[Cob] roofs and rainwater

[Amanda Peck]

People on both lists are going to get this twice.

There have been a couple of threads here and there about roofs suitable for 
rainwater harvesting.  Most of the manufacturers say, "no"  one actually 
said that THEIR process was perfectly OK for drinking water, but before they 
got it--and did a baked-on enamel coating--the metal people might have used 
something nasty.

These guys claim that their liquid paint-on roof is OK for rainwater 
collection, although I'm not sure if they think that collected rainwater 
should be drunk.

Their web-site is a mess.  One of these years they may finish it.  They 
always have biggish ads in Fine Homebuilding.

http://www.conservationtechnology.com/

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