What does Bal-19 require?

Bushfire Attack Level (BAL) – 19 (Moderate) BAL—19 is primarily concerned with protection of your building from ember attack and burning debris ignited by wind borne embers and radiant heat up to and including 19 kW/m2.

What is the difference between Bal-12.5 and Bal-19?

BAL-LOW Low risk of bushfire attack does not warrant specific construction requirements. BAL-12.5 Possibility of ember attack. BAL-19 Increasing level of predicted ember attack and burning debris ignited by windborne embers together with increasing heat flux not greater than 19kW/m2.

What is the difference between Bal-19 and Bal-29?

BAL-19 Increasing levels of ember attack and burning debris ignited by windborne embers together with increasing heat flux between 12.5 and 19 kWm2. BAL-29 Increasing levels of ember attack and burning debris ignited by windborne embers together with increasing heat flux between 19 and 29 kWm2.

How is Bal rating determined?

A Bushfire Attack Level (BAL) is a means of measuring the severity of a building’s potential exposure to ember attack, radiant heat and direct flame contact. It’s measured in increments of radiant heat (expressed in kilowatts/m2).

How much does a bal cost?

BAL Construction Costs

	Base House	Large two-storey
BAL- LOW	$0	$0
BAL-12.5	$11,535 ($13,000)	$14,981 ($16,500)
BAL-19	$11,535 ($13,000)	$14,981 ($16,500)
BAL-29	$15,471 ($17,100)	$17,095 ($19,000)

How much does a BAL rating cost?

How much are bushfire shutters?

These shutters are manually operated and will be in the range of $750/m² to $1500/m², depending on the window layout. Roller shutters, with their stainless steel slat curtain, sit around the middle of hinged shutter cost, at around $1100/m².

Are there special construction requirements for Bal 19?

No special construction requirements. As for BAL–19. Enclosure by external wall or by steel, bronze or aluminium mesh. {It is unclear if you can use non-combustible or naturally fire resistant timber supports and have the subfloor unenclosed.} Enclosure by external wall or by steel, bronze or aluminium mesh.

What are the requirements for a Bushfire Attack Level ( BAL )?

AS3959 lists bushfire construction requirements for Bushfire Attack Level (BAL) as following: Walls of a structure to achieve compliance with a Bushfire Attack Level (BAL) rating of BAL 19 are to be of non-combustible material, or cladded with non-combustible materials or a combination of the materials specified by the AS3959.

What’s the difference between Bal and complying Bal?

not present BAL LEVELS DESCRIPTION COMPLYING BAL – LOW There is insufficient risk to warrant sp YES YES BAL – 12.5 Ember attack. YES BAL – 19 Increasing levels of ember attack and bu YES BAL – 29 Increasing levels of ember attack and bu

Do you need a Bal certificate for complying development?

For complying development to occur on lots considered to be low bush fire risk, the land must be certified as being below a BAL 29 risk rating and meet specific development standards for construction on such land. The BAL certificate should also certify the land and any associated access in not BAL 40 or BAL FZ.