RC2 windows integrate several reinforcements to achieve the resistance class. These include:
Reinforced Profiles: Both the sash and the frame must use profiles capable of withstanding significant mechanical force. For PVC windows, this typically involves galvanized steel reinforcements with minimum thicknesses.
Security Hardware: Multipoint locking systems with mushroom-head security cams and matching striker plates are essential. Hinges are often reinforced and equipped with anti-lift protection.
RC2 Glazing: Windows must use laminated safety glass classified to at least P4A as per EN 356. This means two or more layers of glass with interlayers (typically PVB) to resist impact and delay penetration.
Secure Fixing and Installation: The window must be installed using mounting methods compliant with RC2 requirements, such as wall plugs and screws tested for tensile and shear strength. The building structure where the window is installed must also be capable of withstanding the same load requirements.
No Weak Points: Any ventilation systems, openers, or fittings must be tested and designed not to compromise the RC2 certification. Even the glazing bead system must prevent glass removal from the outside.
Secure installation using tested fixing methods.