Metal Roofing

Roofs are not waterproof – they are designed to simply collect water on the building and remove it to another location in a controlled manner to prevent water entry to the building and the associated water damage. The design of a roof, following t...

1. Preplanning 1.1 Roofing requires substantial preplanning early in the project. Specifically check the following items: roof pitch (for selection of sheet profile/s) roof selection specified vs. actual required including protection of th...

2.1 Firstly, check the structure for an acceptable tolerance – steel, trusses etc

3.1 Safety mesh must be provided under all roof sheeting including translucent or other forms of brittle sheeting as a general rule and is mandatory without approval from the certifier. 3.2 Galvanised safety mesh is NOT suitable for use withi...

4.1 Insulation must be provided to all roof areas with a soffit (at the eaves) or a ceiling below it (inside the building). 4.2 The thickness is dependent on energy efficiency requirements (from the BCA/NCC/NCC) and must be specified by...

5.1 Ensure the roof materials are suitable for application. It should be robust enough for the expected / intended traffic. The thicker the roof sheets (BMT - base metal thickness) the more robust generally and the Corrugated profile roofs are not...

6.1 All roofing materials are to be installed at NO LESS than the recommended minimum fall specified by the manufacturer – noting that different manufacturers have different falls for products with the same name as other manufacturers. Some manufa...

Screws 7.1 Use correct corrosion resistant class, length and gauge roofing screw with black EPDM (a synthetic rubber) seals driven to a moderate compression of the seal to the roof, and use the required cyclone washers/clips to secure the roo...