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Birtley CB90 Cavity Wall Lintel 2400mm

URN: 5003289
£131.72ex. VAT
£131.72ex. VAT
Birtley CB90 Cavity Wall Lintel 2400mm is a standard-duty lintel with expanded polystyrene insulation, designed to minimise thermal bridging.

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Product Overview

Birtley CB90 Cavity Wall Lintel 2400mm is a standard-duty lintel with expanded polystyrene insulation, designed to minimise thermal bridging.

URN: 5003289
£131.72ex. VAT

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This charge is based on delivery to mainland UK excluding the following postcodes: AB, DD, KW, IV, LD, LL, PH, SA and SY. If your delivery address is in any of these postcode areas a member of our customer service team will contact you prior to processing your order should an additional delivery charge apply. We do not offer deliveries outside the UK mainland.

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* Deliveries of Doors and Panels to Scotland may incur additional costs and may have an extended delivery time of an additional 3 working days. Delivery to the postcodes below will be charged an additional delivery fee. Our customer service team will reach out to you if you order requires an additional delivery charge. This will be calculated based on the difference between the standard cost charged and the total cost outlined below:

Postcodes: KA1-29, IV1-39, AB, PH1-41, DD, PA1-19, KY, FK, FK15-21 - £90 ex VAT (total delivery cost)
Postcodes: KW 1-14 - £120 ex VAT (total delivery cost)
Highlands and Islands: £280 ex VAT (total delivery cost)

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Key Features

  • {{home_filled}} Designed for cavity walls ranging from 90mm to 105mm in width
  • {{device_thermostat}} Expanded polystyrene insulation reduces thermal bridging
  • {{fitness_center}} Supergalv hot-dip galvanisation 
  • {{more_vert}} Integrated plaster key ensures better plaster adhesion 

Technical Specification

Technical Specification
Material Type:Galvanised Steel
Cavity Width:90 - 105mm
Length:2400mm
Height:175mm
Sales Unit:Each
Weight:21.88kg
Colour:Silver

What is the Birtley CB90 Cavity Wall Lintel 2400mm?

Birtley CB90 Cavity Wall Lintel 2400mm is a standard-duty structural component designed for cavity walls ranging from 90mm to 105mm in width. It provides horizontal load-bearing support in wall openings such as windows and doors, efficiently transferring structural loads to adjacent vertical supports.

Enhanced with Supergalv hot-dip galvanisation, the lintel boasts a robust 65µm zinc coating, which offers 50% greater corrosion resistance compared to standard coatings, meeting the stringent requirements of BS EN ISO 1461:2009. This feature ensures exceptional durability and reduced maintenance, particularly in moisture-prone or corrosive environments.

Additionally, the integration of expanded polystyrene insulation improves the thermal performance of cavity walls, reducing heat transfer and achieving a remarkable 55% reduction in thermal bridging relative to SAP default values. SAP, or the Standard Assessment Procedure, is a government-endorsed methodology in the UK used to assess the energy performance of residential buildings by calculating heat losses, energy efficiency, and carbon emissions. By significantly surpassing these baseline values, the lintel contributes to superior energy efficiency and sustainability in modern building designs. 

Birtley CB90 Cavity Wall Lintel's baseplate-free design further enhances adaptability and load distribution, while the integrated plaster key on the inner leaf simplifies finishing processes by improving plaster adherence, making it a versatile and efficient solution for residential construction.


Where is the Birtley CB90 Cavity Wall Lintel 2400mm Used?

  • Residential, commercial, and industrial construction projects where cavity wall structures are utilised.
  • Architectural designs that incorporate openings, such as windows and doorways. 
  • Energy-conscious building projects, where thermal efficiency and reduced thermal bridging are critical.


Please Note: This lintel is unsuitable for point loads and incompatible with concrete floors. 


Birtley CB90 Cavity Wall Lintel 2400mm Benefits

  • Structural Flexibility: Baseplate-free design improves adaptability and load distribution.
  • Durability: Constructed from structural-grade steel (S275JR) compliant with BS EN10025-2:2004.
  • Superior Corrosion Resistance: Supergalv hot-dip galvanisation provides a 65µm zinc coating, offering 50% more protection than conventional coatings.
  • Thermal Efficiency: Includes expanded polystyrene insulation, reducing thermal bridging by 55% compared to SAP default values.
  • Energy Performance: Enhances sustainability and overall building energy efficiency.
  • Ease of Finishing: Integrated plaster key ensures better plaster adhesion and simplified finishing.
  • Standards Compliance: Meets stringent BS EN and ISO standards for quality, durability, and safety.


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