Summary of VB Series Membrane Specifications

250 gsm (11 mil) & 350 gsm (16 mil)

ASTM E 1745 – 96 Standard Test Methods, per ASTM E 154 – 93,

Water Vapor Retarders Used in Contact with Earth Under Concrete Slabs, on Walls or as Ground Cover

Test Type / ASTM Standard / ASTM Method VB350 16mil.
Test Results
VB250 11mil.
Test Results
Class A
Requirements
Class B / C
Requirements
Tensile Strength After Soaking
(MD & TD Average) / ASTM E 154 – 93 Section 9
63.0 Lbf / in 48.84 Lbf / in 45.0 Lbf / in 30.0 Lbf / in
Resistance to Puncture (grams)
ASTM E 154 – 93, Section 10
2226 grams 2408 grams 2200 grams 1700 / 475 grams
Resistance to Plastic Flow & Elevated Temperature(Perms) ASTM E 154 – 93, Section 11 .025 (Perms) .019 (Perms) .30 (Perms) .30/.30 (Perms)
Effect of Low Temperature on Bending (Perms)
ASTM E 154 – 93, Section 12
.011 (Perms) .015 (Perms) .30 (Perms) .30/.30 (Perms)
Resistance to Organisms & Substrates in Contact with soil (Perms) ASTM E 154 – 93, Section 13 .013 (Perms) .015 (Perms) .30 (Perms) .30/.30 (Perms)
Resistance to Petroleum and Soil Poison (Perms)
ASTM E 154 – 93, Section 14
.014 (Perms) .014 (Perms) .30 (Perms) .30/.30 (Perms)

NOTE: All data reported in perms provided by TRI Environmental, Austin, Texas.