The growing urban sprawl surrounding Australia's capital cities, combined with the baby boomer tree-change and sea-change phenomena, has increased the need and demand for fire-resistant homes, building advisory service Archicentre warned this week.
Victorian State Manager David Hallett said that stark memories of the major fires that have swept through most states in Australia over the past decade, together with current fires in South Australia, Tasmania and New South Wales, continue to place a focus on the importance of building fire-resistant homes.
"Traditionally people have seen fire resistant homes as a regional or rural issue", Hallett said.
He pointed out that the urban sprawl is placing tens of thousands of new homes on the fringe of major cities every year, often interfacing with state forests.
This situation is being compounded as baby boomers move away from the cities into coastal and rural areas.
"Anyone building a new home or renovating on the urban fringe should ensure fire prevention standards are included in their design and permit applications."
Mr Hallett advised homebuyers to be aware of local, state or national building standards, to complete a Bushfire Attack Level (BAL) assessment of their property before they move in and to consider upgrading the building to reflect current requirements.
The Bushfire Attack Level (BAL) assessment is part of the residential building Australian Standard, (AS 3959-2009), to improve the ability of buildings to withstand attack from bushfires. The BAL takes into consideration a number of factors including the Fire Danger Index, the slope of land, types of surrounding vegetation and its proximity to any building.
"Information on fire resistant home design should also become part of apprenticeship training programs for builders and associated trades such as plumbers, electricians, carpenters and landscapers in relation to fire resistant plants as a whole-of-industry approach", Mr Hallett suggested.
"A well-designed and sited home including fire prevention measures stands a significantly better chance of survival especially after the fire has passed."
Archicentre's Bushfire Design Guide, which is available for download, contains advice for homeowners and builders and covers topics including.
Design Principles in Bushfire Prone Areas :
- Keep the exterior design of the house simple and avoid crevices or cracks where burning material can lodge.
- Avoid decorative timberwork such as trellis and lattice-work on exposed areas of the building. Remember timber balconies and decks are also high danger areas for trapping burning debris and should be kept to a minimum.
- Make sure you have any chimneys screened off to stop embers blowing down the chimney during the fire and entering the home.
- In designing the home ensure the use of leafless guttering or if allowed by council install ground level rubble drain collectors.
Management Issues:
- Do not store firewood against or under the home
- Make sure all doors have close fitting screens
- Clear all debris from guttering and decks
- Have a fire emergency plan - check with local fire brigade
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