste are among the many benefits of modular timber constructions. Lukas Krbec, a structural engineer from the Czech Republic looked at solutions for architectural vision and structural elements of design, as well as stress points on load-bearing structures by analysis through software as well as manufacturing capabilities. Dr Nick De Koker concluded presentations in the second session and presented testing and results of the effect fire on timber in construction. Depending on the function and load needs the effect of structural integrity can be estimated. Wood begins to char at 300°C, which is some cases can protect structural strength of a beam, for example. Knowledge of the fire rating of all timber products is important from design phase. REFABRICATED TIMBER, WOOD VALUE CHAIN AND ARK ANGELS SUCCESS After enjoying a delicious lunch, delegates returned to the hall to listen to speakers in the third and final session of the day. Ulrich Grimminger and Thomas Just, presented together on the advantages of prefabricated timber houses for developers. After a steady decline in timber construction since the 1800s and with the introduction of concrete and steel, there has been an increase in demand since around 2000. In Germany timber construction is expected to hold 30% of market share. Prefabrication is primarily very efficient on site but also greatly reduces waste as the production process is very precise. Next up was Rosie Goldrick, an engineering director from MASS Design, who talked about the importance of strengthening the wood value chain in east Africa to improve ecological, industrial and community life. She also gave an overview of the work MASS and associates has done in Rwanda as well as the challenges of sourcing local materials in terms of quality. Rwanda is among one of the most densely populated countries in Africa. “With this density comes deforestation and food insecurity,” Goldrick explained. Although Rwanda is high in natural resources such as timber, the management of the plantations and forests has been neglected and therefore affects the timber quality. In addition, a lack of training, machinery and correct treatment are also substantial challenges. Timber in Rwanda and other African countries is primarily used in making charcoal. 14 APRIL / MAY 2019 // Consul general of Switzerland in Cape Town, Andreas Markus Maager, welcomes delegates. Stefan Thomas Rubner from Austria, the penultimate speaker for the day, showcased a new temporary living space introduced as ‘Wood-Space’ – a container-like system that can be adjoined or stacked to two levels. Wood-Space combines traditional timber construction with modern and sustainable production techniques and so block construction is reinterpreted. Rubner explained that the system can be configured into a variety of solutions for housing, site offices, lounges or waiting areas. The last speaker, Warren Papier an architect from Blueprint Architects, gave feedback on the Ark Angels Educare Project in the Overcome Heights community located in Cape Town. He said that Ark Angels integrated a safe teaching environment for the community. The project was completed towards the end of 2018 and was handed over in January 2019. Papier explained how only 20% of the resources used in this project were sourced from Europe and the remaining 80% were skills, labour and material from South Africa. Although there were challenges during the project, collaboration by private and corporate sponsors which donated funds, materials and in some instances their services, made the project a success. Papier expressed gratitude and appreciation to all that were involved in the project. “On 14 January 2019, after a three-year process, the new facility was officially opened by the mayor of Cape Town, the consul general of Switzerland and a very happy community, along with Ark Angels Educare,” he added. A WORD FROM DELEGATES As the conference came to an end, delegates had an opportunity to participate in an online survey, where results indicated that modular timber construction had a moderate to high probability of implementation in South Africa. www.timberiq.co.za