The Build - Ground Floor
The straw bale walls needed to be lifted high enough off the ground that rain wouldn't splash back onto the base of the bottom course of bales.
I used more packed tyres, reclaimed concrete blocks and paving slabs and slate off-cuts left over from when my neighbours had their garage re-roofed to get the heights right for each pier, leaving enough room for a ventilation space between the ground and the underneath of the floor.
The ground floor is made of a solid glue-laminated ring beam sitting directly on top of the piers with lightweight engineered joists spanning from front to back. The space between the joists was completely filled with insulation and then floored with standard chipboard flooring.
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