Description
Rigid mineral wool (stone wool) cant with a lightly sanded bitumen surface.
Material Use:
SOPRAROCK CANTS is a rigid mineral wool (stone wool) cant strip designed for use in roofing systems. It is primarily used to create smooth 45° transitions between horizontal and vertical surfaces on roofs, enhancing membrane performance and durability at critical junctions. The product is composed of basalt rock and steel slag, giving it excellent fire-resistant properties and dimensional stability.
System Components:
SOPRAROCK CANTS is typically used in conjunction with SEBS hot bitumen or oxidized bitumen for installation. It can also be adhered using DUOTACK adhesives, making it compatible with a variety of roofing systems. While it is not a complete waterproofing or insulation system on its own, it functions as a critical accessory component in built-up roofing (BUR), modified bitumen, and other membrane-based roofing systems.
Applications:
This product is used around insulated curbs for rooftop mechanical units, skylights, roof-to-wall junctions, control and expansion joints, parapets, and other roof penetrations requiring a cant transition. It is suitable for commercial and industrial flat or low-slope roofing systems where membrane continuity and support at transitions are essential.
Application Details:
SOPRAROCK CANTS is installed in a bed of SEBS hot bitumen or oxidized bitumen applied with a mop, or it can be adhered using DUOTACK adhesives. The cant must be covered with a membrane by the end of the day to prevent exposure to weather, as it is not designed to be left uncovered. The product must be stored and handled in a dry environment and protected from the elements during transportation and installation.
Special Notes:
- SOPRAROCK CANTS must not be exposed to weather and should be covered with a membrane immediately after installation.
- The product meets ASTM C726 and FM 4470 standards for non-combustible core (NCC) rated roof insulation.
- It has a nominal density of 200 kg/m³ (12.5 lb/ft³), with excellent dimensional stability (0% linear shrinkage at -40°C) and low water absorption (<1%).
- Each unit measures 102 mm (4 in) wide at the surface, 38 mm (1.5 in) thick, and 25 mm (1 in) wide at the underface, with a length of 1219 mm (48 in). Each pack contains 29.3 linear meters (96 linear feet).
- Other dimensions are available upon request.
This product is a key accessory in roofing systems, ensuring proper membrane support and transition detailing, and should be used in accordance with SOPREMA’s installation guidelines and in combination with compatible adhesives and membranes.
https://www.soprema.ca/en/products-systems/soprarock-cants
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