A comment
Expanded clay is an excellent building material for masonry walls, I write based on my personal experience. A year ago, he built a country cottage 7x8 meters in two floors. Overlappings are made by plates.
I decided to make the walls of the following type: expanded clay concrete block (40cm), extruded polystyrene foam (10cm), then the ventilation gap (5cm), and for greater aesthetics and insulation, I covered it with a facing brick.
Now I’m not overjoyed, in the winter it’s comfortable and warm at home, in the summer it is pleasantly cool, the air in the house is always fresh. True, do not forget that large heat losses come not only from the walls, but also from the floor and ceiling, so pay special attention to their insulation.
It took about 50 m³ of expanded clay concrete blocks to the house, by the way, initially the material consumption was calculated using a special expanded clay concrete blocks consumption calculator at one of the sites, which is very convenient and fast.
Yes, and also, in parallel with me, a similar summer house was built by my friend, but out of polystyrene concrete blocks, so even when unloading a third of all the blocks cracked. The conclusions are yours.
pros
thermal insulation, cost, ease of processing
Minuses
until I found special minuses