A special bottom closure material uniquely woven using high density polyethylene (HDPE)
that is then coated with a continuous layer of low density PE.
tested for durability and weather-ability, as well as chemically tested to ensure maximum performance. After seven years of continuous, direct exposure to the elements in Arizona, the material retained more than 70% of its strength.
What this creates is a material that is uniform in quality, with no weak spots, that is completely impervious to water and also meets the requirements for use as a vapor barrier. It’s Beach puncture test resistance is more than five times the requirements as established by HUD! Staple hold out is excellent. Penetrations and cuts will not spread and can be easily patched using our FLEX-MEND® tape.