The Catnic Angle lintel system is designed for thin joint wall construction, accommodating all cav...The Catnic Angle lintel system is designed for thin joint wall construction, accommodating all cavity widths and reducing thermal bridging at window heads. It's suitable for external cavity, internal partition, and party wall construction. The ANG lintels feature duplex corrosion protection and are designed for standard duty loading applications, requiring propping and lateral restraint during construction. Standard lengths are available in increments of 150mm up to 3000mm, and in 300mm increments for lengths between 3000mm and 3900mm. This specific lintel is for angled single leaf external masonry walls, supporting spans between 900mm and 3900mm, and is compatible with 100–102mm brickwork. Lintels up to 2400mm are galvanised, while longer lengths are black powder-coated for enhanced weather protection. The steel is corrosion-resistant and complies with BS EN 845-2 standards. A 3000mm length weighs approximately 21,810g and is rated for loads up to 15kN with 150mm end bearings. Key features include integral corrosion protection and manufacturer certification.
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Product Information
Full details
This guide is for builders and construction professionals utilizing thin joint wall construction who need a reliable, thermally efficient lintel solution. The Catnic Angle Lintel provides robust support for openings in external solid walls, reducing thermal bridging and simplifying installation. However, users must ensure appropriate propping and lateral restraint during the construction phase for optimal performance and safety.
All features
Model Part Number
ANG1500
Brand
Catnic
Extended Product Information
FAQs
What is 'thin joint wall construction'?
Thin joint wall construction is a modern masonry technique that uses thin layers of mortar (typically 2-3mm) instead of traditional thick mortar beds. It often utilizes specially designed blocks and reduces drying times, improving thermal performance and construction speed.
Can this lintel be used with different wall thicknesses?
Yes, the Catnic Angle Lintel system is designed to accommodate the requirements of all possible cavity widths, providing versatility for various wall thicknesses and designs.
What does 'thermal bridging' mean and how does this lintel help?
Thermal bridging occurs when heat can escape or enter a building more easily through certain materials or construction elements, like lintels. This lintel is designed to help reduce thermal bridging at window heads, contributing to better insulation and energy efficiency.
What is 'Duplex Corrosion Protection'?
Duplex Corrosion Protection refers to a dual-layer protective coating system. This typically involves galvanization combined with a powder coating or paint finish, providing superior resistance against rust and corrosion compared to single-layer protection.
Is propping necessary during installation?
Yes, it is crucial. The lintel must be suitably propped and laterally restrained during construction until the mortar has fully cured and the masonry above has gained sufficient strength to be self-supporting. Failure to do so can lead to instability and compromise structural integrity.
How do I choose the correct lintel length?
Measure the width of the opening accurately. You then need to add a minimum of 150mm bearing to each side. So, for an opening of length 'X', the lintel length should be at least 'X + 300mm'. Select the closest standard length available from the manufacturer.
Can this lintel be used for internal walls?
Yes, the product description states that thin joint can be used on both external cavity and internal partition walls, as well as party wall construction, implying this lintel is suitable for internal applications within thin joint systems.
Troubleshooting
Lintel appears unstable or sags during construction.
This is typically due to insufficient propping or lateral restraint. Ensure the lintel is adequately propped along its length and laterally restrained according to manufacturer specifications until the masonry above has fully cured and is self-supporting.
Concern about long-term corrosion.
The lintel is equipped with Duplex Corrosion Protection for enhanced durability. As long as the protective coating remains intact and undamaged after installation, specific ongoing anti-corrosion care is generally not required under normal conditions. Inspect for damage prior to installation.
Lintel does not fit the opening correctly.
Lintels are available in standard incremental lengths. Always measure the opening accurately before ordering. Ensure the lintel selected allows for a minimum of 150mm bearing at each end of the opening.
Unsure if the lintel is suitable for a specific load.
This lintel is designed for standard duty loading applications. For heavier or specific structural loads, consult with a structural engineer to determine if this lintel is appropriate or if an alternative heavy-duty solution is required.
Pros and Cons
Pros
Optimized for modern thin joint construction methods.
Versatile application across various cavity widths.
Enhances building energy efficiency by reducing thermal bridging.
Provides superior long-term durability due to Duplex Corrosion Protection.
Simplifies specification with standard duty loading.
Range of standard lengths facilitates easier planning and installation.
Cons
Requires temporary propping and lateral restraint during construction.
Limited to standard duty loading applications; not for heavy-duty structural requirements.
Length options are in fixed increments, requiring accurate measurement.
Setup1. Preparation: Ensure the opening is correctly sized for the selected 1500mm lintel. The lintel should have a minimum bearing of 150mm at each end on sound masonry.2. Placement: Position the lintel accurately above the opening.3. Propping and Restraint: Crucially, the lintel *must* be suitably propped along its length and laterally restrained during the construction process. This support should remain in place until the mortar has fully cured and the wall above has reached sufficient strength to be self-supporting. Follow manufacturer guidelines for propping distances and durations.4. Masonry Laying: Begin laying masonry over the lintel, ensuring full mortar beds and proper coursing.### CompatibilityThis Catnic Angle Lintel is specifically designed for:- Thin Joint Wall Construction: Ideal for modern construction methods utilizing thin joint mortar systems.- External Solid Walls: Suitable for supporting masonry above openings in external solid walls.- Single Leaf Walls: Designed for single leaf wall configurations.- Cavity Widths: Accommodates all possible cavity widths, offering broad applicability.### CareDue to its Duplex Corrosion Protection, the Catnic Angle Lintel requires minimal ongoing care after installation. During transportation, storage, and installation, protect the lintel from excessive damage to the protective coating. Any significant scratches or damage to the coating should be addressed before final installation to maintain its corrosion resistance. Regular inspection during building maintenance is recommended to ensure its long-term integrity.
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