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Site Considerations: |
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Whenever possible, site selection should avoid areas where flooding or ground water pressure can occur. The lining "bottom" should be well above the water table. If the site selected is in an area where organics are in the soil, or if gases can be generated by chemical reaction, the design must allow for venting. |
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Surface Preparations: |
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Surfaces should be level and free of all sharp rocks (all rock and stone greater than .05 diameter), objects, vegetation and stubble. (Soil sterilization may be necessary to kill roots and certain types of grasses.) The subgrade surface should provide a unyielding foundation for the geomembrane with no sharp or abrupt changes or break in grade. Proper compaction assures stability and support of the liner. |
Field Seaming:
Fabricating panels at one of our climate controlled facilities into essentially larger panels dramatically reduces the amount of field seaming a project requires.
The lining material itself determines the types of field seaming techniques used.
The most commonly used process is heat fusion welding, which can be done with hot air or hot wedge.
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