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The typical method of dampproofing involves applying a layer of unmodified asphalt
that's only 10 mils thick when cured. (Historically, this material wasn't even
created to protect basements or even repel water. In fact, it's a type of primer to
prepare road surfaces for other materials.) Dampproofing degrades quickly underground,
becomes brittle and shatters at low temperatures. So even thicker applications would
yield little, if any, improvement.
This unmodified asphalt won't span foundation settling cracks, nor will it stop water
flow under hydrostatic pressure - which both occur naturally underground. As a result,
dampproofing only delays water penetration insted of providing a long-term preventive
shield against it.
For full detailed specifications, contact J.A. Williams, Inc. at (419) 822-4171 or
e-mail Customer Service or
to use our on-line form click here.
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