Quote:
Originally Posted by freebeard
The book Paper Houses suggested a half-dozen waterproofing treatments from Copal varnish (6 months) to ferrocement (forever).
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When there were still a lot more improvised shacks around the current location of the Arena do Grêmio, many had some walls made out of cardboard. I don't know if any actual waterproofing was done, other than trying to keep them away from water by putting a piece of plastic in front of it.