Fixing stage is reached when the doors and timber trims (architraves and skirting boards) are fitted and when joinery such as kitchen ,vanity and internal stairs have been fitted. For smaller buildings, fixing stage is when you will pay the last building progress payment before completion, and when you will normally have paid up to 85% of the contract sum.
Waterproofing is the process of making the balconies, bathrooms, and shower areas resistant to water ingress. This is critically important because it will protect the sub-structure from leaks and rot. Waterproofing may be completed using a paint-on type membrane, which forms a water-resistant layer. The National Construction Code requires that all wet areas be waterproofed in accordance with the relevant Australian Standards, (For single residential this is AS 3740 – Waterproofing of Domestic Wet Areas or for balconies, in accordance with AS 4654 – Waterproofing Membranes For External Above-Ground Use).