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Bushfire-Rated Windows and Doors from Wilkins Windows

Bushfire-Rated Windows and Doors from Wilkins Windows

With over two decades of experience in the building and construction industry, Wilkins Windows' catalogue includes an invaluable innovative range of bushfire rated windows and doors. They are engineered to maximise the safety of the home and its occupants particularly within bushfire prone areas. The range has been developed in accordance with the revised building standard AS 3959:2018, in which they are tested against a rigorous bushfire attack level (BAL) assessment.

Australian Bushfire Catastrophe 2020

Things are not looking good in Australia at the start of 2020. Catastrophic bushfires have decimated several areas across the east and south, destroying properties, livelihoods, and wildlife habitats alike. The government has ultimately declared a state of emergency.

Bushfire crisis is not new to Australia, having prompted the building industry leaders to improve the standards and requirements needed for the construction of homes in bushfire-prone areas. With the threat of bushfire now becoming extreme, bushfire protected houses are a necessity rather than a luxury.

One way to increase the rate of survivability and reduce property loss is by installing bushfire-rated windows and doors. Outlined below are the practices, materials, and their corresponding bushfire hazard levels, which are integral to the construction of bushfire-rated windows and doors.

BAL (Bushfire Attack Level)

Description & Levels of Exposure

Risk

Window & Glazing Requirements

BAL 12.5

Ember attack

Low

  1. Standard windows fully protected with bushfire shutters or external mesh screens.
  2. Internal and external openings must have metal screens;
    1. Metal component must be used for all exposed external window hardware.
    2. For glazing, a minimum 4mm Grade A safety glass or glass blocks within 400mm of ground.
    3. For window frames with less than 400mm from the ground made from bushfire-rated materials must have a density of or greater than 650kg/m³ metal or metal-reinforced uPVC.

BAL 19

Increased level of ember attack and burning debris with radiant heat exposure between 12.5kW/m² and 19kW/m²

Moderate

  1. Standard windows fully protected with bushfire shutters or external mesh screens.
  2. Metal screens should be used to externally support annealed glass;
    1. Metal screens must also be used internally and externally if a 5mm toughened glass is used.
    2. Metal component must be used for all exposed external window hardware.
    3. For glazing, a minimum 4mm Grade A safety glass or glass blocks within 400mm of ground.
    4. For window frames with less than 400mm from the ground made from bushfire-rated materials must have a density of or greater than 650kg/m³ metal or metal-reinforced uPVC.

BAL 40

Increasing level of ember attack and burning debris with increasing heat exposure between 29kW/m² and 40kW/m²

Very High

  1. Standard windows fully protected with bushfire shutters.
  2. Metal screens must also be used internally and externally if a 5mm toughened glass is used;
    1. Metal components must be used for window frames and hardware.
    2. Use silicone sealants with flammability rate of no greater than 5.

BAL FZ

Immediate exposure to ember attack, flames and heat exposure of more than 40kW/m²

Flame Zone

  1. Standard windows fully protected with bushfire shutters.
  2. The complete window system must pass a fire resistance level test of up to 30 minutes or must be manufactured in compliance with AS1530.8.2.
  3. Openable and fixed windows must be screened.

Wilkins Windows' bushfire-rated windows and doors are engineered in compliance with the improved bushfire requirements, and are certified to withstand blazing fire exposure of up to BAL-40. All their products are comprised of the finest timber or uPVC, integrated with the highest quality of components and the latest glazing technologies. For more information, contact Wilkins Windows or visit www.wilkinswindows.com.au today.



Wilkins Windows Profile

02 9833 2993

12 Harris Street, St Marys, NSW, 2760

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Wilkins Windows Profile

02 9833 2993

ENQUIRE HERE

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