BAL40 Bushfire Rated

A BAL rating is a Bushfire Attack Level (BAL) used to determine the potential for bushfire on a property.

BAL40 is the highest rating before direct exposure to flames level and specifically refers to an increase in radiant heat from burning debris ignited by windborne embers.

A BAL40 test was recently performed on the following KlassicView systems:

-KlassicView 76mm Awning Window
-KlassicView 76mm Fixed Frame
-KlassicView 76mm Sliding Window
-KlassicView Sliding Stacking Door

Warringtonfire conducted the BAL40 test in June 2021, in accordance with the requirements outlined in AS1530.8.1
The above mentioned systems exceeded testing requirements and was able to withstand temperatures of up to 40kW without compromising the frame and glazing system.
These systems are rated for BAL40 and can provide protection against ember attacks, burning debris, and exposure to flames.

Bush Fire Rated Windows

Bushfire Attack Levels (BAL)

BAL LevelsDescriptionKlassicView window & door systems compliance
BAL - LOWThere is insufficient risk to warrant specific construction requirements.tick
BAL - 12.5Ember attacktick
BAL - 19Increasing levels of ember attack and burning debris ignited by windborne embers together with increasing heat flux between 12.5 and 19 kW m2.tick
BAL - 29Increasing levels of ember attack and burning debris ignited by windborne embers together with increasing heat flux between 19 and 29 kW m2.tick
BAL - 40Increasing levels of ember attack and burning debris ignited by windborne embers together with increasing heat flux with the increased likelihood of exposure to flames.tick
BAL - FZDirect exposure to flames from fire front in addition to heat flux and ember attack.cross

For more information

please contact our R&D Department

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