Additional
Information
Water Barriers and Flashings
Drainage Media for Master Wall Systems
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Rollershield Air/Water Barrier
Rollershield is a high quality 100% acrylic roll applied flexible air and water barrier. Easily applied with brush, roller or airless sprayer, it helps protect approved substrates from incidental water damage. Rollershield is available in five-gallon (19L) pails and is ready for use after pre-mixing.
Coverage
450-500 square feet (42-46 square meters)
*Coverages are estimated and vary
Weight: 60lbs (27kg)
Dry to Touch: 1 hour under normal room temperature and humidity.
Drying Time/Recoat Time: 2 hours under normal room temperature and humidity.
Application/Storage Temperatures: 45°F (7°C) to 110°F (43°C)
Shelf Life: 2 years under normal conditions.
Approved Substrates
- Exterior gypsum sheathing (ASTM C79, C1177, C1396)
- Dens Glass Gold®
- GlasRoc®
- FiberBond®
- Gold Bond e2xp®
- Durock®
- PermaBase®
- Concrete
- Brick
- Masonry
- Exterior Plywood
- Oriented Strand Board
- Others approved in writing
Application Procedure
Job Conditions - Air and substrate temperature for application of Rollershield must be 40°F (5°C) or higher and must remain 40°F (5°C) or higher for a minimum of 24 hours. Provide temporary protection to protect the wall system from damage until permanent flashings, caps and sealants are installed. Store materials within prescribed temperature limits and out of direct sunlight. Working and drying times are based upon normal room temperature conditions and will vary with temperature and humidity.
Preparation - The substrate must be approved by Master Wall Inc., clean, dry, structurally sound and free of efflorescence, oil, grease, form release agents and curing compounds or anything that would affect bond. Painted surfaces are not acceptable and must be removed. Substrates must be flat and free of fins or planar irregularities greater than 1/4 inch in 10 feet (6.35 mm in 3.05m).
Concrete -Must have cured a minimum of 28 days prior to the application of Rollershield. If form release agents or curing compounds exist on the surface, they must be removed with a solution of muriatic acid or similar product (with appropriate precautions). Remove any residual acid by flushing with water.
Brick/Masonry - If joints are not struck flush, multiple coats may be required. Contact Master Wall for more information.
Mixing - Thoroughly stir Rollershield into a homogenous consistency. Do not add water, over mix, or add accelerators or retarders to Rollershield.
Application - Rollershield is applied by first treating the joints and fastener locations where sheathing is used, then coating the entire surface using brush, roller, trowel or airless spray equipment techniques. When using a foam roller, a maximum ¾ inch (19 mm) nap is recommended. Apply Rollershield in an even, continuous coat, maintaining a wet edge of approximately 15 mils thickness. Oriented Strand Board and other porous substrates require two (2) coats of Rollershield. For moisture protection, Rollershield must be applied as a continuous barrier of 10 mils dry thickness with no breaks or skips, although some areas will appear lighter than others due to the application process. The Rollershield application need not look like a painted surface.
Joint Treatment - Place and center Rollershield Mesh over all joints, corners and gaps in the substrate. Immediately embed Rollershield into the reinforcing mesh and spot fasteners using a paint brush or trowel and allow to dry. Alternatively apply a thin layer of Rollershield to the joints and embed Rollershield Flashing Tape into the wet mixture and trowel smooth. Rollershield may be flashed into window, door and other openings using the same techniques. Any remaining gaps should be filled with Master Wall Trowelshield or Trowelshield and Mesh may be used as the joint treatment.
Wall Treatment -Apply Rollershield to the wall surface using the foam roller or by spray applying and backrolling to a uniform thickness of 10 mils with no pinholes or voids.
Clean Up -Tools and equipment can be cleaned with soapy water when Rollershield is wet.
Limitations - Not for use as an exterior finish.
Rollershield Properties
| ASTM C297 | Tensile Bond | |
| Dens Glass Gold | 31.6 psi | |
| Exterior Gypsum | 28.2 psi | |
| OSB | 40.4 psi | |
| Plywood | 79.1 psi | |
| Cement Board | 70.6 psi | |
| Copper | 185.1 psi | |
| Galvanized Steel | 180.8 psi | |
| Rigid PVC | 168.2 psi | |
| Aluminum | 184.2 psi | |
| Color Coated Aluminum | 203.5 psi | |
| Stainless Steel | 183.0 psi | |
| ICC-ES AC212 | Freeze Thaw | |
| Plywood | Pass | |
| Cement Board | Pass | |
| OSB | Pass | |
| Exterior Gypsum | Pass | |
| Dens Glass Gold | Pass | |
| ASTM D2247 | Water Resistance | |
| ICC-ES AC212 | Exterior Gypsum | Pass |
| Dens Glass Gold | Pass | |
| Cement Board | Pass | |
| Plywood | Pass | |
| OSB | Pass | |
| ASTM E96 | Water Vapor Transmission | 203 g/24 hr/m2 |
| 30.5 perms | ||
| ICC-ES AC212 | Full Scale Conditioning and Water Testing | Pass |
| ICC-ES AC212 | Weathering | 55 cm Head |
| Exterior Gypsum | Pass | |
| Dens Glass Gold | Pass | |
| Cement Board | Pass | |
| OSB | Pass | |
| Plywood | Pass | |
| ASTM E2273 | EIFS Drainage Performance | |
| ICC-ES AC212 | 99.2% Efficiency | |
| ASTM E2178 | Air Permeability | 0.0002 cfm/ft2 at 1.57 psf |
| ASTM E-84 | Combustibility | Flamespread-5 Smoke Developed-5 |
Information contained in this product data sheet conforms to the standard detail recommendations and specifications for the installation of Master Wall Inc. products and is presented in good faith. Master Wall Inc. assumes no liability, expressed or implied as to the architecture, engineering, or workmanship of any project. This information may be concurrent with, or superseded by other applicable documents, such as specifications and details. Contact Master Wall Inc. for the most current product information.