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A Guide to Windows & Doors in Bushfire Prone Areas

Wilkins Windows offer a range of windows and doors in either Timber or uPVC that comply with the Australian Standard AS 3959.

To determine your home?s BAL rating and any special requirements for building in your area, consult your local council, government or local fire authority.

Safety must always come first, so with this in mind once you have your BAL rating, you can rely on Wilkins Windows to deliver your choice of windows and doors without comprising your design.


  • Cedar
  • Merbau
  • uPVC
  • Awning
  • Casement
  • Double Hung
  • Fixed
  • Sliding
  • Tilt & Turn


  • Cedar
  • Merbau
  • uPVC
  • French Doors
  • Hinged
  • Lift & Slide
  • Slidings
  • Stacking
  • Tilt & Turn

The standard AS3959 outlines different construction practises and building materials for five bushfire hazard levels. These are known as BALs (Bushfire Attack Levels).

BAL 12.5 Low Concern of Ember Attack
BAL 19 Moderate Increased level of ember attack & burning debris, radiant heat up to 19kwm squared
BAL 29 High Greater risk from airborne burning debris, further risk from radiant heat exposure up to 29kwm squared
BAL 40 Very High Burning debris ignited by windborne embers & radiant heat exposure up to 40kwm squared
BAL FZ Flame Zone Direct flame contact from fire front & radiant heat exposure greater than 40kwm squared

Wilkins Windows can supply Windows & Doors in Timber and uPVC upto BAL 40.