Browse Forums General Discussion 1 Sep 28, 2022 7:26 pm We've very recently noted mould growing on the ceiling of front balcony. We are living in a new house built recently by a local building company. We thought it was possibly due to waterproofing issues with the balcony above but when we contacted the builder we were a little surprised to be informed that it probably due to the fact that they accidentally used standard joint compound on the ceiling sheets and not wet area joint compound. The fix they proposed was to clean the mould off and paint over the joint with mould resistant paint. We are far from experts on joint compounds and exterior ceiling sheeting but this feel like the preverbal Band-Aid fix. If the std joint compound is retaining moisture and causing the mould then surely we need to remove it from the equation. Equally of concern is that the mould will not just be on the exterior surface of the sheeting. Does anyone has any advice in this area or any recommendations on who we should contact to get a professional response to the builder and ensure they fix the mistake they made in not using the correct joint compound? Any thoughts would be welcomed. Here is the builder initial response to the issue: "The wet area compound is a base coast that has a strong moisture resistance and so is always used in wet areas such as the alfresco as it helps to prevent mould from occurring. However, what we have come to realise after the long wet period is that our gyprock supplier failed to use the wet area compound on a few jobs during the time of your build resulting in us starting to see mould in these areas. The underlying issue here is the coat on the gyprock so our understanding, following extensive chats with our team and suppliers, is that the correct solution to solve the issue and prevent any future problems is to strip back the mould and repaint with a suitable mould resistant paint providing the correct level of protection." Picture of the mould: Ceiling MouldLike ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ there is only 20% difference in concrete strength between 20 mpa and 25 mpa, so check with your engineer first if it fits his calculation tolerances. There are ways to… 6 18467 Hi, I am planning to select San Selmo reclaimed original for the fascade of my build. I have seen many photos on line of the brick varying from a rustic to a neat finish.… 0 4687 Hi guys, I want to butt a concrete vegetable garden bed against a concrete build up of a carport. It will be a 700mm high wall about 120mm thick and I will run a 12mm rio… 0 2785 |