Verified by manufacturer 24 days ago
BBA Agrément Certificate
Certificate type
Cavity tray, classified A2-s1, d0 to EN 13501-1 . It is composed of aluminium facings and stonewool core providing a lightweight and easy to install solution.
Siderise ‘CT’ Cavity Tray has been specially developed to meet the new requirements of Approved Document B for relevant buildings, where the use of traditional combustible cavity trays is no longer permitted above 18m in steel-framed structures (SFS).
Reaction to Fire
Siderise 'CT' has a ‘Reaction to Fire’ classification of ‘A2-s1, d0' to EN 13501-1 (Classification report available on request) and is therefore compliant for use with steel-framed structures (SFS) in relevant buildings above 18m.
Damp Proofing
As with traditional cavity trays, Siderise 'CT' provides an essential damp proof course (DPC) that crosses the cavity of a masonry wall to direct water out of the external face of the wall and to prevent dampness from permeating the internal skin of a wall.
Siderise 'CT' is a lightweight solution that is simple to install and provides a durable solution to the problem of damp penetration below the roofline of a masonry structure. It is easy to handle and can be installed on-site without any specialist equipment.
Physical Properties
The product has a running length of 1m with a 50mm overlap joint. It is manufactured to triangular sections with a height of 150mm, an additional 50mm ‘top flange’ to the back wall, and a 105mm ‘bottom flange’ at the base. The width is then manufactured to suit the cavity size. A typical cavity width accommodated for the product is between 100mm to 350mm (for other cavities please contact Technical Services). Drainage is facilitated via weep holes as normal.
Siderise 'CT' Cavity Tray's design features include dual aluminium skins to produce a secondary defence against moisture ingress. The aluminium faces are robust and durable to cope with site installation whilst ensuring that the water permeability is not compromised. The same unique formulation of stonewool is used in the central core as is used for all Siderise® fire barriers to maintain continuity of performance. Refer to the Installation Instructions and Standard Details for product sequencing.
Features and Benefits:
Color | Silver |
Finish | Foil |
Material | Mineral wool Insulation. Foil |
Shape | Triangle Triangular prism. |
LengthRunning length of 1000mm with a 50mm overlap joint | 1000 mm |
WidthA typical cavity width accommodated for the product is between 100mm to 350mm (for other cavities please contact Siderise Technical Services) | Bespoke A typical cavity width accommodated for the product is between 100mm to 350mm (for other cavities please contact Siderise Technical Services) |
HeightHeight of 150mm, and an additional 50mm ‘top flange’ to the back wall | 150 mm Height of 150mm, an additional 50mm ‘top flange’ to the back wall |
Uniclass | |
CAWS | F30/380 Junction cloaks/ stop ends for preformed dpcs/ cavity trays F30/385 Junction cloaks/ stop ends for preformed dpcs/ cavity trays F30/370 Preformed cavity trays F30/58 Preformed dpc/ cavity tray junction cloaks/ stop ends F30/56 Preformed cavity trays |
Product range |
Third party certification | BBA Agrément Certificate. |
Material | Aluminium, mineral wool. |
To fit cavity width | To fit typical cavity widths between 100–300 mm. For other cavities please contact manufacturer's Technical Services. |
Height | 150 mm.Typical height; please contact manufacturer's Technical Services to discuss other heights). |
Length (effective) | 1000 mm.50 mm overlap joint. |
Accessories | Not required.Siderise CT Aluminium Jointing Tape.Must be used at all joints and intersections. Siderise DPM Seal.Must be used where embedded in mortar. Siderise pre-formed Stop Ends. |
Reaction to fire | To EN 13501-1, Class A2-s1, d0. |
ShearStrength | To EN 1052-4. |
Flexural strength | DD 86-1. |
Insulation | Stone wool. |
ThermalConductivityλ90/90 . | 0.034 W/m·K. |
pH value | 7. The base stone wool is chemically inert. An aqueous extract of the rock wool is neutral (pH7) or slightly alkaline. Resistant to most acids and weak alkaline solutions. |
Biological | Vermin and rot proof. Does not encourage the growth of fungi, moulds or bacteria. |
Contains Red List materials | No |
Country of material origin | United Kingdom |
Country of product manufacture | United Kingdom |
Recyclability | Recyclable The product is recyclable. |
NBS BIM object standard
This BIM object has been authored to meet the requirements of the NBS BIM object standard.
Find out more about the NBS BIM object standard.
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