Keystone Brick Slip Feature Lintel - Standard/ Heavy/ Extra Heavy/ Extreme

All Keystone standard lintels satisfy the thermal performance requirements of Approved Document L of the Building Regulations (E & W), Northern Ireland’s Technical Booklet F and Scotland’s Technical Handbook, section 6. The Keystone patented Thermal Break Plate reduces thermal bridging while adding extra rigidity. Keystone lintels are insulated with expanded CFC-free profiled polystyrene insulation conforming to BS EN 13163. Provide a damp proof course / cavity tray over all lintels. Patented high performance brick bonding system incorporating a BBA approved masonry adhesive. Complex architectural features designed and manufactured off site ensuring seamless integration within the buildings façade. Brick consignment from construction site ensuring shape, size, colour and texture consistency.

For more detailed information applicable to a particular wall construction, contact Keystone Lintels Technical Department. Refer to manufacturers literature for details regarding lintel ranges, height, thickness and Uniformly Distributed Load (UDL) figures.

Performance:

Fire:

• Keystone lintels have been subjected to a fire test (Report No. 389158 Issue 3) in accordance with BS EN 1363-1 at Exova Warrington Fire and achieved a two hour fire performance.

Corrosion:

• Keystone’s standard range of lintels are manufactured from high quality grade pre-galvanized mild steel to BS EN 10346 DX51D with a zinc coating of 600 g/m² (including both sides) conforming to BS EN 845-2. 
• The use of austenitic stainless steel is ideal when the life expectancy and maintenance programme of a building are key considerations. 
• Material / coating specification in buildings exceeding three storeys in a non-aggressive environment should be limited to austenitic stainless steel (chrome nickel alloys). 
• Material / coating specification for buildings in an aggressive environment (e.g. coastal sites) should be limited to austenitic stainless steel (molybdenum chrome nickel alloys). 

Structural:

• The Keystone lintel range has safe working loads as detailed in each applicable loading table in the Keystone Steel Lintel Manual.
• The structural performance figures within each table have been ascertained by testing in accordance with the requirements of standards BS EN 5977-2, BS EN 846-9 and BS EN 845-2.

Certification:

• BBA Agrement certificate 98/3493 & 15/5250 including regular assessment of production.
• UKCA Assessment of performance, System 3.
• CE Assessment of performance, System 3.
• EN 1090-2 Execution Class 2, Declaration method 1,2,3a & 3b, Certificate 14/F106 & 14/F107.
• ISO 9001 Quality Management Systems, Certificate 18/Q059.
• ISO 14001 Environmental Management Systems, Certificate 18/E019.

Special lintels:

Keystone lintels can be supplied to suit a wide range of wall types, loading scenarios and bespoke custom made specials:

• Arch lintels,
• Bay lintels (square or splayed),
• Corner lintels,
• Bow lintels,
• Sunlounge lintels.

Contact Keystone Lintels Technical Department for further information.

Stainless steel:

• All Keystone’s range of lintels can be manufactured from austenitic stainless steel, grade 304 2b BS EN 10088-Part 2 Astm 240 (European Grade 1.4307). Upon request, other grades of stainless steel lintels are available conforming to BS EN 845-2.

Additional features:

• Free scheduling and specification service.
• Keystone Steel lintels have a service life commensurate with that of the building in which they are installed.
• Keying options to suit required plastering applications.
• Customizable.
• Load bearing lintel.
• Feature plate.
• Cant brick.
• Stepped.
• Powder coating.
• Soffit cladding.
• Brick slip cladding.
• Centre stone feature.
• Brick slip return soffit.
• Roller shutter.
• Weep holes.
• Stop ends.
• Bespoke.

Contact Keystone Lintels Technical Department for further information.