Kenlynn Castaways Beach BMP

7.1       Building Construction and Design

With a 12m (minimum) setback between dwellings and unmanaged fuel Areas 2, 3 and 4, BAL 29
construction is shown to be viable under Method 2 of AS3959-2009. With a minimum setback of 10m
between the dwelling on Lot 2 and unmanaged fuel Area 1, BAL 29 is viable.

Any other structures built within 6m of the residential building shall also comply with AS3959-2009
construction requirements.


7.2       Asset Protection Zones and Landscaping

Asset protection zones are the most strategically valuable defence against radiant heat and flame, and to a
lesser extent embers.




Figure 16. Components of an Asset Protection Zone (APZ)

Lot Owners of Lot 1 will maintain an “Inner Protection Area” (IPA) of 12m (minimum) on all sides of the
dwelling. Lot Owners of Lot 2 will maintain an IPA of a minimum 10m to the west and south and 12m to the
east of the dwelling.

        Plants retained in or introduced into the IPA should be selected based on low combustibility, by virtue
         of high moisture content, low volatile oil content, high leaf mineral levels, large fleshy leaves, absence
         of shedding bark.
        Plant arrangement is just as important as low combustibility. Plants should be placed so as to
         minimize either vertical or horizontal connectedness of plant material. Appendix 1 provides examples
         of less hazardous native plant species.
        Combustible vegetation shall not be allowed to come into contact with combustible parts of
         buildings.
        Trees should not be allowed to directly overhang roof lines.
        Regular yard maintenance should be undertaken to remove available fine fuels and debris,
         particularly throughout the fire season.

An Outer Protection Area involves removal of the understorey so as to deprive an advancing fire front of its
fuel continuity, and thereby collapsing the fire front. In this case the APZ for both dwellings will be
constructed and managed as IPA.

The proposed building envelopes shown in Figure 17 provide for the required APZ, whilst minimising
environmental impact.


Report compiled by Bushfire Risk Reducers for Kenlynn Pty Ltd, August 2016                   Page 21