Below Grade Waterproofing Membrane
Our below grade waterproofing membrane is made in the USA from High-density polyethylene (HDPE). It is available in various sizes and thicknesses. The thicknesses range from 30 mil to 100 mil ( a mil is a 1,000th of an inch). Roll heights range from 10” to 60” with the lengths mainly being 100’ with a few rolls being 80’ in length.
Our HDPE is waterproof, UV resistant, and non-biodegradable. The plastic is also resistant to insect and rodent damage, will not rot/mildew and is commercial grade. Multiple rolls of HDPE can be connected using the double sided HDPE seam tape.
In the above Picture 2: The barrier was installed a few inches away from the foundation wall to allow for a an occasional visual inspection to ensure that water was not flowing around the barrier and pooling against the foundation wall.
This material is stocked in Kansas City and typically ships within one business day.
30 mil = 1/32”
40 mil = 3/64”
60 mil = 1/16”
80 mil = 5/64”
100 mil = 3/32”