We have been continuing to work on our ceramic wall along the front of our property. We have 120 metres of frontage to the street. It’s my intention to replace the old fence with something that is more fire proof for when the next fire comes, sometime in the next decade? The original fence was the old style post and lintel, but being timber and being 127 years old, there were only 3 substancial morticed posts left in the ground when we arrived here in 1976. We know from these relics that it was a 3 rail fence. The very last post burnt in this last fire and smouldered all the way down into the ground leaving a perfectly round hole where it once stood.
This new fence is designed to be as fire resistant as possible, hence the steel posts welded in pairs to seperate the front hot face from the back cooler side, to stop the metal bending over in the heat. I have also filled each post with sand and rammed it solid to give the post a solid thermal mass, so that it wont heat up to deformation temperature in the short time that a fire front passes. I looked at all the ruined fences around here, post fire, and timber completely disapears, it’s also very expensive. Cliplok metal fence systems just buckle and collapse and arn’t cheap. Full masonary walls are OK, but are the most expensive in both labour and material. There is also the drawback that a masonary wall needs an engineered footing of reinfored concrete and steel, all more expense.
I have been trying to think of very cheap/cost effective solutions to all our rebuilding problems/opportunities, solutions that we can live with aesthetically and also aford. As well as this, everything has to be as fire resistant as is possible. I decided on my poor man’s imitation gabian wall idea, as it met all my requirements of cost and fire resistance. I also need everything that we do to be as beautiful, or at least as interesting as possible. To this end, I decided to fill the gabian sections with re-cycled building agregate in a moving wave pattern, as this is the cheapest ceramic fill available and this makes up about 50% of the wall. We also used 30% of black ballast rock for contrast, as this is also relatively cheap at $70 per tonne. The black wave runs as a countrepoint to the grey concrete wave. We crushed up some old terra cotta to make a colour change and a bit of detail. This is about 5% of the wall and is free, but took some time as we smashed it all up by hand with hammers, as all my rock crushers were burnt in the fire. The terra cotta is placed in ‘lenses’ in some parts of the wall, to hint at a sedimentary reference in the landscape here at the edge of the Sydney sandstone basin. To finish off the wall, we bought a small amout of round, water-worn pebbles to fill up the last 10 to 15% of the wall volume, to cap off the wall. These pebbles are the most expensive part of the wall at $90 a tonne, but we limited our use of these to just a few tonnes to minimise the cost. These pale pebbles accomodate the sweeping wave of energy in the wall pattern and bring it back to equilibrium and tranquility. The dark energy sweeps and undulates through the stoney medium, it represents my dark times, it’s always there, but rarely breaks the surface, the steady, even, bright whiteness nearly alway prevails over the dakness.
We have now completed all the 1200mm high wall sections, about 90 metres, at a cost of $1200 for the fill, this was possible because the steel yard where I have bought all my steel for the past 40 years, donated $2000 of credit into our account to help us in our re-building. We now have 90 metres of interesting and fire resistant fence. The real cost is in the labour that we, and a lot of friends, have put in to make it happen. One very good thing about building such a fence as this is that we can turn up and do a bit when ever we have a day ‘off’, and time to spare. The last 30 metre section of the wall will be built 1800mm high in front of the house to give us extra protection from the ground fire in the next fire event.
We have also planted a lilli-pilli hedge all the way along the wall to give somewhere for the little birds to live. Lillipillis are reasonably fire tollerant. They don’t add to the spread of flme. They have small leathery leaves that tend to just shrivel instead of burning. We hope that they will act as an ember filter in the next fire event, as well as acting as a safe bird habitat in the mean time.
Other than that, we have been continuing to burn off the piles of burn trees, twisted branches and clayey root balls that are left over from the 16 truck loads of fire debris that we dumped on our spare block next door. This is where we used to stack all our fire wood, well away from the house. We very good strategy as it turned out, as all 50 tonnes of wood that we had stock piled ready for the kiln and house use in the coming years was all destroyed in the fire. Not one stick of wood was left on our land after the fire had pased through. As we cleaned up after the fire, we cut any straight sections of tree trunks into kiln sized lengths and stacked them. All the twisted, forked and nasty bits have been burnt in 10 tonne piles over the winter. Each pile left a few ugly root balls that didn’t burn, so the last time we had the excavator here, we had Ross collect all these remnant bits together and make a new, last pile. We needed to get this burnt before the spring and the new fire restrictions period begin. We lit it last week and it burnt for 3 days. We now have only two ugly clay and stone packed root balls that didn’t burn. I may be able to knock them about with the tractor to shake off some of the soil and rocks to get them seperated, so that they can be burnt at some later date. It has been a mamoth task to get all these piles burnt and cleared away over the winter, while also getting the orchard built and planted before bud burst. We have run to a tight schedule.
Everything is starting to come together now. We have a delivery date from the steel rolling company for delivery of our steel shed frames on the 19th of September, so just 3 weeks left for us to finish all the fences and garden. before the building work commences. I have worn through 4 pairs of heavy leather gloves, two pairs of light gardening gloves, ruined one straw hat and worn though 3 pairs of jeans, patched the knees and worn through those patches and re-patched them from thigh to knee, ready for the next onslaught of hard work. I hate to throw out anything that still has life left in it. I like to get at least 5 years of hard wear out of a pair of jeans before thay are relagated to kiln factory rags. I am very grateful to be able to live this life of frugal creativity.Nothing is ever finished, nothing is perfect and nothing lasts.