Yet another variation, this time utilising solid timber framing. Around 130m2 of floor.
Again, uses a generous amount of foam glass aggregate (approximately 160m3) - for all round insulation, drainage and use as rubble trench foundations.
Timber frame to be shuttered and backfilled with either gravel or foam glass. The entire structure to be kept dry using a waterproof membrane and a "geosynthetic clay liner".
The "hogan" roof is designed using 200mm diameter round logs - timber frame beams are 200mm x 200mm.