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Roof for an adobe brick building

Posts: 1481
Location: Vancouver Island
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I saw this and had to share it. It shows a number of different elements. The roof itself is made from adobe bricks. Their method of water management is interesting.... oh and it is a live roof. This method of building a barrel vault is also new to me, complete with their method of drawing the arc and laying the bricks.

Posts: 3113
Location: Upstate NY, zone 5
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I've seen the vault building technique (angled brick courses) before, but not the layout technique. Unfortunately I didn't quite get it from the diagram and Spanish description. I thought they were going to do a catenary the direct way (inverted), but what I saw wasn't a catenary that I could tell.
Anyway, very interesting.
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This is a very impressive building technique.

Apart from wanting to see what the interior looks like,  I really appreciated the care and detailing of the vaulted roof with the angled adobe bricks.   It looked like the steps were:  first- adobe brick vault;  next- a layer of cob;  next- plastic waterproofing layers;  next- volcanic rocks;  finally- the living roof.   I especially liked the care taken with the drainage.

The only thing that seemed a bit odd was the use of  'pasto en barro liquido' , the broom-thatch-like material soaked in the mud mortar covering the arches.   He says he uses it to cover the edges of the plastic tarp.  I would probably just mortar over the edge.  He covers it with red tiles anyway.

Nonetheless, very cool.

I'm wondering how this would hold up in very wet climates like New York where I live.   I've seen adobe last for over a century in the Amazon region, but with metal roofing.
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