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RE: Waterproofing for pools on top of Structures?

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Try to contact a swimming pool company that makes a liner for concrete
pools. I have seen pools with a very flexible liner of soft plastic placed
over a thin foam over the standard concrete of a pool. They are very
colorful and easy to clean but prone to algae as the coloring makes them
warm up. I have no idea what they cost or if squared corners are a problem
but I would feel very confident about leaks.
Bob Hanson, S.E.

-----Original Message-----
From: l_pack(--nospam--at)leavittengineers.com [mailto:l_pack(--nospam--at)leavittengineers.com]
Sent: Monday, May 14, 2001 9:52 AM
To: seaint(--nospam--at)seaint.org
Subject: Waterproofing for pools on top of Structures?


I've been working on a building that has a cooling tower basin on
the roof of the structure.  The basin will have a 3.5 ft depth of water
in it and we've got to seal the basin against leaks.  Have any of you
had any experience with this type of situation and be able to
recommend and product that would be able to seal the basin?

The basin walls and floor are reinforced concrete cast in place, and
have been calculated for a 'z' factor of about 75.  The floor of the
basin is also the roof of the structure and is 10" thick.

Thank you,
Lloyd Pack


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