IG Cavity Wall Lintels - Wide Outer Leaf - Standard/ Heavy/ Extra Heavy/ Extreme

All IG 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 IG patented Thermal Break Plate reduces thermal bridging while adding extra rigidity. IG 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.

For more detailed information applicable to a particular wall construction, contact IG Lintels Technical Department. Refer to manufacturers literature for details regarding lintel ranges, height, thickness and uniformly distributed load (UDL) figures.

Performance:

Fire:

• IG lintels have been subjected to a fire test (WARRES No. 101263) in accordance with BS 476-20 and (Report No. 508704/R) in accordance with BS EN 1363-1 at Exova Warrington Fire and achieved a one hour fire performance.

Corrosion:

• IG’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 IG lintel range has safe working loads as detailed in each applicable loading table in the IG Lintels Product Guide brochure.
• 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 05/4192 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:

IG 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 IG Lintels Technical Department for further information.

Stainless steel:

• All IG’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.
• IG Steel lintels have a service life commensurate with that of the building in which they are installed.
• Keying options to suit required plastering applications.
• Feature plate.
• Cant brick. 
• Stepped.
• Powder coating.
• Soffit cladding.
• Brick slip cladding. 
• Universal arch.
• Roller shutter.
• Weep holes.
• Stop ends.
• Bespoke.

Contact IG Lintels Technical Department for further information.