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The
straw bale building has been an ongoing project at the Centre
for the past three summers.
Initially it
was a partnership between the Mt Arthur Centre and the Architecture
Department of the University of Tasmania, Launceston campus.
Matthew Parnell
was the building technology expert and Richard Burnham the
architect. With ideas from the architecture students (who
were assessed for this as part of their course) the Mt Arthur
Centre board members and community members have had many
times of fun and learning experiences.
From
this a community built structure is emerging, showing how
to build in an ecologically friendly manner using as little
technology as possible.
To date the
people who have worked on this project have enjoyed a wide
variety of interaction between International students from
Singapore, Malaysia, India and China; local Lilydale residents
both young and old, a range of people from around Tasmania
and a group of young people from Perth (Tasmania) who have
been coming regularly for the past two summers.
The
process involved a lot of planning and organising which
the students were initially involved in. Things like, gathering
information regarding the feasibility of using straw bales
as infill for the walls, council approval, material use
and sourcing these materials (a lot of which were recycled
timbers, bricks and blocks) and making models of the straw
bale, sod roofed building. The models were made mainly in
the University workshops.
A lot of research
was done to establish what type of render to use. The render
is made from the earth which was dug from the footings,
sand, a small amount of cow dung and water, sieved and mixed
by hand (shovel) in wheelbarrows. On some walls a small
amount of llama wool was added as an experiment. Each coat
of render must be completely dry before the next one goes
on top. So far there are three coats of render on the inside
and outside of the building.
In the roof
three different types of waterproofing were used. The roof
was then filled with a layer of gravel, some earth from
the footings and some natural fibre (fine bark) to encourage
the native grasses/plant species to grow. There is a slope
on the roof to make sure it drains well.
A
major part of a project such as this is the social aspect.
At lunch times most people bring something to put on the
table to share, then we have a lovely time chatting and
getting to know each other better. Lots of jokes and a feeling
of satisfaction are often talked about.
If you would
like to become involved with the finishing off of the straw
bale, sod roof building please check out the diary dates
(working bees are usually held on Saturdays) or phone the
Centre for more information.
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