[Cob] roofing

[Bill&Julie]

Hello,,, Thad,,,  Clay Tile roof is one choice,,,

Also Ferro-Cement is yet another,, properly made
cement tanks can hold water for drinking...
So a thin shell roof is do-able...

For more info,,   http://www.ferrocement.net/




----- Original Message ----- 
From: "Thad Feetham" <tffdesigns at yahoo.com>
To: <coblist at deatech.com>
Sent: Thursday, January 05, 2006 8:31 AM
Subject: [Cob] roofing


> 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?
Considering the abuse roofing material takes from the elements.  I would
think that most any asphalt material would leech into the water.  Galvanized
metal would certainly leech into the water.  Fiberglass would not last and
would eventually degrade and leech into the water.  Plastic jugs or buckets
cut to use for shingles are not UV stable and quickly become brittle and
fail.   Other than stainless steel or copper which are obviously too
expensive or glass; which would be fine in a greenhouse application, what
would work?
>
>   Just wondering.  Anyone?
>   Peace
>   Thad
>
>
>
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