John,

I've known the term, "positive drainage", as in make the water flow away
from the building.  I assume "negative drainage" would mean to make the
water flow toward the building...or do describe that situation.
"Waterproofing"?  Got me.  That's something people who deal in new
buildings believe in.  Sort of like "maintenance free".

-jc

John Leeke wrote:

> Could someone explain "negative and positive waterproofing."
>
> J
>
> --
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