SA Roofing February 2018 // Issue 97 - Page 30

FEATURES Truss plants form part of the roof inspection process. are in ensuring industry standards are upheld. A balanced practical aspect is offered, as students visit two different construction sites – one with a timber roof built to standard and another with a timber roof in distress due to ineffective bracing. The site visits make for lively discussions around site observations, ethics in the line of roof inspections and the potential entrepreneurial opportunities available to roof inspectors. The Roof Inspector Training courses conclude with a slide show and discussion of non-compliant roofs and their consequences as well as a non-compulsory written evaluation. Although each course runs over three days, Bailey stresses that it takes longer to become a qualified inspector. “The world of timber trusses is so specialised, it takes a number of years to really get into it. Don’t look at three-day course and think you can go from zero to qualified. There’s a lot of background and learning required,” he says. Additionally, being a designer doesn’t mean that you can inspect or erect a roof. “Each field is specialised,” says Obbes. Getting certified Certifying a roof is a lengthy process; from the building design being approved, trusses 28 FEBRUARY 2018 RESIDENTIAL // COMMERCIAL // INDUSTRIAL “ There is a checklist that inspectors go through.” are manufactured and delivered to site and erected, municipality checks, inspectorate checks and so on. “The municipality gets involved in new projects as various certificates are required prior to occupation such as glazing, plumbing, electrical and roofing,” Bailey says. However, if the structure is fully designed and correctly finished, certification can be received within a matter of days. “The certificate is called a loading certificate, which includes ceilings and tiles. Once this is handed over to builder, he is permitted to install the ceiling and lay the roof tiles,” he says. The certification only applies from the wall plate upwards. If it happens that there is a fault in the structure, whoever is responsible is liable to fix it. However, if the roof was never signed off and occupation was granted without this, responsibility of failure falls on the owner,” says Stian de Jager. A unique situation with any commercial, retail or public building roofs is where you have a separate act covering it such as the Occupational Health and Safety (OSH) Act. “Under this act there are construction regulations that state that the owner is liable. The owner then needs to seek recourse from the respective parties at fault, if it can be traced,” he says. There is a checklist that inspectors work through, but inspection really starts at the manufacturing plant. “We start by going to the roof manufacturer and sourcing official drawings. These include layout and details of trusses as well as the bracing. The paperwork is then taken on site to check that what is on paper matches what is on site,” says Bailey. Should he see errors between the design and structure, he will compile a list of items to fix which is given to the owner, who will pass it on to the