Verified by manufacturer 3 months ago
BBA Agrément Certificate
Certificate type
BS EN 1090-1
Certificate type
ISO 9001 Quality Management
Certificate type
Cavity >50 mm | BBA | Part L & B Compliant | UKCA | CE | Galvanized & Stainless
All Keystone Non Combustible Cavity Tray 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 NCCTL satisfy fire safety requirements of Approved Document B of the Building Regulations within buildings over 11 m in height.
Reaction to fire classification = A1 (non combustible) in accordance with BS EN 13501-1 as defined in 96/603/EC. Meets the requirements of material/coating specification requirements within PD6697. The Keystone patented NCCTL prevents thermal bridging. Keystone's NCCTL conforms to the requirements of a cavity tray satisfying the NHBC & LABC technical guidance.
The NCCTL patented mechanically fixed stop ends are prepositioned within perpend joints to accommodate brickwork openings. The installation of the NCCTL requires no additional specialist skills. The ease of installation in the outer leaf combines the structural load bearing lintel with the advantages of a self-supporting cavity tray.
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:
Corrosion:
Structural:
Certification:
Galvanized steel:
Additional features:
Contact Keystone Lintels Technical Department for further information.
Color | Silver |
Finish | Metallic Galvanized |
Material | Steel Guidance for specification option:
Stainless steel Guidance for specification option:
|
Length | Manufacturer guidanceRefer to Keystone Steel Lintel Manual or contact Keystone Lintels Technical Department. |
Uniclass | |
CAWS | F30/755 Prefabricated steel lintels F30/85 Prefabricated steel lintels |
Standard | To BS EN 845-2.Guidance for specification option: UKCA and CE Marked to BS EN 845-2 Specification for ancillary components for masonry Part 2: Lintels. Manufacturer guidanceDeclaration of Performance certificates are available at: www.keystonelintels.com. |
Lintel type | Composite. |
Material finish and coating reference | Galvanized mild steel to BS EN ISO 1461 DX51D with a zinc coating of 710 g/m². Material Coating Ref L10.Austenitic stainless steel, grade 304 2b BS EN 10088-Part 2 Astm 240 (European Grade 1.4307). Material Coating Ref L3.Austenitic stainless steel, grade 316 2b BS EN 10088-Part 2 Astm 316/316L (European Grade 1.4404). Material Coating Ref L1. |
Sizes | As Lintels schedule. |
Characteristics | |
Resistance to fire | Has achieved a minimum period of 120 minutes in accordance with BS EN 1363-1. |
Thermal conductivity | Part L compliant. |
Duty | Standard duty. Heavy duty. Extra heavy duty. |
Accessories | Not required. Keying options to suit required plastering applications. Cavity closer. Cant brick. Powder coating. |
Recyclability | 100% Recyclable |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 65 % |