Cob Living Roofs (Zer-Flor)

[EREC - Duncan, Cameron]

(Please pardon the cross-posting)
Hello all,
     I've been conversing with a gentleman in southern Indiana who has   
been asking for information on a living roof assembly about which he's   
read marketing material.
     A Frankfurt, Germany or Netherlands organization had an arrangement   
with Virginia Polytechnic to grow some of their living roof/sound   
abatement systems to see what planting combinations would work best for   
various North American climates. Reportedly, the European company/group   
offered three living roof systems commonly employed in Europe for sound   
attenuation near airports, highways, etc.
     (1) Zer-Flor moss-sedum -- the lowest growing mix
     (2) Zer-Flor moss-herbal roof -- slightly taller mix
     (3) Zer-Flor grass-herbal roof -- tallest mix
The assembly system of earth, drainage mediums, etc. was well thought-out   
and possibly part of the package.
     Of the two telephone numbers (no addresses) available, neither was a   
working number. He snooped around the Virginia Tech. architecture   
department, he says, without success--didn't try the horticultural   
department.
     Has anyone any information I could use to find out more about this?   
Other living roof approaches? Any architectural or horticultural groups I   
may contact that might know? (I checked the straw bale archives already)

Thank you.

Cameron Duncan
EREC Architect, Technical Specialist
CDUNCAN at nciinc.com
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