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Verified by manufacturer 9 months ago
KIWA BDA
Certificate type
A framed KIWA BDA certified stone slip facade cladding system consisting of a Stone Wool insulation board, base-coated, meshed, stainless steel mesh finished off with brick slip or stone slip finish.
Suitable for use on the outside of steel or timber frame walls of new or existing domestic and non-domestic buildings, with height and boundary restrictions for some components of the system (see systems KIWA certificate for further information).
A KIWA BDA certified stone slip facade cladding system consisting of either vertical timber battens or cavity spacer rails, Stone Wool insulation board, base-coated, meshed, brick slip mesh and finished off with brick slip or stone slip finish.
Features and benefits:
Preparation:
Color | Grey White Other Various colours available for Wetherby Brick Slips. |
Finish | Coarse The System is finished with adhesive mortar, scrim cloth and brick slips bedded into brick slip adhesive mortar. |
Material | Mineral wool Insulation boards. Aluminium Rails. Timber Spacer support battens/ rails. Steel Galvanized steel rails. |
Shape | Rectangle Square |
Length | 1200 mm |
Width | 600 mm |
Uniclass | |
CAWS | M21/20 External wall insulation system . . . . . . M21/210 External wall insulation system |
System performance | Thermal Performance.The systems can improve the thermal performance of external walls and can contribute to satisfying the requirements of the National Building Regulations. Strength and Stability.The systems has adequate strength and is designed to adequately resist impact damage and wind loads encountered in the UK. When the system incorporates a stone slip finish, the system can only be applied at ground and first floor level (maximum 6 m in height). System Tested to BS EN 13501-1.Achieve a value of A1 reaction to fire classification. Metal cavity rails must be used above 18 m and Timber battens are acceptable for anything less than this. Risk of Condensation.The system can contribute to a limiting risk of interstitial and surface condensation. Durability.When installed and maintained in accordance with the Certificate holders recommendations and this Certificate, the system will remain effective for at least 30 years. Further Information.For further information on the above points visit the system KIWA BDA Certificate. |
Support rails and brackets | - |
Material
| 15mm RagRail Cavity Spacer Rails.
25mm RagRail Cavity Spacer Rails.
25mm Timber Battens.
|
Bracket fixings
| LS 5.5 (steel frame).R-QCP (timber frame). |
Base boards | - |
Material | Framed substrate sheathed using Wetherby approved sheathing board.The framed substrate must be sheathed using a Wetherby approved sheathing board ensuring that they achieve minimum pull out requirements to be suitable for the systems application. |
Fixings | Fix boards in accordance with site conditions and manufacturer instructions. |
Insulation | - |
Material | Stone Wool Insulation. |
Fixings
| TKR Screw Range.R-QCP Screw Range. |
Fire barriers and stops | - |
Material | Not required.Tenmat Intumescent Strip.
Tenmat NVFB Fire Barrier.Tenmat NVFB Non-Ventilated Fire Barrier – Vertical cavity closer and cavity closer around openings (where required). |
Fixings | TKE Range – Steel Frame .Typically used to fix fire barrier and intumescent strips to their agreed locations (Rail/ Sheathing Board/ Steel Frame). R-UCF Screw Range screw range.Typically used to fix fire barriers to their agreed locations (Timber Batten / Sheathing Board/ Timber Frame). JT3-FR6 Stainless Steel Screw.Typically used to fix NVFB fire barriers to their agreed locations (Sheathing Board/ Framed Substrate). |
Beads and trims | Not required.Deflector beads. |
Movement joints | - |
Form with
| WBS Stainless Steel Movement Joints.WBS PVC Movement Joints.WBS Stainless Steel Surface Mounted Render Stop Beads.WBS PVC Surface Mounted Render Stop Beads. |
Sealant | Compriband sealing tape must be installed between the insulation boards.Where required. |
Render carrier or reinforcement | - |
Material | WBS Alkali-resistant scrim cloth incorporated into scrim adhesive.Stainless Steel Brick Mesh applied over scrim adhesive. |
Mesh size | Alkali Resistant Mesh 50 m² (roll).Stainless Steel Brick Mesh – 1195 x 819 mm.Stainless Steel Stone Slip Mesh – 1195 x 819 mm. |
Fixings
| TKE screw range.
R-UCF screw range.
|
Render | - |
Material | WBS 9-25mm Brick Slips.
WBS Pointing Mortar.
Stone Slips.Contact Wetherby Building Systems for further information regarding this system. |
Decorative finish | - |
ColourSee brick slip brochure and insert requirement. | - |
System accessories | WBS Sealing Tape: Pre-compressed, expanding waterproof sealing tape.WBS Firtree Fixings.WBS Jointing Pieces.WBS End Caps.WBS EVO-STIK Silicone Sealant.WBS APU Bead.Roof verge extenders.Under and over cills.Cill extenders.End stop profiles.Insert requirement: Available in stainless steel, PVC-U or organic polyester powder-coated galvanized steel. Corner mesh profiles.Insert requirement: Available in stainless steel, PVC-U or organic polyester powder-coated galvanized steel. Expansion joint profiles.Insert requirement: Available in stainless steel, PVC-U or organic polyester powder-coated galvanized steel. |
Samples required | Approved samples required.
|
Execution | Install system as per manufacturer’s instructions.
|
System completion | Inspection, documentation, O&M manuals and data sheets.
|
Third-party certification | NHBC. |
Dimensions | 1200 x 600 mm. |
Density | Stone Wool: 160 kg/m³ (outer layer), 100 kg/m³ (inner layer). |
CompressiveStrength | Stone Wool: ≥10 kPa. Compressive stress at 10% deformation to BS EN 826. |
ThermalConductivity | 0.036 W/m·K. To BS EN 12667. |
Reaction to fire classification | With Timber battens: Class A2-s1, d0 to BS EN 13501-1:2002. With Wetherby Cavity Spacer Rails: Class A1 to BS EN 13501-1:2002. |
Board thickness | 80 mm (minimum). Insert requirement. |
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