Finestop VB
Finestop VB is a one-component fluid-applied, vertical above grade air/water-resistive barrier with built-in low temperature application properties that can also function as a Class I vapor retarder. This resilient waterproof membrane can be applied directly to approved, above-grade wall substrates by sprayer, roller or brush. It provides excellent secondary moisture protection behind most wall claddings including brick, siding, metal panels, EIFS and stucco.
** A slipsheet is required for stucco claddings
** Based on 2012 IBC definitions
| Advantages |
|---|
| Meets ASTM E2357 Air Leakage of Building Assemblies requirements specified by the ABAA and listed in ASHRAE 189.1 |
| Meets requirements of ICC-ES AC 148; can be used as a flexible flashing in rough openings or through-wall penetrations |
| Self sealing performance meets ASTM D1970 nail sealability requirements with and without Sheathing Fabric |
| Liquid-applied, continuously-bonded membrane; eliminates seams, lap joints and staples; transmits wind loads to the substrate |
| One component, easy to apply formulation that meets low VOC requirements in all 50 states |
| Nonflammable as applied |
| No primer required; single pass application on most substrates |
| Asphalt and plasticizer-free; easy cleanup, will not dry out or leach plasticizer after application |
| Allows for flexible construction scheduling with an 180 day outdoor exposure rating |
For use over the following exterior wall substrates: Poured concrete/unit masonry; ASTM C1177 type sheathings, including DensGlass™or DensElement exterior sheathing (sheathing only), eXP™ sheathing, GlasRoc® sheathing, Securock™ glass-mat sheathing, Weather Defense™ Platinum sheathing, GreenGlass® sheathing; cement-boards (ASTM C1325 Type A Exterior) including PermaBase™ cement-board; Untreated Exposure I or exterior plywood sheathing (grade C-D or better), Untreated Exposure I OSB, Zip Sheathing (sheathing only); FireTreated wood sheathing: Pyro-Guard® and Dricon® plywood and FlameBlock® OSB; gypsum sheathing (ASTM C79/ASTM C1396).
Do not use Finestop VB for below-grade applications or on surfaces subject to waterimmersion.
COVERAGE PER PAIL*
ASTM C1177 Type Sheathing: 290 ft2 (27 m2)
Cement Board: 290 ft2 (27 m2)
Plywood: 265 ft2 (24 m2)
Oriented Strand Board (OSB): 265 ft2 (24 m2)
Concrete Masonry Units (CMU): 80-150 ft2 (7-14 m2 varies with CMU porosity)
Poured Concrete: 290 ft2 (27 m2)
Embed Sheathing Fabric:
- SikaWall-75 Sheathing Fabric 4: 630 ft (192 m)
- SikaWall-75 Sheathing Fabric 6: 420 ft (128 m)
- SikaWall-75 Sheathing Fabric 9: 280 ft (85 m)
*Roll or spray / backroll for optimum coverage rate. Other application methods may provide less coverage. Actual results may vary depending onsurface porosity, roughness, moisture uptakes, or other factors.