No subject
Fri Dec 8 00:22:55 EST 2006
</excerpt>of radiata
<excerpt>pine in the near future. Must have been wrong. Maybe it's
</excerpt>different for
<excerpt>hardwoods.
...So theft of increasingly valuable timbers will continue
</excerpt>unless more
<excerpt>people are aware. It may become more valuable than gold or
</excerpt>ivory or
<excerpt>rhino horn etc...
Maybe. And it is likely to continue unless a concerted,
</excerpt>national
<excerpt>programme to deter the purchase of such timbers is
</excerpt>instituted. This
<excerpt>takes money and time. The alternative is to introduce
</excerpt>legislation to
<excerpt>deter importation of these timbers. This too is a big job
</excerpt>for a
<excerpt>thinly-spread activist community.
In relation on Four Corners to allegations of corruption and
</excerpt>illegal
<excerpt>logging in the Asian timber trade, there is another
</excerpt>allegation that
<excerpt>gives the business a more sinister and politically
</excerpt>destabilising impact.
<excerpt>
Made a few weeks ago in the Weekend Herald, the allegation
</excerpt>was that
<excerpt>Asian logging companies, among others, were importing into
</excerpt>PNG modern
<excerpt>weapons concealed in containers. These supplemented arms
</excerpt>shipments via
<excerpt>speedboat from Australia, those coming over the Indonesian
</excerpt>border, other
<excerpt>left over form the civil war on Bougainville and others from
</excerpt>the PNGDF,
<excerpt>including AK47s, M16s and AR15s (for those unfamiliar with
</excerpt>weapons,
<excerpt>these are modern, automatic military-issue weapons with high
</excerpt>rates of
<excerpt>fire). The context of the Herald story was the violence of
</excerpt>the PNG
<excerpt>national elections.
This implies that those involved in these weapons transfers
</excerpt>are
<excerpt>participating in the active destabilisation of the region,
</excerpt>the growth of
<excerpt>crime (including the crime of illegal timber trading) as
</excerpt>some weapons
<excerpt>are traded in the PNG highlands for drugs that are then
</excerpt>exported to
<excerpt>countries of demand, and the futility of development
</excerpt>assistance efforts
<excerpt>in failed or failing states in the region.
The only response to this level of crime, of course, is,
</excerpt>initially, a
<excerpt>very strong policing response on a regional scale, based on
</excerpt>reliable,
<excerpt>careful intelligence; soft words fall on hard ears and are
</excerpt>not heard.
<excerpt>That would be followed by regional political initiatives to
</excerpt>consolidate
<excerpt>gains made and throttle the illegal timber/ weapons industry.
The environment lobby in developed countries such as
</excerpt>Australia and New
<excerpt>Zealand could play a positive role were such initiatives
</excerpt>ever to be
<excerpt>instigated through their capacity to lobby government and
</excerpt>educate
<excerpt>citizens about purchase of materials that supported regional
sustainability.
...Russ Grayson
________________
Date: Mon, 5 Aug 2002 14:47:25 +1000
From: Pacific Edge Permaculture + Media
</excerpt><<pacedge at magna.com.au>
<excerpt>Subject: Re: [permaculture-oceania] Fw: 4 CORNERS - TIMBER
To: permaculture-oceania at lists.cat.org.au
In the IT business there's a concept called 'TCO'. It stands
</excerpt>for 'Total
<excerpt>Cost of Ownership' and it refers to the total cost of
</excerpt>systems aggregated
<excerpt>over the expected lifetime of the system. I think something
</excerpt>analogous
<excerpt>can be applied to building.
The 'lifecycle analysis' (LCA) process applied in product
</excerpt>design is
<excerpt>something similar, looking at the social and environmental
</excerpt>costs
<excerpt>associated with product development, from the sourcing of
</excerpt>raw materials
<excerpt>to the disposal of the product at end of life. The
</excerpt>Stringybark Grove
<excerpt>energy, water and materials efficient townhouse development
</excerpt>in Sydney in
<excerpt>the early 1990s used this type of analysis. Generally, LCA
</excerpt>seems to have
<excerpt>been applied with an environmental bias, having been co-
</excerpt>opted by
<excerpt>environmentalists to highlight the environmental costs of
</excerpt>product and
<excerpt>materials and in uses I have seen does not include financial
</excerpt>factors or
<excerpt>the time of users of materials absorbed in their maintenance.
I think that TCO could be applied to the question of the use
</excerpt>of timber
<excerpt>as a construction material that this discussion has focused
</excerpt>on. In a
<excerpt>wider sense, LCA can be applied to older buildings that
</excerpt>people might be
<excerpt>thinking of renovating.
What I have in mind is the maintenance required to keep
</excerpt>timber
<excerpt>structures in good order over the years, especially as they
</excerpt>get older.
<excerpt>Now, I have no facts or figures to offer, just questions. My
</excerpt>questions
<excerpt>stem from:
1. recent experience with minor renovations of a building
</excerpt>erected during
<excerpt>the 1970s
2. observations of neighbours carrying our renovations
3. concern expressed by a friend over demolitions of
</excerpt>residential
<excerpt>buildings adjoining her house.
In instance 1, the need to replace rotting, weather-exposed
</excerpt>timbers, the
<excerpt>need to repaint (with the waste disposal problems of paints
</excerpt>and timber
<excerpt>finishes wastes) and the obvious requirement for regular
</excerpt>maintenance of
<excerpt>timber structures leads me to ask whether steel structural
</excerpt>elements and
<excerpt>concrete walling, despite initial, higher LCA costs than
</excerpt>timber, might
<excerpt>not in the long run result in less environmental pollution
</excerpt>and less cost
<excerpt>to the householder.
Instances 2 and 3 involved both private residents and a
</excerpt>construction
<excerpt>company demolishing old fibro (asbestos cement) houses
</excerpt>without use of
<excerpt>the required safety precautions for handling this dangerous
</excerpt>material.
<excerpt>The fact that the home renovators were immigrants leads me
</excerpt>to wonder
<excerpt>whether there should be some process to go through before
</excerpt>demolition, in
<excerpt>which a responsible authority verifies that the renovators
</excerpt>understand
<excerpt>and makes use of the safety precautions. It also leads me to
</excerpt>ask whether
<excerpt>immigrants joining the building industry, in the interests
</excerpt>of their own
<excerpt>and the wider public safety, should not go through training
</excerpt>and
<excerpt>certification before being allowed to practice, that they
</excerpt>understand
<excerpt>safe materials handling and removal.
What would be useful is a table estimating the TCO, time in
</excerpt>maintenance
<excerpt>and cost estimate in dollar values at time of building or
</excerpt>renovation for
<excerpt>timber, steel and concrete.
IN PRAISE OF NEW BUILDINGS
Most retrofitting of energy efficient technologies will be
</excerpt>to existing
<excerpt>housing stock because, to my understanding, it is cheaper to
</excerpt>renovate
<excerpt>and retrofit than to demolish and rebuild. This makes TCO
</excerpt>factors
<excerpt>pertinent as well as accessible information on the safe
</excerpt>handling of
<excerpt>hazardous materials. Much of this information is available
</excerpt>online.
<excerpt>
Old houses are seldom energy efficient. I was told by a
</excerpt>person in the
<excerpt>business that installing solar water heating in the building
</excerpt>I inhabit,
<excerpt>for instance, was likely to be of limited efficiency because
</excerpt>of the
<excerpt>building's orientation to the sun and the steepness of the
</excerpt>roof.
<excerpt>Installing insulation would be of benefit but quite costly.
</excerpt>When the
<excerpt>structure was built in the 1970s, insulation put in was
</excerpt>minimal.
<excerpt>Placement of windows, too, left a lot to be desired in terms
</excerpt>of thermal
<excerpt>efficiency and light.
And that leads me to another question: with the toxicity of
</excerpt>old building
<excerpt>materials, the often poor access to light via windows and
</excerpt>the effect on
<excerpt>building thermal efficiency attributable to window placement
</excerpt>and lack of
<excerpt>insulation, it would seem that modern buildings, especially
</excerpt>those using
<excerpt>concrete and glass, often have a distinct advantage. So,
</excerpt>does concrete,
<excerpt>steel and large areas of glass (properly shaded in summer
</excerpt>and with
<excerpt>proper orientation) have a valuable role in better building?
</excerpt>Concrete,
<excerpt>for instance, has better thermal mass than timber (making
</excerpt>timber a good
<excerpt>choice for the subtropics and areas north) and, used
</excerpt>thoughtfully,
<excerpt>should contribute to lower heating and cooling energy costs.
</excerpt>Likewise
<excerpt>the proper use of glass in reducing electricity consumption
</excerpt>in
<excerpt>artificial lighting.
And there's another pertinent factor in favour of modern
</excerpt>materials (I'm
<excerpt>not talking about chipboard and the like, even though the
</excerpt>outgassing of
<excerpt>possibly toxins reduced the potential for adverse health
</excerpt>effects over
<excerpt>time) - the design is often better than old housing stock. I
</excerpt>am aware
<excerpt>that some modern building materials do have potential health
</excerpt>problems,
<excerpt>such as toxic outgassing from particleboard, furnishing
</excerpt>materials and so
<excerpt>on and that this needs to be addressed, however such
</excerpt>shortcomings should
<excerpt>not deflect us from an awareness that older buildings are
</excerpt>equally or
<excerpt>even more dangerous and may require higher time and
</excerpt>financial coats for
<excerpt>maintenance over the years than concrete, steel and glass.
BUCKY'S GOOD IDEA
The polymath, Buckminstrer Fuller, was an experimenter with
prefabricated housing in the 1940s and 1950s. People who are
</excerpt>too young
<excerpt>to have a decent knowledge of recent innovation might still
</excerpt>be aware
<excerpt>that Bucky invented the geodesic dome. Bucky's experiments
</excerpt>in prefab
<excerpt>housing were developed around his 'dymaxiion' concept and,
</excerpt>in one
<excerpt>iteration at least, made use of aluminium. It is certain
</excerpt>that Bucky
<excerpt>lived ahead of his time as far as innovation went - the
</excerpt>correct place
<excerpt>for a practical visionary.
But it's the principle of prefab housing which deserves
</excerpt>renewed
<excerpt>attention today. Sure, there are prefabs on the market but
</excerpt>from what I
<excerpt>have seen they lack energy efficient performance. And it's
</excerpt>this which
<excerpt>interests me - why can't we have energy efficient prefab
</excerpt>housing
<excerpt>developed to be scaleable around standard modules, produced
</excerpt>in a
<excerpt>workshop then trucked to site and erected by a small crew.
The point is to increase cheaper access to housing, to make
</excerpt>housing
<excerpt>affordable to more people and to further the spread of home
</excerpt>ownership.
<excerpt>
Back in the 1980s, I met a man by the name of Doug. I don't
</excerpt>remember his
<excerpt>last name but he lived near Bathurst and he made prefab
</excerpt>hexagonal
<excerpt>'yurts' modeled on the portable Mongolian structures. The
</excerpt>structure's
<excerpt>supporting element was a stainless steel cable tensioned
</excerpt>around the
<excerpt>upper circumference of the building. The thing about these
</excerpt>strong,
<excerpt>timber structures was that Doug made a range of models at a
</excerpt>range of
<excerpt>sizes, single and double storied, in a range of timbers. He
</excerpt>looked after
<excerpt>council approval and would truck them anywhere and, with his
</excerpt>crew, erect
<excerpt>them in no time at all.
I wonder if something similar - not necessarily a yurt -
</excerpt>could be
<excerpt>manufactured from either natural materials or perhaps using
</excerpt>a steel
<excerpt>supporting substructure with thin but strong concrete slab
</excerpt>sides and
<excerpt>insulated metal roof? Alternatively, it might be worth
</excerpt>looking for
<excerpt>lightweight, synthetic materials or composites with good
</excerpt>thermal
<excerpt>properties or materials with poorer thermal properties but
</excerpt>using design
<excerpt>elements such as eaves, pergolas and so on to compensate for
</excerpt>inferior
<excerpt>thermal performance. The purpose would be to produce prefab
</excerpt>housing with
<excerpt>a minimum 3.5 energy star rating (the minimum specified
</excerpt>under energy
<excerpt>efficiency performance for local government areas
</excerpt>participating in the
<excerpt>NSW Sustainable Energy Development Authority's Energy Smart
</excerpt>Homes
<excerpt>Scheme).
I know that building purists will say that, in thermal
</excerpt>performance, you
<excerpt>can't beat mudbrick or earth construction. I agree. But
</excerpt>earth
<excerpt>construction is not widely accessible because of time
</excerpt>constraints (most
<excerpt>people I know who built earth construction houses took quite
</excerpt>a long
<excerpt>time) or the high cost of having someone build the structure
</excerpt>if you do
<excerpt>not have the time available. It would seem that the common
</excerpt>hollow
<excerpt>concrete brick offers a potentially energy efficient
</excerpt>solution to solid
<excerpt>concrete walls when coupled to good design.
Bucky designed one model of his prefab house to be stackable
</excerpt>on a
<excerpt>central support/ access, erecting what is in effect was a
</excerpt>small
<excerpt>apartment block of up to five stories. And that's a good
</excerpt>height,
<excerpt>according to a designer friend who had experience in the
</excerpt>more densely
<excerpt>populated, older suburbs of German cities. She told me that
</excerpt>the maximum
<excerpt>height for medium density apartment style housing should be
</excerpt>that at
<excerpt>which you can recognise the face of friends in the street
</excerpt>below - and
<excerpt>that turns out ro be around six levels.
So, is it worth reconsidering modern materials for building
</excerpt>or are we to
<excerpt>remain in the realm of the past, the traditional? Bucky
</excerpt>wrote that the
<excerpt>building industry was certainly an archaic one. Where all
</excerpt>other major
<excerpt>industries had changed their approach and techniques over
</excerpt>time, building
<excerpt>was the only one still using techniques thousands of years
</excerpt>old. It was
<excerpt>time, he said, to consider new approaches, new materials. In
</excerpt>part, this
<excerpt>conservatism is due to the fact that the old techniques
</excerpt>still work.
<excerpt>
But today, all over the world, there is a growing need, a
</excerpt>growing
<excerpt>urgency, to find cheaper and more energy efficient
</excerpt>techniques and
<excerpt>approaches to building, approaches that are affordable and
</excerpt>accessible to
<excerpt>a great many more people. This must mean that, while not
</excerpt>abandoning
<excerpt>traditional techniques and materials, we must honestly
</excerpt>consider new
<excerpt>materials and design approaches, even synthetics, that we
</excerpt>apply TCO
<excerpt>principles to the renovation of older structures and that we
</excerpt>develop
<excerpt>cheap models of efficient prefab housing that people can set
</excerpt>up to the
<excerpt>size they require and adapt through the addition and
</excerpt>subtraction of
<excerpt>modules. Surely, with today's scientific knowledge, with the
</excerpt>innovation
<excerpt>so often demanded of industry, we can do better, we can do
</excerpt>more with
<excerpt>less and do it better than it has been done.
...Russ Grayson
On Friday, August 2, 2002, at 10:31 PM, Kathryn wrote:
<excerpt>Coincidently,I was talking to a builder person today & he
</excerpt></excerpt>said that
<excerpt><excerpt>timber
will be unavailable in Australia in 12 years time, except
</excerpt></excerpt>for plantation
<excerpt><excerpt>timber, which will need many more years before it is
ready
</excerpt></excerpt>& there's not
<excerpt><excerpt>enough to satisfy growing demand anyway.
I said then the price of imported timbers will obviously
</excerpt></excerpt>soar in price.
<excerpt><excerpt>Therefore solid timber furniture new (if you can get
it)
</excerpt></excerpt>or second hand
<excerpt><excerpt>will
also soar in price.
I said what will (average) people build their houses with?
Chipboard he said.
Groan!!
So theft of increasingly valuable timbers will continue
</excerpt></excerpt>unless more
<excerpt><excerpt>people
are aware. It may become more valuable than gold or ivory
</excerpt></excerpt>or rhino horn
<excerpt><excerpt>etc
etc
I didn't see that particular show, did they offer any
</excerpt></excerpt>solutions?
<excerpt><excerpt>
Kathryn Gregg
Beaches LETS
Buderim Qld
----- Original Message -----
From: "Penny Ferguson" <<fergusonp at bigpond.com>
To: "permaculture oceania" <<permaculture-
</excerpt></excerpt>oceania at lists.cat.org.au>
<excerpt><excerpt>Sent: Friday, August 02, 2002 4:39 PM
Subject: [permaculture-oceania] Fw: 4 CORNERS - TIMBER
<excerpt>Re ABC TV 4 Corners program on rainforest timber
</excerpt></excerpt></excerpt>thefts. this was one
<excerpt><excerpt><excerpt>response on Friends of the ABC list. It's
something we
</excerpt></excerpt></excerpt>should all be
<excerpt><excerpt><excerpt>thinking about - buying stolen goods.
Penny Ferguson
----- Original Message -----
Subject: 4 CORNERS - TIMBER
<excerpt><excerpt>I think that the best way of ensuring you don't
support
</excerpt></excerpt></excerpt></excerpt></excerpt>this
<excerpt><excerpt>horrendous
<excerpt><excerpt>activity is to stipulate to your supplier that you
do
</excerpt></excerpt></excerpt></excerpt>not wish to buy
<excerpt><excerpt>any
<excerpt><excerpt>timber sourced from rainforests, either here in
</excerpt></excerpt></excerpt></excerpt>Australia or from
<excerpt><excerpt><excerpt>overseas,
<excerpt>and to express to your supplier that they or their
</excerpt></excerpt></excerpt></excerpt>suppliers should
<excerpt><excerpt><excerpt><excerpt>make
</excerpt>the
<excerpt>effort to find out from where the timber is sourced and
</excerpt></excerpt></excerpt></excerpt>take an
<excerpt><excerpt><excerpt>appropriate
<excerpt>stand.
To me, it's the least we can do as an individual. If we
</excerpt></excerpt></excerpt></excerpt>force the
<excerpt><excerpt><excerpt><excerpt>issue
things may have an opportunity of changing.
Aina
</excerpt>
_______________________________________________
permaculture-oceania mailing list
permaculture-oceania at lists.cat.org.au
http://lists.cat.org.au/cgi-
</excerpt></excerpt></excerpt>bin/mailman/listinfo/permaculture-oceania
<excerpt><excerpt><excerpt>
</excerpt>
_______________________________________________
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<excerpt><excerpt>
</excerpt>
________________
Date: Mon, 5 Aug 2002 15:18:05 +1000
From: Pacific Edge Permaculture + Media
</excerpt><<pacedge at magna.com.au>
<excerpt>Subject: Re: [permaculture-oceania] Yakon recipes?
To: permaculture-oceania at lists.cat.org.au
Hi Mitra...
Yakon (aka: Peruvian ground apple; Polymnia sanchifolia) are
</excerpt>fine raw.
<excerpt>Marinate in lemon (perhaps lime?) juice.
Nice snack.
...Russ Grayson
On Saturday, August 3, 2002, at 06:53 PM, Mitra wrote:
<excerpt>Continuing the recipe theme ....
Does anyone know a good recipe for Yakon, I harvested my
</excerpt></excerpt>first batch
<excerpt><excerpt>yesterday, steamed them and added some garlic chives
to
</excerpt></excerpt>try out on
<excerpt><excerpt>neighbors at a "bring a plate" dinner. The response
was
</excerpt></excerpt>underwhelming
<excerpt><excerpt>(half the people liked but "so what" and the others
didn't
</excerpt></excerpt>like them)
<excerpt><excerpt>so I'm wondering if there are some better ways to
prepare
</excerpt></excerpt>them.
<excerpt><excerpt>
- Mitra
-----------------------------------------------------------
</excerpt></excerpt>---------------
<excerpt><excerpt>* http://www.mitra.biz
* Tyagarah Sustainable Community Alliance (Tyagarah
</excerpt></excerpt>Progress
<excerpt><excerpt>Association) www.tyagarah.org
* mitra at mitra.biz
* Home 02-6684-8096, let it ring as it forwards to my
</excerpt></excerpt>mobile
<excerpt><excerpt>0414-648-722 fax 07-3319-6130
*
**** Life is a mystery to be lived, not a problem to be
</excerpt></excerpt>solved ******>
<excerpt><excerpt>
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<excerpt><excerpt>
</excerpt>
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