I’ve had a look at the legals and must say that your Chair has a point. The NSW government is going to all this trouble because serious problems have surfaced in so many home unit buildings. It’s conceivable that the type of window proposed for your building is unsuitable or comes from a factory with a bad reputation. It’s also conceivable that you contract with a builder who takes short cuts. So the law intervenes to reduce the risk of anything going wrong.
However, our builder tells me that we’re replacing like with like and we don’t need the checks that your Chair suggests.
I’m still asking around, so watch this space. And keep prodding your strata committee for some action.