Henry VP160 is a self-adhered vapor permeable, water resistive air barrier membrane consisting of an engineered film and a patented, permeable adhesive technology with split-back poly-release film. Blueskin® VP160 is fully adhered to the wall substrates in a weatherboard method without mechanical attachment. Questions? Contact us
Designed for commercial construction applications, Blueskin VP 160 creates a water resistive air barrier when applied outside of the wall sheathing and behind the exterior wall cladding. Used for transitions, rough openings, fenestrations, and full-wall applications.
Blueskin® VP160 complies with NFPA 285 standard fire test method in various wall assemblies. For further details, refer to Henry® Tech-Talk Bulletin “NFPA 285 Assemblies.”
Surface Prep: All surfaces to receive Blueskin® VP160 must be dry and clean of oil, dust, frost, bulk water and other contaminates that would limit adhesion of membrane. Acceptable substrates are exterior-grade gypsum sheathing, plywood, OSB, precast or cast-in-place concrete, concrete block, steel, aluminum and galvanized metal. Strike masonry joints full-flush. Concrete surfaces must be smooth and without large voids, spalled areas or sharp protrusions. Concrete must be cured a minimum of 14 days. Curing compounds and release agents used in concrete construction must be resin based without oil or wax.
If appropriate adhesion is not obtained due to conditions beyond the control of the installer, the application of adhesive-primer will be required. Approved adhesive-primers include Blueskin® Adhesive, Blueskin® LVC Adhesive or AquatacTM Primer. In addition, Blueskin® Spray Prep Primer can be used with light coats that are allowed to dry fully prior to covering. Availability may vary by region. Coated surfaces not covered by air barrier during the working day must be recoated.
Apply: Henry VP160 must be installed in a consecutive weatherboard method starting at bottom or base of wall and working up providing minimum of 2” (5 cm) overlaps. Position Blueskin VP160 for alignment with release paper in place; roll back, peel away split-back film and apply pressure to assure adhesion. Surface must be rolled after application with a countertop or J-roller with adequate pressure to ensure adhesion to substrate and laps and to remove fish-mouths and wrinkles. Seal membrane terminations, heads of mechanical fasteners, masonry tie fasteners, around penetrations, duct work, electrical and other apparatus extending through the Blueskin® VP160 around the perimeter edge of membrane, and terminations at window and door frames with 212 All Purpose Crystal Clear Sealant. Apply 212 All Purpose Crystal Clear Sealant in a 1/4” (6mm) bead and tool to thickness of approximately 40 mils (1mm) prior to sealant skinning over. Note: excessive or heavy application of 212 All Purpose Crystal Clear Sealant may cause superficial wrinkling of Blueskin® VP160 in some situations.
Fenestrations must be flashed per window and door manufacturers’ recommendations, local building code requirements, ASTM 2112, and AAMA guidelines. Use pre-cut rolls of Blueskin® SA, Blueskin® WB or Blueskin® Butyl Flash for sill pan flashings per Henry® published window flashing guidelines. Air-Bloc® LF liquid-applied flashing can also be used around the entire rough opening.
Limitations: Henry VP160 is designed for exposure of up to 150 days, but is not designed for permanent exposure to ultra- violet light and should be covered as soon as practical after application. Excessive moisture in substrate or laps can inhibit adhesion or result in loss of adhesion prior to installation of cladding. Do not expose the backside of the substrate to moisture or rain. Protect exposed back-up walls against wet weather conditions during and after application of membrane, including wall openings and construction activity above completed air barrier installation.
For installations less than 40 °F (4 °C), an approved Henry® primer is required for all substrates