Siderise EW Systems have been developed to provide a simple and easy to install method of sealing external wall cavities for fire and smoke in external masonry constructions.
Additionally, the products have excellent sound reduction qualities which can be used to combat unwanted noise via flanking transmission.
These products represent an ideal combination of fully qualified performance and practical installation.
Siderise EW has 'Certifire' 3rd party approval (CF 5727).
Siderise EW Systems comprise of a low resin content stone wool insulation core which is pre-compressed internally to form a resilient strip. The material is faced on two sides with a reinforced Class 0 aluminium foil which is an effective smoke barrier. Available in the following forms:
Pre-cut Strips
Sheets
Siderise EW should be installed in accordance with PD6697:2019 - 'Recommendations for the design of masonry structures to BS EN 1996-1-1 and BS EN 1996-2'.
Siderise EW Systems have been tested in conjunction with a DPC in accordance with EN1366-4:2006 + A1:2010.
Siderise EW Systems have 'Certifire' 3rd Party Approval - certificate CF 5727 refers.
Table 1 : Resistance to Fire to EN1366-4
Orientation | EW System | Thickness | Gap Width (mm) | Fit Type | Brackets (G/S) | Classification (minutes) | Certification |
---|---|---|---|---|---|---|---|
Vertical | EW-CB30 | 75mm | 20-50 | +10% Compression | n/a | EI 30 | (Applied for) |
51-150 | Friction | B65/110 | EI 30 | CF 5727 | |||
151-250 | Friction | B195 | EI 30 | CF 5727 | |||
251-350 | Friction | B355 | EI 30 | (Applied for) | |||
351-450 | +10mm Compression | B355 | EI 30 | CF 5727 | |||
EW-FS120 | 120mm | 20-50 | Friction | n/a | EI 120 | (Applied for) | |
51-150 | Friction | B65/110 | EI 120 | CF 5727 | |||
151-250 | Friction | B195 | EI 120 | CF 5727 | |||
251-350 | Friction | B355 | EI 120 | (Applied for) | |||
351-450 | +10mm Compression | B355 | EI 120 | CF 5727 | |||
Horizontal | EW-CB30 | 75mm | 20-50 | +10% Compression | n/a | EI 30 | (Applied for) |
51-150 | Friction | B65/110 | EI 30 | CF 5727 | |||
151-250 | Friction | B195 | EI 30 | CF 5727 | |||
251-350 | Friction | B355 | EI 30 | (Applied for) | |||
EW-FS120 | 120mm | 20-50 | Friction | n/a | EI 120 | (Applied for) | |
51-150 | Friction | B65/110 | EI 120 | CF 5727 | |||
151-250 | Friction | B195 | EI 120 | CF 5727 | |||
251-350 | Friction | B355 | EI 120 | (Applied for) |
Friction Fit - product should be sized equal to the void width and installed with no gaps.
Please note product supplied in strip form will have a -0mm/+4mm tolerance.
Compression Fit - the product should be sized to the void width plus a minimum of +10mm or 10% compression (Please see Table 1).
Please see separate installation instructions (available for download from our website) for more information.
Siderise EW has been tested in accordance with the stated test standard for masonry assemblies. The stated classifications (EI) have in some instances been stated lower than achieved in testing, this is to keep simplicity in the range as either a 30-minute or 120-minute product. For specific Integrity (E) and Insulation (I) values please refer to Certifire CF 5727.
When considering Steel Frame Systems (SFS) it is imperative that the supporting structure is of at least an equal fire performance rating to that of the Cavity Barrier or Fire Stop.
For other void sizes or additional advice, please contact Technical Support.
Siderise EW additionally provides an effective sound barrier as the material construction and inherent properties of the stonewool core afford the EW exceptional acoustic performance.
Their acoustic performance is attributable to the mass of the stonewool core coupled to the unique resilient lamella board internal construction. Also, the foil facings and the additional sealing of joints with foil tape all serve to provide improved air tightness.
Based on laboratory tests to determine airborne sound transmission in accordance with BS EN ISO 140-3: 1995, the following Weighted Sound Reduction Index (Rw) values can be used.
Table 2 : Weighted Sound Reduction Index
EW System | Thickness (mm) | Rw (dB) |
---|---|---|
EW-CB30 | 75 | 21 |
EW-FS120 | 120 | 25 |
Sound Research Laboratories Ltd. Test report no. C/99/5L/7743 refers.
When properly installed at external masonry cavity wall junctions, the EW Systems will significantly reduce any potential flanking transmission. The precise value will depend upon the specifics of the construction.
Please contact Technical Support for project-specific advice.
Thermal conductivity : λ10 = 0.038 W/m.K (tested foil to foil)
Damp Proofing
Siderise EW must be damp-proofed in accordance with PD6697:2019 - 'Recommendations for the design of masonry structures to BS EN 1996-1-1 and BS EN 1996-2'.
Siderise EW - Cavity Barriers and Fire Stops
Table 3 : Product Properties
Property | Value |
---|---|
Reaction to Fire | Classification to EN 13501-1 : 'A1' |
Resistance to Fire | Classification to EN 13501-2 : Please see Table 1 |
Thermal Conductivity | λ10 = 0.038 W/m.K (tested foil to foil) |
Chemical | 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 and does not encourage the growth of fungi, moulds or bacteria. |
Effect of water | Non-hygroscopic. Unaffected by humid atmosphere. Must be suitably damp proofed in accordance with codes of practice for masonry constructions. |
Compatibility | Compatible with all normal building materials. |
Maintenance | No maintenance required unless disturbed. |
Handling | Easy to handle but should be treated with due care to ensure material integrity and shape are maintained. |
Storage | Store in dry conditions. |
Siderise offers a range of ancillary products to complement the EW range these include:
Fixing Brackets must be used in the installation of the product:
Brackets come in two forms: 'G' - Galvanised Steel Brackets and 'S' - Stainless Steel Brackets.
Brackets are supplied with all EW in strip form, but must be ordered separately for all EW in sheet form.
Aluminium Jointing Tape must be used at all joints and intersections:
Fire & Acoustic Sealant may be used for small gaps and undulations:
Siderise EW Systems are environmentally friendly:
The following information is available for download via the website:
For technical advice or support please contact: technical.services@siderise.com
For Installation Training or Site Inspections please contact: site.services@siderise.com
The information in this datasheet is believed to be accurate at the date of publication. Siderise has a policy of continuous product
improvement and reserves the right to alter or amend the specifications of products without prior notice. Siderise does not accept
responsibility for the consequences of using the products described outside of the recommendations within this datasheet. Expert
advice should be sought where there is any doubt about the correct specification or installation of Siderise products.
Published Version: EW_v1_41_20211117_175