FAQ

Frequently Asked Questions

1What is the difference between Colorbond® and Zincalume®

Both Zincalume® and Colorbond® are Registered Trade Marks of BluescopeLysaght Steel and are manufactured here in Australia. Zincalume® is the modern equivalent of galvanized iron with the same silver finish, only longer lasting and much lighter. It is steel coated in a zinc/aluminium/magnesium alloy making it durable, strong and corrosion resistant.

Colorbond® is Zincalume steel with an adhesive, primer and a high gloss colour layer baked onto it. There are over 20 colours to choose from. Both come with BluescopeLysaght’s product warranty and The Roof & Wall Doctor no leak guarantee.

2What are Tie Downs and why do I need them?

Tie Downs are basically anchor points used to secure your new roof to your home. Tiles are very heavy which enables them to stay in place. Your new Colorbond® or Zincalume® roof is very light, and therefore must be fastened to the roof structure or the walls.

The Roof & Wall Doctor works with a Structural Engineer to make sure your new roof is not only beautiful and functional, but stays in place even in cyclonic winds.

3My roof is sagging in places. Will re-roofing fix this?
The weight of old tiles often causes dips in the roof line, sagging at the corners of your home and uneven gutters – this is unattractive and likely to cause more leaks. When we take off your old tiles we replace those stressed timber battens with steel purlins, building a new framework onto which your new roof is installed. You will instantly be able to appreciate the new look and no leaks.
4I already have insulation. Why do I need more?
Ceiling Batt insulation rests on top of the ceiling and is designed to keep heat in during the winter. Building Blanket insulation (also known as Anticon) is installed between the steel purlins and your new roof sheeting. It is specifically designed to keep the heat out during summer. You will notice the difference it makes, as well as the money saved on energy costs.
5Why do I need a Registered Builder?
If your re-roof is over $20,000 (inc. GST), then the law requires it be carried out by a Registered Builder. If it is not, the work is illegal. A Registered Builder has been examined, in theory and practice, by the Building Commission of Western Australia, and is able to provide all the necessary insurances which protect you from default by the builder for a period of 6 years after completion, bringing compete peace of mind. But even if the re-roof of your home is less than $20,000, why compromise on quality and expertise?
6Why do I need a Building Permit?
Western Australian law states that re-roofing must be approved by your local council. This means submitting a Building Permit Application or risking fines. Nobody likes struggling with paperwork and plans, not to mention finding a Structural Engineer to provide a Tie Down detail! But you don’t have to worry because The Roof & Wall Doctor coordinates all the necessary paperwork and lodges the application on your behalf. It just doesn’t get any simpler than that.
7Do I need to move out while you work?
No. We will identify any hazards or areas to avoid, but you won’t need to vacate the premises.
8How long will it take?
It depends on the size of your home. Most residential re-roofing projects take 1-3 days.

Is your question not answered here? Please call us at (08) 9430 6553 or drop us a line – we are happy to talk to you about your home, your renovation and your needs.