DynaFlex® CR
DynaFlex® CR is a premium elastomeric, modified bitumen flashing sheet incorporating a strong, flexible fiber glass/polyester/ composite mat in a blend of SBS (Styrene-Butadiene-Styrene) rubber and high-quality asphalt. The elastomeric, asphalticblend product has excellent weathering and elongation recovery properties. The elastomeric-based asphalt in the flashing has full recovery properties after 100% elongation and lends elasticity and flexibility to the product. The inorganic fiber glass reinforcement, in conjunction with the polyester, provides stability, toughness and flexibility to DynaFlex CR and resists moisture absorption. The reinforcement also provides high tensile strength and affords better resistance to the factors which affect flashing performance. The covering layer of a white, acrylic coating combined with ceramic-coated roofing granules provides durability along with superior resistance to damage from weather and foot traffic, as well as the benefits of a reflective, emissive surface.
DynaFlex CR is engineered for use as a premium base flashing with SBS modified bitumen and traditional built-up roofing membranes. DynaFlex CR is protected with factory-applied roofing granules and does not require any additional surfacing.
DynaFlex CR can be used on all traditional flashing details and membrane terminations. Its flexibility and conformability make it ideal for use on parapet walls, skylights, roof penetrations, drains, vents and roof edges.
DynaFlex CR should be installed with Type III or IV asphalt, at a temperature of 400°F (204°C) or at the EVT, whichever is higher, and mechanically fastened as prescribed in the installation specifications. DynaFlex CR may also be installed using JM MBR® Flashing Cement or JM MBR® Utility Cement.
Product Literature
