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UNDERSEAL™ Underslab
Waterproofing Geomembrane
for Critical Projects
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Why
UNDERSEAL™ can
take unprecedented construction abuse |
One of the biggest problems with underslab vapor barriers is construction
abuse. Workers with tools, and sometimes even construction equipment goes over
the vapor barrier after installation, causing tears or punctures. A vapor barrier
with a hole in it is, of course, useless.
In recent years higher quality vapor barriers have become available which
are thicker, with greatly improved properties. These are a big improvement
to the specifier who is looking for resistance to construction abuse.
Polyguard's UNDERSEAL™ Underslab
Waterproofing Geomembrane product starts with
one of these improved vapor barriers. Ours is 20 mils in thickness, and has
greatly improved set of properties
compared to previously used vapor barriers, which were typically 6 mils in
thickness.
What gives UNDERSEAL™ Underslab
Waterproofing Geomembrane its
unprecedented resistance to construction abuse is what Polyguard has
added to the vapor barrier. We have added Polyguard's
highway underseal membrane. UNDERSEAL™ Underslab
Waterproofing Geomembrane is a composite
of the best vapor barrier material available (the bottom), a thick elastomeric
sealant (the middle),
and a high strength geotextile fabric (the top).
Polyguard's highway underseal guide specification has instructions
for "Traffic
over Polyguard". We state that Polyguard underseal "may
be opened to traffic prior to overlay for up to two weeks".
