At Fremantle Door & Window Company, we provide custom built external and internal doors to the Perth area. We also build a variety of windows, such as servery windows and casement windows. We build them with 100% ethically sourced, sustainable timber.
Timber is a great material for doors and windows for a number of reasons. It has the best aesthetics of any building material. It helps integrate a building into the natural beauty that surrounds it, especially if the grain is showing. Timber is also a natural insulator which helps cut down on energy bills.
However, timber is more flammable than many other building materials such as steel or bricks and mortar. When building in bushfire prone areas, AS3959 regulates the use of timber. Here are the most important parts of AS3959.
Levels of Construction
If an area is determined to be bushfire prone, it is put into one of three categories: Level 1, Level 2 or Level 3. Level 1 is the safest and Level 3 is the most dangerous. The regulations for Level 3 are much more stringent than those for Level 1.
These three levels of construction fit into four levels of risk. Low risk has no restrictions. Medium risk requires Level 1 construction. High risk requires Level 2 construction. Extreme risk requires Level 3 construction.
Doors, Windows and Construction Levels
For Level 1 or Level 2 construction, there are no restrictions on doors. A timber door is not deemed to be dangerous. If you build in a Level 3 zone, your timber doors must be treated for fire resistance, be made of a timber that provides natural fire resistance or protected by a non-combustible covering. The other option is that it can be a solid-core door of at least 35mm.
There are no restrictions on windows in Level 1. In Levels 2 and 3, windows must be fire-retardant or protected by fire-retardant shutters.
To learn more, call Fremantle Door & Window Company today: 1300 308 323.