[Greenbuilding] Tear resistant Crawl Space Vapor Barrier

[Irina Golfman]

Hello,

We are putting a vapor barrier in the crawl space and I am trying to find 
something that would be more resilient than the 8 mil poly. I am concerned 
that the standard 8 mil polyethylene will be compromised the first time I 
have to go down to change my water filter even if I try to create a "safe" 
path with boards. I've tried to search the books and the web but haven't 
found anything.

Any thoughts?

Thank you very much,
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rina