How long
will it last?
Inherently,
low-density polyethylene will last indefinitely when buried in the
ground.
What are
its limitations?
Temperature,
fire, long term exposure and solvents limit the effectiveness of low-density polyethylene. U.V. stabilizers are incorporated into all
products to increase resistance to long-term exposure.
What is
its comparative cost?
More
expensive than standard poly, but much less expensive that waterproofing
membranes.