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Frequently
Asked Questions about Geomembranes |
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How
cost effective is a geomembrane? |
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Can
a liner stand up to sunlight? |
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Will
roots or vegetation bother a liner? |
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What
does mil thickness mean? |
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What
does chemical resistance mean? |
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Can
a liner be placed on a slope? |
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What
determines panel size? |
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How
viable are the field joints? |
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How
cost effective is a geomembrane?
Geomembranes
outlast and outperform many traditional materials. Their relative
properties and availability make them exceptional alternatives when
natural materials are either insufficient or non-existant.
Consideration
of their use should include the overall reduction in maintenance
in factoring their cost-effectiveness.
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Review
Products |
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Can
a liner stand up to sunlight?
UV resistance
is product specific. PVC should have a covering of at least 12 inches
of clean fill, with this it will last for decades.
If
your needs dictate exposure to direct sunlight and environmental
weathering or if no fill material is avaiable, take a look at the
Hypalon, RPP,
EPDM, HDPE.
Each of these geomembrane products bring attributes to your project.
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Will
roots or vegetation bother a liner?
Liners resist root penetration. This
concern can be avoided by subgrade soils prepared to be free of
roots and organic material.
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Review subgrade preparation
and other installation notes  |
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What
does mil thickness mean?
While
geomembranes come in various mil thicknesses, it can be misleading
to assume that "thicker is always better" as thickness
does not directly correlate across products to puncture and abrasion
resistance.
Liner
thicknesses are determined by the project engineer based on project
site specific conditions. The presence of a geotextile also can
greatly affect properties (such as puncture resistance).
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What
does chemical resistance mean?
A liner
is tested to survive exposure to a large variety of chemicals, even
though the chemical could have some effects on the liner, without
causing the liner to fail.
If
you have a specific containment, please give us a call at 800-524-8672.
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Can
a liner be placed on a slope?
Slopes
should be no greater than 3:1 and require mechanically securing
a liner by means of an anchor trench around the perimeter.
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See a project using an anchor
trench  |
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Steeper
slopes or verticals require a mechanical attachment to a structure
(usually concrete). |
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See
a project using batten strips
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What
determines panel size?
Geomembranes that can be prefabricated at our facility can be up
to 25,000 sf in size as a 'single' panel (material has already been
welded or joined together). Size may be affected by the panel weight
that can be efficiently handled in the field. Pre-fabricating geomembranes
allows us to seam liner under exact conditions, reducing field seaming
requirements and costs.
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More about Fabrication
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Some
geomembranes are shipped directly from the manufacturer (and are not
pre-fabricated). These panels are 'laid out' in design form at our
facility and assembled on site. |
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More about Design  |
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How
viable are the field joints?
We perform destructive and non-destructive testing on all the seams
we perform in the field. Our crews are fully certified.
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Review field seaming and
other installation notes  |
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Disclaimer:
These answers are provided as general information only and are not
intended as a guarantee or warranty. Colorado Lining International
assumes no responsibilities in connection with the use of this information. |
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