A Mandurah building company and supervisor have been fined $10,000 for not properly securing the roof of a Halls Head home.
The two-storey home was built by Mandurah Homes between 2015 and 2016 and supervised by Todd Andrew Green.
On a windy night in July 2017, a section of the home’s tin skillion roof lifted off and landed at a nearby property, damaging the roof of that house.
The Building Services Board found that Mandurah Homes’ work on the skillion roof did not comply with applicable building standards and approved plans and specifications.
Areas of non-compliance included:
• The roof’s front section failed below the site’s wind classification rating of up to 180km per hour, as winds on the night in question were recorded at 81km per hour.
• Some tie-down straps were not installed, while others were spaced incorrectly.
• Tie-down rods were not installed to the full height of the wall.
• Tie-down straps, rods and dowels were made of galvanised steel, rather than stainless steel as required by the design certificate.
The Board also determined that Mr Green, as Mandurah Homes’ nominated supervisor, was responsible for properly managing and supervising the company’s building services and ensuring compliance with applicable building codes and standards.
The Board acknowledged Mandurah Homes’ cooperation, acceptance of liability, prompt remediation work and implementation of more robust procedures.
However, it noted that the company’s failure in this case was “significant” and that its conduct “resulted in a risk of injury to public health and a threat to public safety as flying roof debris had the potential to cause harm”.
“Fortunately no one was injured in this case, which serves as a timely reminder that builders need to properly manage and supervise their projects, and comply with the relevant codes and standards," Building Commissioner Ken Bowron said.
“Building service providers who fail to take these responsibilities seriously may face fines from the Building Services Board or the State Administrative Tribunal.
“We will continue to hold to account and name those who put the public interest and integrity of the building industry at risk.”
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