Quick Overview 

BlockFlashing Banner No Window webBlockFlashing is a self-adhered, non-asphaltic, air, water, and vapor barrier flashing.Self-Adhered, Non-Asphaltic, Air, Water, and Vapor Barrier Flashing

  • Non-Asphaltic product
  • Impermeable to air, moisture vapor, and water
  • Use as a rough opening flashing or transition flashing
  • Aggressive pressure-sensitive adhesive 
  • No primer required 
  • 12 month UV and weather exposure 
  • AAMA 711-13 compliant 
  • Application temperature 0°F (-18°C) and rising 
  • Durable, tear resistant, and flexible at low temperatures
  • Zero VOCs
  • Multi-layer elastomeric film seals around nails and staples to prevent moisture intrusion.
  • Compatible with many building sealants: no adverse reaction with synthetic rubber, butyl, polyurethane, silicone and silane terminated hybrid sealants.

BlockFlashing Icons SidebySide 01

Three Convenient Sizes

 BlockFlashing Roll 6  BlockFlashing Roll 11  BlockFlashing Roll 14

BlockFlashing roll widths: 6 ½”, 11 ¾”,  14 ¾” (.17m, .3m, .37m)

Air, Water and Vapor Barrier Flashing System


blockflashing diagram web

PHYSICAL PROPERTIES

PROPERTY

RESULT

Color

White

Thickness

0.26 mm (10.2 mil)

Membrane Weight

289 g/m² (0.95 oz/yd²)

Primer

No Primer Required

VOCs

None

Field Exposure Before Permanent Cladding

12 months

Minimum Application Temperature

0°F (-18°C) - 180°F (82°C)

Service Temperature

minus 40°F (-40°C) - 200°F (93.3°C)

AAMA 711-13

Compliant

Warranty

20 years

 

TESTING DATA

PROPERTY

STANDARD

RESULT

Strength

Dry Tensile Strength

ASTM D882 Standard Test Method for Tensile Properties of Thin Plastic Sheeting

XMD - 3.85 N/mm (22 lbf/in)

Dry Breaking Force (Grab method) MD ≥40 XMD ≥35

ASTM D5034 Standard Test Method for Breaking Strength and Elongation of Textile Fabrics (Grab Test)

MD – 338 N (76 lbsf)

CD – 356 N (80 lbsf)

Cold Mandrel Bend Test

AC38 Section 3.3.4

PASS

Weathering Tests

AC38 Section 4.1.2 UV Exposure AC38 Section 4.1.3 Accelerated Aging

PASS

Minimum Puncture Resistance

ASTM E154 Standard Test Methods for Water Vapor Retarders Used in Contact with Earth Under Concrete Slabs, on Walls, or as Ground Cover

56 lbf (249 N)

Water Vapor Transmittance

Water Vapor Transmission Using Modulated Infrared Sensor

ASTM F1249 Standard Test Method for Water Vapor Transmission Rate Through Plastic Film and Sheeting Using a Modulated Infrared Sensor

0.0193 Perm (grain/h•ft2•inchHg) 1.10 ng/Pa•s•m2

Adhesion Testing

Adhesion after Water Immersion

AAMA 711

PASS

Water Resistance Testing

Water Resistance (Control after Weathering)

AATCC 127 Hydrostatic pressure test (550 mm water column for 5 hours), American Association of Textile Chemists and Colorists

PASS

Fire Testing

Flame Spread Smoke Developed

ASTM E84 Standard Test Method for Surface Burning Characteristics of Building Materials

Flame Spread 5 Smoke Developed 15

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