to melanie and anthony re hot humid

Hope this is readable as had to blow up very feint sketches. I've posted this section and plan of Murcutt's Marika - Alderton House in hot humid zone because it shows the summer and winter breezes which are so important for our domus. He has faced the long section directly north south (both fully openable) and the NWand SE winds flow through the building on an angle

the tunnelhouse in these photos is being used to shelter a fibreglass catamaran currently being built. The square steel structure is the cradle holding the cat, not part of the tunnelhouse.

Here is the TUNNELHOUSE construction that I mentioned. It is a lightweight solarweave shading material over lightweight square section gal. steel hooped trusses - it made by Monbulk Rural and is primarily used in the agriculture industry as a shading device for plants. I suspect brainstorming this one will raise too many problems but maybe we can use some of rationale behind these "shade houses"