For as long as I can remember I have been designing houses I would like to live in. At the Centre for Alternative Technology I came across a couple of ideas I really liked.
The first is using photovoltaic cells to form the roof of a cloister or corridor. On a bright summer's day it is rather like being under the dappled shade of a large tree. There's still significant amounts of light, and there's also shade too. Being photovoltaic, the roof also supplies electricity too. I had initially thought of it as being a way of creating a covered 'outdoor' space with good natural light, but this image from the University of Southampton has made me consider whether it would be possible to do this on the whole of the south-facing roof space. The big question would be whether it would be suitable in the winter.
A conservatory is a must. It provides additional living space in the summer, and in the winter it is an excellent thermal barrier, keeping the house itself a little bit warmer.
Cordwood construction struck me as a very low-tech way to build, whilst at the same time having visual interest and appeal. I'd love to try this for a garage or outbuilding. I'd prefer my house to be a bit sleeker, with clean lines.
In cordwood construction the "cordwood" or short pieces of debarked tree are laid on a bed of lime or cob mortar. The whole wall can be made this way, or an infill of a thermally insulating material can be used. The eaves of the building extend 30-40cms beyond the walls to throw off as much rain water as possible.
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