[Cob] roofing

[Dognyard]

Thad Feetham wrote:
> 
> Wanted to get this question out there:
> 
>     Just have to ask.   What roofing material would be available to use as rainwater collection that would be safe to use for potable water?

http://www.rainharvesting.com.au/roof_surface.asp

This paper was done in 2003, so there may be more options beyond what
they are recommending:

http://www.cchrc.org/BMP%20RW%20catchment.pdf

And here's a bit more info:

http://www.leafbeater.com.au/usa/10steps.asp

It's quite easy to do a comprehensive internet search. Using Google or
Altavista, or whatever search engine you want to use, put in as many
terms as you can think of in the query, and use a plus sign in front of
each word. For keeping more than one word together in the search (such
as rainwater catchment), put the erm in quotation marks.

So your search query might look like this:

+"potable water" +roof +catchment +material +roofing

Karen in Alberta