Tony Wrench has pioneered low impact roundhouse building with reciprocal frame roofs and cordwood walls. The windows and doors and other fittings are usually 'repurposed'. Here is a short film showing how Tony and friends built a roundhouse den at a course in May 2008.
Tony is the author of Building a Low Impact Roundhouse which is available from us on special offer (p&p free in the UK).
Reciprocal Frame video with Tony Wrench
Undercurrents and Tony Wrench have now released a more informative video on Reciprocal Frame building
Watch it on
http://livinginthefuture.org/index.php/43