Birtley CB90 Supergalv Cavity Wall Steel Lintel 3300 x 197 x 280mm

Birtley Cavity Wall Lintels CB90 3300 x 197 x 280mm (L x H x W) is suitable for most domestic and commercial developments and framed structures. The water barrier in the cavity wall is a thin membrane that keeps moisture away from the cavity. It helps in resisting the wind-driven rain. Insulation is provided by slowly moving air films and grip is used with a cavity tray for external walls. It comes with expanded polystyrene bream rating with an extensive range to suit every requirement.

• Manufactured from strutural grade steels: S275JR/S355JR to EN10025-2:2004
• Galvanized after fabrication to BS EN 1461:2009 for unrivalled corrosion resistance
• All external cavity wall lintels are insulated with expanded polystyrene to BS EN 13163 to reduce thermal bridging
• Plaster key to inner leaf
• Rainwater drip feature to outer leaf