Birtley Standard Duty Steel Cavity Wall Lintel - CB90HD is designed for cavity walls with a cavity width of 90-105mm and a 100mm inner and outer leaf. Manufactured by Birtley, this lintel offers excellent durability and protection with its hot-dip galvanizing process, providing superior corrosion resistance compared to other coatings. The lintel is suitable for standard to medium duty loading conditions and ensures optimal thermal performance. It is insulated with expanded polystyrene, contributing to a BREEAM rating of A+. Key Features : Cavity Width: 90-105mm, suitable for both inner and outer leaves of 100mm. Supergalv Coating: Provides superior life expectancy with up to 50% more zinc protection than other coatings. Post-Fabrication Galvanizing: Ensures all surfaces are protected, reducing the need for paint protection. Thermal Performance: Includes expanded polystyrene insulation for excellent thermal efficiency and reduced thermal bridging. Durable Material: Made from mild steel S275JR to BS EN10025-2:2004 for structural strength. Fire Rating: Provides 60 minutes of fire resistance when finished with two coats of plaster. Installation Requirements: Must be bedded fully on bricklaying mortar and requires the use of a cavity tray for external walls. Optional Extras: Ultragalv coating (150µm), Stainless Steel (1.4301), reduced length flange, render mesh, and more. Minimum End Bearing: 150mm. This lintel is ideal for cavity wall applications requiring both thermal efficiency and long-lasting durability.
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