Cavity Wall - Wide Outer Leaf
Steel lintels for cavity widths from 50–165 mm.
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 L1 range has Ψ values ranging from 0.2–0.3 W/m·K, the exact figure depends upon the wall construction the lintel is built into.
The IG patented Thermal Break Plate reduces thermal bridging while adding extra rigidity. Profiled CFC-free insulation. For more detailed information applicable to a particular wall construction, contact IG’s technical team.
Performance:
- Fire:
IG lintels have been subjected to a fire test (WARRES No. 101263) in accordance with BS 476-20: 1987, 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 carbon steel with a zinc coating of 600 g/m² (including both sides).
- Structural:
The IG lintel range has safe working loads as detailed in each applicable loading table in the IG Lintel 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: 1983 and BS EN 845-2: 2003.
Material | Galvanized steel To BS EN 10346: 2009. DX51D plus Z600 or grade Z275 to BS 5977-2: 1983 (BS EN 845-2: 2003). Stainless steel Grade 1.4307 to BS EN 10088-2. Other grades available on request: contact manufacturer. |
Uniclass 2015 | |
CAWS | F30/755 Prefabricated steel lintels F30/85 Prefabricated steel lintels |
Product Reference | Cavity Wall - Wide Outer Leaf |
Type | As drawingAs schedule |
Material | Galvanized steelTo BS EN 10346: 2009. DX51D plus Z600 or grade Z275 to BS 5977-2: 1983 (BS EN 845-2: 2003). Stainless steelGrade 1.4307 to BS EN 10088-2. Other grades available on request: contact manufacturer. |
Length | As drawingAs schedule |
Standard product features | Inner leaf: 100 mm. Maximum overhang: 30 mm on outer leaf. |
Product Options | Type: All ranges are suitable for a variety of cavity widths; add the following suffix to selected product code (below):
Manufactured in 150 mm increments; for minimum/ maximum lengths, consult manufacturer. The following lintel ranges are available: - 125–150 mm wide outer leaf:
- 215 mm wide outer leaf: Standard loading – L1/S WOL 215. Technical characteristics: For Uniformly Distributed Load (UDL) figures, height and thickness of lintel ranges, consult manufacturers literature for details. Special lintels: All IG lintel profiles can be manufactured with the following special requirements:
Consult manufacturer for further details. |