[Greenbuilding] fireproof light deck

[David Bergman]

Gennaro,

Add "eco material" to that description and it becomes an old quest of 
mine. Are you talking about something to sit directly on the "real" 
roof? About the best I could come up with when I last tackled the 
question was lightweight concrete roof pavers -- not all that eco 
though maybe there are some made with flyash.

In terms of wood, NYC used to accept Ipe, but I heard a rumor they 
stopped when the fire rating claims didn't prove out. And, of course, 
there was the rainforest sourcing issue.

I've looked for fire-rated recycled plastic lumber from time to time, 
but have not yet found any. (Tim V-K: any updates you've heard of?)

There is a group called Brooklyn Bridge Forest 
(http://www.brooklynbridgeforest.com/) that is trying to set up a 
sustainable source for greenheart for maintaining the Brooklyn 
Bridge. I'm not sure what kind of fire rating greenheart does or 
doesn't have. (According to one site I just googled, it carries a 
"high/medium" rating.)

David
David Bergman  RA   LEED AP
DAVID BERGMAN ARCHITECT / FIRE & WATER LIGHTING + FURNITURE
architecture . interiors . ecodesign . lighting . furniture
bergman at cyberg.com    www.cyberg.com
241 Eldridge Street #3R, New York, NY 10002
t 212 475 3106    f 212 677 7291
At 08:01 PM 4/3/2011, Gennaro Brooks-Church wrote:
>Hello,
>Can anyone suggest a lightweight non-combustible deck material for a 
>roof deck?
>In New York a brownstone has an average flat roof of 700sq.ft. The 
>law only allows 20% of it to be covered with combustible decking, 
>which isn't much of a deck. Yet the non-combustible decking is too 
>heavy for the old roofs.
>Suggestion?
>
>Gennaro Brooks-Church
>
>Cell: 1 347 244 3016 USA
><http://www.EcoBrooklyn.com>www.EcoBrooklyn.com
>22 2nd St; Brooklyn, NY 11231
>
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