LeakBarrier: ValleyFlash
LeakBarrier ValleyFlash is a unique and highly versatile glass fiber reinforced sheet sandwiched between two layers of a heavy coating of superior quality bituminous resins modified with synthetic resins. Due to its remarkable characteristics, ValleyFlash meets the physical requirements of the ASTM D-1970 Moisture Vapor Permeability Test.
Usage
LeakBarrier ValleyFlash is designed for use under composition shingles, shake applications, all types of tile, and metal roofing.
Features and Benefits
- Technologically advanced valley liner
- Self Sealing around nails
- Superior pliability of specially formulated SBS asphalt facilitates a wrinkle free flat laying sheet
- More cost-effective and easier to work with than metal
- Lays flat and resists wrinkling for ease of application
- Factory controlled characteristics
- Surpasses ATSM D-226 Type I & II standards
- Meets ASTM D-4869 Four Hour Shower Test standards
Storage
LeakBarrier ValleyFlash requires protection from damage and the weather. Constantly store rolls upright, in a dry location and never install when wet.
Application
- All roofing materials must be kept clean and free of moisture prior to installation.
- Deck must be clean, dry and free of voids.
Properties
| Property | Typical Value | Reference Test |
| Approx. Thickness | 55 Mils | ASTM D-5147 |
| Tensile Strength (lbf/in.) | MD=45, CD=45 | ASTM D-6163 Type 1 |
| Tear Strength | Pass | ASTM D-6163 Type 1 |
| Dimensional Stability | Pass | ASTM D-6163 Type 1 |
| PLIABILITY AT 77°F | Pass | ASTM D-4601 |
| Liquid Water Transmission Test | Pass | ASTM D-4869 |
| Moisture Vapor Permeability | 0.1 U.S. Perm or less | ASTM D-1970 |
Product Data
| 1SQ ROLL | |
| ROLL WIDTH | 36 Inches |
| ROLL LENGTH | 33.4 Ft. |
| COVERAGE PER ROLL | 100 Sq. Ft. |
| APPROXIMATE ROLL WEIGHT | 33 Lbs. |
| ROLLS PER PALLET | 49 |
Warranty
LeakBarrier ValleyFlash is warranted to be free from manufacturer’s defects.
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