Verified by manufacturer 2 months ago
NCCT-50
BBA Agrément Certificate
Certificate type
Keyfix's A1 fire rated Non-combustible Cavity Tray System provides DPC protection over elements in the cavity, ensuring moisture in the external cavity is channelled back out of the building.
Suitable for projects requiring Document B compliance in buildings utilizing steel frame systems in the external cavity.
A non-combustible cavity tray systems for projects requiring Document B compliance in buildings utilizing steel frame systems in the external cavity. Our innovative non-combustible A1 fire rated Cavity Tray system is a practical and technically superior solution to provide DPC protection over lintels, masonry supports, soffit systems and other elements in the cavity such as fire barriers.
Features and benefits:
Color | Silver |
Finish | Metallic Manufacturer guidanceCold-rolled stainless steel. |
Material | Stainless steel Guidance for specification option:
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Shape | Rectangle Other |
Length | Bespoke |
Width | Bespoke |
Height | Bespoke |
Material | Stainless steel Guidance for specification option:
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Uniclass | |
CAWS | F30/56 Preformed cavity trays F30/370 Preformed cavity trays |
Material | Austenitic stainless steel, grade 304 to BS EN 10088-2. |
To fit cavity width | Minimum of 50 mm. |
Height | Minimum of 94 mm.Manufacturer guidance
|
Length (effective) | 200–2500 mm.Guidance for specification option: Insert requirements. |
Cavity cloaks | Brick trays.Guidance for specification option: Brick Trays are modular units which are fabricated to suit brick coursing. Keyfix manufacture trays in half brick increments from a one Brick Tray to a 10 Brick Tray to suit any brick size or bond pattern. Brick Trays are specified depending on the run of brickwork, taking into account the additional adjustability available when overlapping Corner Units. Each Brick Tray is formed with an integral Stop End at each end, which prevents moisture travelling horizontally and ensures it can only escape tray via a weep. Each Brick Tray also incorporates a patented indented surface which provides a physical key within mortar, eliminating the risk of slip plane developing. Indented surface also removes any concern surrounding rising damp and removes the need for additional DPC associated with perforated Cavity Tray systems. Jointing piece.Guidance for specification option: A Jointing Piece is used to join together two abutting Brick Trays where Stop Ends abut each other, therefore allowing the NCCT system to remain continuous over a run of brickwork. By locating Brick Trays into the Lower Clip pre-fitted to the Jointing Piece, this provides an overlap that will drain any moisture present between the abutting Stop Ends. The perp joint between two abutting Brick Tray Stop Ends must be fully filled with mortar. Keyfix external corner.Guidance for specification option: Corner Units are required on every project in order for the Non-combustible Cavity Tray System to continue around corners on a building or at a brick return reveal. The length of the Corner Units allow for adjoining Brick Trays to overlap by ½ Brick to 1 ½ Bricks, therefore accommodating varying brick coursing or cut brick dimensions. Keyfix provide a full range of prefabricated Corner Units to suit external and internal returns. Bespoke corner angles are also available to order at no additional cost compared to a standard Keyfix NCCT Corner Unit. Keyfix internal corner.Guidance for specification option: Corner Units are required on every project in order for the Non-combustible Cavity Tray System to continue around corners on a building or at a brick return reveal. The length of the Corner Units allow for adjoining Brick Trays to overlap by ½ Brick to 1 ½ Bricks, therefore accommodating varying brick coursing or cut brick dimensions. Keyfix provide a full range of prefabricated Corner Units to suit external and internal returns. Bespoke corner angles are also available to order at no additional cost compared to a standard Keyfix NCCT Corner Unit. Keyfix LH reveal corner.Guidance for specification option: Corner Units are required on every project in order for the Non-combustible Cavity Tray System to continue around corners on a building or at a brick return reveal. The length of the Corner Units allow for adjoining Brick Trays to overlap by ½ Brick to 1 ½ Bricks, therefore accommodating varying brick coursing or cut brick dimensions. Keyfix provide a full range of prefabricated Corner Units to suit external and internal returns. Bespoke corner angles are also available to order at no additional cost compared to a standard Keyfix NCCT Corner Unit. Keyfix RH reveal corner.Guidance for specification option: Corner Units are required on every project in order for the Non-combustible Cavity Tray System to continue around corners on a building or at a brick return reveal. The length of the Corner Units allow for adjoining Brick Trays to overlap by ½ Brick to 1 ½ Bricks, therefore accommodating varying brick coursing or cut brick dimensions. Keyfix provide a full range of prefabricated Corner Units to suit external and internal returns. Bespoke corner angles are also available to order at no additional cost compared to a standard Keyfix NCCT Corner Unit. Ribbed overlapping joints.Guidance for specification option: The Keyfix NCCT system is the only Cavity Tray of its kind which does not rely on tapes, sealants or mastics and instead creates a mechanical, dry seal joint referred to as Ribbed Overlapping Joints. This mechanical, dry seal joint is created when ribs formed by downward pressed channels within the tray profile are completely overlapped by a Brick Tray. The use of tapes, sealants or mastics increases the possibility of onsite installation errors outside of the manufacturers control and therefore the warranty. By eliminating the use of tapes, sealants or mastics at joints, the Ribbed Overlapping Joint gives unrivalled joint integrity lifespan and removes all installation errors associated with onsite conditions such as dust, moisture or low temperatures, which prevents “wet” joints performing, resulting in water ingress. Pier units.Guidance for specification option: Pier Units are fabricated bespoke depending on project requirements so one single Non-combustible Cavity Tray piece can be used in congested locations. Such as an 890 mm pier between two openings. Similarly to a Brick Tray, each Pier unit is finished with integral Stop Ends which ensures moisture is captured on top of tray and cannot escape unless via an intended weep. Pier Units also include an indented surface, therefore eliminating the risk of slip plane developing in the outer skin of masonry. Indented surface also removes any concern surrounding rising damp and removes the need for additional DPC associated with perforated Cavity Tray systems. Pier Units are available to suit from 440 to 1790 mm between two openings. Stepped capping piece.Guidance for specification option: Stepped Capping Piece’s are utilized when a Jointing Piece cannot be used because of a step in the panel of brickwork and negates the requirement for a Corner Unit to suit step in brickwork. By placing a Stepped Capping Piece over the top of the abutting Brick Tray Stop Ends, this allows the NCCT system to remain continuous over a run of brickwork while also accommodating the step in brickwork. It is critical that the perp joint between abutting Brick Tray Stop Ends must be fully filled between and on top of Stop Ends before placing Stepped Capping Piece over the top of Stop Ends. The maximum allowable step in brickwork which can be accommodated is 50 mm. |
Accessories | Keyfix Non-combustible Weep (NCW). |
Reaction to fire | A1. Guidance for specification option: Keyfix NCCT manufactured from stainless steel have an A1 fire classification defined by Commission Decision 96/603/EC. |
AdjustmentRange | Stop ends facilitate perp joint width adjustability of +/- 3 mm between 7–13 mm if required. Manufacturer guidanceLateral adjustment. |
Weight | Up to maximum of 4 kg per component. Guidance for specification option: Keyfix NCCT component weight data sheet available at request from manufacturer. |
Water drainage/reservoir layer | External and internal corner units sustained a flow of 0.45 L per minute per linear meter for a period of one hour without leaking. Manufacturer guidanceBBA Test Method. Test Report: T164436. |
LoadBearingCapacity | Keyfix NCCT will not adversely affect ability of the wall to sustain and transmit compressive load. |
ShearStrength | Tested in accordance with BS EN 1052-4:2000. |
Flexural strength | Tested in accordance with DD 86-1:1983. |
Durability | Under normal service conditions, lifespan is 125+ years. |
Standard | PD 6697, BS EN 1996, BS 8215, BS EN 10028-7, BS EN ISO 9001, BS EN ISO 14001, BS EN 1052-4, DD86-1. |
Types | As per manufacturers recommendations. |
Overall size | To suit span, loading, wall and finish type. |
Contains Red List materials | No |
Country of material origin | United Kingdom |
Country of product manufacture | United Kingdom |
Material | Stainless steel Guidance for specification option:
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Embodied carbonA1-A3 (production stage) as defined in BS EN 15804 | 5.27 kg CO₂ eq/kg Self declared |
Recyclability | 100 Manufacturer guidanceThis product is recyclable. |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 90 % Guidance for specification option: Up to 90%. |
NBS BIM Object Standard
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