Construction World Septemer 2017

WOOD CONSTRUCTION

It has come to the attention of the ITC-SA that with regards to the implementation of the National Building Regulations SANS 10400 Part L: Roofs, which covers SANS 10243 (Manufacture and Erection of Timber Trusses), SANS 10163 (Structural use of Timber), SANS 1783 sections 1 and 2 (Sawn Softwood Timber) and SANS 10005 (The Preservative Treatment of Timber), a large percentage of buildings do not comply with the law. A factor contributing to this phenomenon is a measure of ignorance in the sector around the responsibilities associated with each function in the building process. There are many misconceptions held among some professional practitioners and contractors in the built environment about the scope of their involvement up to project completion in ensuring the conditions of the relevant regulations are met. The municipal building control office relies on the knowledge and integrity of the professional team responsible for designing, overseeing and final inspection of the roof structures to ensure conformance to the regulations by issuing a certificate of compliance. Why, then, are so many buildings not conforming to the code? National Building Regulations’ workshop on roofing The Institute for Timber Construction South Africa (ITC-SA), SAQA-registered Professional Body for the engineered timber construction industry, hosted a free CPD-accredited workshop in Pietermaritzburg on 31 August with the assistance of the South African Local Government Association (SALGA) on the practical and legal aspects of the National Building Regulations with specific reference to SANS 10400 Part L: Roofs.

About the Institute for Timber Construction The ITC-SA was established more than 40 years ago to regulate the engineered timber roof structure industry and to provide design, manufacturing, erection, inspection and certification for compliance with inter alia SANS 10400 and SANS 10082, where engineering rational designs are applicable. The ITC-SA is a South African Qualifications Authority (SAQA) accredited professional body with a professional membership and therefore has to comply with the requirements as set out in the National Qualifications Framework Act (NQF Act 67 of 2008 – as amended). The ITC-SA is also a Recognised Voluntary Association in terms of the Engineering Profession Act, 2000 (Act 46 of 2000). In 2014, the Institute

To address this controversial issue, the ITC-SA, with the assistance of the SALGA, explained the roles and responsibilities of the professional practitioners in the built environment with respect to implementing SANS 10400 Part L: Roofs. The purpose of the workshop was to sensitise all the role players in the built environment who are tasked with submitting building applications to the local authorities about their legal responsibilities and to clarify any misconceptions about their accountability and responsibility in the process.  The Quik Drive ® fastening system provides consistent performance, no wastage as every screw on the collated strip can be driven and all whilst providing labour saving speed of install. Perhaps best of all, the system allows fastening from a standing position for decking and other timber and flooring applications. The range includes fasteners for decking in galvanised steel and stainless steel as well as specific fasteners for timber to steel applications. All of its fasteners are designed and manufactured to a high standard to ensure that their performance is to the high standard that is expected from all Simpson products. Simpson Strong-Tie has also released a range of structural wood screws that are able to replace bolts for some timber to timber applications. The SDWS screw is suitable for the connection of multi ply trusses as well as purlin to truss connections and truss to top plate connections. With engineered design values for all sizes, they can also be used for fastening glulam and solid timber members in shed and stable construction where performance is important. Imagine the speed of using a screw without pre-drilling as opposed to a bolt? Knowing that the screw has loads that allows it to replace bolts is a great benefit when fastener structural timber members of all type and sizes. The SDWS screw is a great alternative for timber fence pole connections and the connection of timber frame panels with a double barrier coating to ensure that it has better corrosion properties than some galvanised fasteners. The features on the screw allow for quick installation, saving time and money while achieving high clamping force with tested engineering loads so they can be used with confidence. Simpson Strong-Tie also includes clear head markings so that the screws are identifiable after installation.

for Timber Frame Builders (ITFB) was incorporated into the ITC-SA to ensure a better and more uniform representation of the timber engineered practitioners in the built environment.

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Improve the quality and durability of your work while reducing time and money spent on the job with the Simpson Strong-Tie ® Quik Drive ® and Structural Screw fastening solutions. 

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CONSTRUCTION WORLD SEPTEMBER 2017