High Performance
WRB/Air Barriers and
Roof Underlayments







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Product Offering

WallShield Mechanically Attached, Water Resistive, Vapor Permeable Membrane, is now ENHANCED with Integrated Tape

Tape releasepapers 1webaEasily create the necessary shingled effect with integrated tape that seals horizontal seams in all weather conditions.
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Eliminate water concerns at horizontal joints with WallShield IT Integrated Tape.


Superior Building Envelope Protection

  • Cutting-edge drying capacity (permeability, 142 perms) reduces risk of long-term damage from moisture infiltration, mold, mildew and rot
  • Install on wet sheathings allowing saturated substrates to dry-out
  • Resists bulk water infiltration

Horizontal Integrated Tape and Cost Effectiveness

  • Reduce installation time, lower material expenses and limit tape failures with integrated tape at the horizontal seams
  • Increase accuracy of required 6” shingled overlap, ensuring water tight joinery, by lining upper membrane to lower membrane with pre-marked lap template
  • Installs quickly and easily, mechanically attaching with VaproCaps to plywood, OSB and gypsum sheathing, rigid insulation, concrete block and pour-in-place concrete
  • Reduces contractor liability by using fully tested VaproShield system: single source membranes, flashings and sealants
  • Long-term durability with standard 20 year material warranty

Phase Construction Friendly

  • Install in all climates and weather conditions
  • No special installation equipment required, use common hand tools
  • Tear, rip and puncture resistant during and after construction, reducing repairs
  • Sustains six (6) months of UV and climate exposure

Environmental Sustainability

  • Contributes to LEED points in Indoor Environmental Quality and Energy & Atmosphere
  • Is 100% recyclable

Rough Opening Flashing
Fast and efficient rough opening flashing uses VaproShield accessories specifically designed and tested to work together, making field training and installation easy.

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Approvals and Testing

Tensile Strength ASTM D882

MD - 5.45 N/mm (31.1 lb/in)
XMD - 5.22 N/mm (29.8 lb/in)

Water Resistance AATCC 127

Control - No leakage
Weathered - No Leakage

Water Vapor Transmission

ASTM E398 as per ASTM E96*

(Water Method)

142.56 Perm (grain/h•ft2•inchHg)
8156 ng/Pa•s•m2
(23°C 50 %RH)
Low Temp Flexibility AC38, Section 3.3.4 PASS
Weathering AC38, Section 4.1 PASS

Fire Testing

Assembly Fire Test NFPA 285

Contact VaproShield
Technical Team
1-866-731-7663 opt.5

Flamespread Index ASTM E84 0 – Class A
Smoke Developed Index ASTM E84 65 – Class A

*ASTM E 96 - Method B (wet cup method) typically gives a more realistic result for permeance of highly permeable products than does the Method A (dry cup/desiccant method).