Last week I was lucky enough to score an invitation to tour the new Sustainability Learning Centre, under construction here in Hobart (thank you, day job!)
Developed as a partnership between the Department of Education, Greening Australia, the Catholic Education Office, the Association of Independent Schools of Tasmania and the CSIRO, the Centre will be a mixed educational, research and operational facility, attached to Hobart College. That’s pretty cool and all, but what makes the Centre so exciting and the reason for our tour is that the construction is a showcase of sustainable design in action.
The architects (morrison & breytenbach) are aiming for a 6-star Green Star rating from the Green Building Council of Australia, which would place the building in the “world leadership” category for environmentally sustainable design. To get this certification the building uses a range of clever designs and materials. Being able to get a look at the construction process to see how it’s done was fascinating!
Here are a few of the design aspects and construction techniques they’re using for the project:
- Recycled building materials – all steel including the roofing, major structural timbers, bricks, crushed glass (as fill, aggregate and in concrete) and some insulation. Even the office desks will be made with recycled floorboards!
- Passive solar design – floor-to-ceiling north-facing windows (double-glazed) with Trombe walls and other convective and radiative heat transfer structures, coupled with clever insulation (ceiling, under-floor, window frames, etc.) and venting systems to allow good thermal control (openable windows – how sadly novel in a modern building).
- Alternative energy infrastructure – solar photo-voltaic cells, solar evacuated tubing water heating, underfloor water-based heating (powered by used cooking oil) and maximised sunlight.
- Alternative building materials & techniques – clinka for insulating aggregate and ‘concrete’, PVC-free materials (polyethylene plumbing and e-cables), using screws and nails in place of adhesives, minimal steel and concrete use (mostly recycled)
- Water saving – rainwater, greywater and blackwater capture, treatment and re-use, including water-garden filtering and small-scale drinking water treatment.
Sadly I forgot to grab my camera (first thing Friday morning is not my sharpest time) so I don’t have any photos to share. More disappointingly, there isn’t a web site for the project, so at present there’s no way yet to share all the great information and resources from the project with the wider public. Greening Australia are planning to put a site together soon though, and students at Hobart College have been able to study the design and construction as it progresses: a great hands-on way to build interest in and understanding of sustainable design.
I really hope this project gets some more promotion and the partners involved work to get information out about the techniques and materials used and the resources available for those of us interested in applying sustainable design principles to our own homes and projects. The people I spoke to seemed surprised that I thought it so important as “the information’s all out there”. Yes, there’s a lot of information out there, but without serious research or expertise it’s impossible to know what will and won’t work in a specific city or climate, or what is suitable and efficient to apply at domestic scales. It’s also hard to find information on what’s actually available in terms of resources, materials skills and knowledge in your local area, and to build those networks between designers, suppliers, builders and ourselves.
Hopefully Greening Australia Tasmania will get a suitable website going soon and we can all share in what’s been learnt through this project; meanwhile I’m happy to be sharing the many things I learnt last Friday. Most of all I’m very pleased to know that we have the knowledge, skills and determination to get a project like this happening in Hobart: little city on an island at the bottom of the world, far away from the environmental leading lights of Europe. If we can do it, with our small population, apparent skills shortage, shitty economy and the tyranny of distance, then most anywhere can. The key ingredient is finding the people with the drive and leadership to steer the idea to reality.
We need more people who believe that projects like this can be done, and finding that they exist might just have been the most exciting part of my little tour.
Have you thought about building ‘green’? Please share your projects, inspirations, experiences and resources!
Hello. It’s been a little quiet around here, and it’s going to stay so for a little while longer. Life is busy: big plans are afoot.
Last week I found myself a new home: a tiny cottage tucked away in the inner-Hobart suburb on Lenah Valley, neglected gem among ageing flats and renovated grandeur.
The cottage is old, though a thoughtful make-over about 15 years ago has made it comfortable. It’s small, basic, and is going to be a great exercise is living simply, as there’s no other way to make the place work. Aside from a few kitchen cupboards there’s no built-in storage and little room for furniture. There’s a cosy lounge, a workable but modest kitchen, an enclosed porch that’ll be my dining room (under lovely north-facing windows), a crowded bathroom-cum-laundry, a big-enough bedroom, and a teensy “second bedroom” that will just fit my desk and become the study.
I succeeded in getting my northerly aspect and efficient-to-heat spaces but didn’t do so well on insulation. The enclosed porch cannot be insulated and I’m pretty sure the main part of the cottage isn’t either. The floor has been tiled too, which may be a little chilly on winter mornings! Despite this, I don’t think I’m going to be too cold, for the lounge room houses a wood heater, built into the old fireplace. With a fire going the cottage will be toasty warm.
I was a little hesitant about taking a place with a wood heater, I must admit. It is more work and expense, buying and preparing firewood and collecting kindling, and the fire will need some time to get going before the cottage heats up. On top of that, burning wood for heat really isn’t the most environmentally-sound option when your power supply is hydro-electric. Of course hydro’s not a perfect option, but it’s a damn sight better than coal and green enough to make me think twice about lighting the fire.
In the end, the cottage ticked so many other boxes that I decided I could cope with the wood heater. The location is perfect: walking distance to shops and friends houses, a nice cycle to the office and my favourite coffee haunt, on a major bus route and in a surprisingly quiet little cul-de-sac off a main road. Although the kitchen window faces south, the rest of the cottage opens to the east and the north, making the most of the winter sun. Best of all though; it comes with a surprisingly large garden, ripe with potential!
It’s going to take some hard work to realise that potential, but I’m already dreaming about potato patches, beds of leeks, reams of beans and peas and a raft of sunflowers. The yard is fenced, so perhaps I could convince the landlords to let me have a couple of chickens to help keep the bugs down and give me fresh eggs. Oh, my mind is so full of ideas my hands itch to put into action!
I get the keys next week, on Friday the 13th (What better date to start a new adventure?), but there’s much to do between now and then. I’m sorting through and culling my possessions, reducing the amount of stuff I have to manage the lack of storage. The things I don’t need are being sorted into lots to sell, store, throw or give away, with attempts made to re-home as much as possible (I hate throwing out useful things!). I’m tidying the gardens here in preparation for leaving, digging up plants I plan to take with me and collecting seed. I’m refusing to shop, using up the food in my cupboards and cooking up all sorts of unusual but tasty things. Then there’s the inevitable paperwork associated with moving… Oh, and I’m broke. Paying bond plus double rent for a month will do that.
It’s Easter this weekend and the associated days off would be perfect for getting started on packing, but I won’t be here. Instead I’m travelling up to the sunny southern Gold Coast to spend time with family I haven’t seen in over a year. A trip booked in January, long before I’d thought about moving, to soothe the sting of not going home for Christmas. Yep, life is busy.
Wish me luck!