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The Birtley Heavy Duty Cavity Lintel 90mm HD90 is designed to withstand even the toughest construction challenges. It is compatible with cavities between 90mm and 105mm in width with an outer leaf of 100mm and inner leaf of 100mm respectively. For maximum effectiveness, a solid, fully jointed blockwork infill to the inner leaf is a must. Birtley employs post-fabrication hot-dip galvanisation that offers 50% more zinc protection than other approved coatings. Supergalv coating extends the lintel's lifespan. Birtley standard 100mm heavy duty cavity lintel set new standards in energy efficiency by surpassing SAP default value by as much as 55% in thermal bridging.

Features:

• Zinc Protection: By post-fabrication hot-dip galvanising, Birtley HD90 lintels offer 50 % more zinc protection for longer lifespan.
• Extended Life Expectancy: Supergalv coating extends the lintel's lifespan by more than 20%, providing a long-term solution for construction needs.
• Thermal Efficiency: This 100mm heavy duty cavity lintel excels when it comes to thermal efficiency, with a near 55% higher SAP default value in thermal bridging for energy-efficient construction projects.
• Optimized Cavity Support: Created specifically to fit cavities ranging from 90 mm to 105 mm in depth, these construction supports feature precise measurements on both outer and inner leaves.
• Available in span lengths from 750mm to 4800mm.
• Made from structural grade steel to EN10025