In other words, the AS4284 paperwork is not proof of compliance. For a building’s facade to be compliant, it is critical to review the respective test reports and - in the case of weatherproofing - make sure the detailing and pressures are relevant to each specific project. The mandated AS4284 waterproofing test report will not address the issue. Since insurance is perhaps the most significant factor affecting facade compliance, it is imperative that all in the facade approval chain fully understand the code and requirements. Here in Australia, failed waterproofing is the most common defect nationally and while the total cost of building defects nationwide is expected to top $6.2 billion in the last decade, weather and water damage issues account for $1.4 billion of that total – paid for, mostly by homeowners and insurance companies. Up to 30% of high rise housing stock can be affected by waterproofing issues, according to various independent and government studies from around the world including Canada and New Zealand. Ignored for a long time, building waterproofing presents an even greater issue than ‘at risk’ or non-compliant cladding.
However, one of the most serious problems impacting high-rise domestic dwellings pre-dates the Coronavirus pandemic by several years. The residential construction market has been going through tough times with the current COVID-19 pandemic presenting fresh challenges for the entire property industry.
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