BR 135 CLASSIFIED RAINSCREEN CLADDING SYSTEMS – BS8414

Sotech’s commitment to authentic engineering capability has been witnessed over several years in the testing and development of products.   First successful fire test carried out in 2006 with Optima TFC applied to masonry wall and in 2008 Optima TFC fixed to and supported by a SFS wall.  Both tests gained LPCB Red Book Entry.

 

Now, in response to the British Standard (BS) technical specifications, Sotech has completed fire testing on Optima TFC at BRE, Watford.

 

Optima TFC has been tested to BS8414-2 and is compliant to BR135:2013. (Refer to test reports below for specification requirements.)

Optima FC - BR135 Classified Rainscreen Cladding Systems

BS 8414-2:2015 refers to the fire performance of external cladding systems and is the test method for non-load bearing external cladding systems fixed to and supported by a structural steel frame.

 

The BS 8414 test methods were developed by the Building Research Establishment (BRE). They evaluate whether a cladding system subject to fire breaking out of an opening (such as a window) in an external wall, will result in excessive fire spread up the outside of the building and the potential for fire to re-enter at a higher level.

 

The tests are carried out in specialist laboratories, and are performed on full-scale systems (rather than small-scale samples) incorporating; joints and corner details, fixings, insulation, firebreaks, cavities and other elements of the system construction.

Expand - 3mm Aluminium Cassette Panels (Optima TFC) PPC Finish - To be considered for buildings over 18m
BR 135 Classified Rainscreen Cladding Systems - Optima TFC Solid Aluminium

To be considered for buildings over 18m.

BS 8414 – 2:2015 + A1:2017

Test on Sotech cladding system with Sotech Optima TFC solid aluminium panels, PPC finish and Rockwool insulation

System/Material: 3mm Aluminium Cassette Panels (Optima TFC) PPC Finish
Test Report Number: P110646-1000, 3MM ALUMINIUM OPTIMA TFC
Test Date: 28th November 2017
Fire test performed at: BRE Global Ltd, Watford

For compliance specification see fire test report.

Generic Cladding Type - Rainscreen

Cavity Depth - 85mm

Relevant Test Method - BS 8414 - 2:2015 + A1:2017

Substrate - Structural Steel Test Frame

Insulation - 180mm-thick Rockwool

External Finish - 3mm-thick Sotech Optima aluminium cassette panels

Vertical Cavity Barriers - Siderise Lamatherm RV-90/30 stone wool cavity barrier (75mm-thick x 235mm-deep)

Horizontal Cavity Barriers - Siderise Lamatherm RH25G-90/30 stone wool cavity barrier with intumescent strip (75mm-thick x 200mm-deep)

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Expand - 3mm Aluminium Hook on Rainscreen (Bespoke Optima FC), PPC Finish
DLR 1592

BS8414 – 2:2015 +A1:2017

Test on Sotech Bespoke Optima FC cladding solid aluminium panels with PPC Finish. 

System/Material: 3mm Aluminium (Bespoke Optima FC) PPC finish
Test Report: DLR1592
Classification Report: SR1010
Fire test performed at: Al Futtaim Exova, Dubia

For compliance specification see fire test report.

Slab bracket - 3mm galvanised angle bracket, 2mm galvanised angle bracket.

Structural insulated panel - 175mm Hemsec Structural Insulated Panel

Sheathing board -12.5mm thick Siniat weather defence board

Breather membrane - Effisus A2 fire rated membrane

Horizontal Intumescene Cavity Barrier - Siderise RH25S-90/30, horizontal intumescent cavity barrier.

Vertical Cavity Barrier - Siderise RV-90/30, vertical cavity barrier

Firestop at Slab Edge - Corofil C450 fire stop

Cassette Insert - Siderise open state cassette insert 100x50mm

Brackets - Envelope bracket F2F anodised 01/FTF/80 with no insolator, F2F box section anodised packed with 100mm Rockwool at bottom, 200mm F2F spigots anodised packed with Rockwool

Carrier Rails - ECO carrier profile anodised with gasket

Panel - PPC aluminium Sotech Optima FC panel, 3mm thick

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report

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report

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Expand - 3mm Aluminium Hook on Rainscreen (Optima FC), Anodised Finish
DLR1585

BS8414 – 2:2015 +A1:2017

Test on Sotech Optima FC cladding solid aluminium panels with Anodised Finish and Rockwool insulation.  

System/Material: 3mm Aluminium, Anodised Finish on Optima FC
Test Report: DLR1585
Classification Report: SR0988
Fire Test Performed At: Al Futtaim Exova, Dubia

For compliance specification see fire test report.

Internal Wall Board - 12.5mm thick British Gypsum Gyproc Fireline board (2 layers)

Steel framing system (SFS) - 150mm Metsec lightweight structural framing system (SFS)

Insulation - 150mm thick Rockwool flexi slab

Sheathing board -12mm thick RCM Y-wall calcium silicate board

Breather membrane - Tyvek Firecurb housewarp breather membrane

Bracket - C-channel, 3mm thick aluminium Top Hat. Helping Hand bracket - VB90S-6.5 Nvelope aluminium bracket with thermal pad, VB90D-6.5 Nvelope aluminium bracket with thermal pad.

Horizontal Intumescene Cavity Barrier - Siderise RH25S-90/30, horizontal intumescent cavity barrier.

Vertical Cavity Barrier - Siderise RV-90/60, vertical cavity barrier

Firestop at Slab Edge - Corofil C450 fire stop

Cassette Insert - Siderise open state cassette insert 100x50mm

Thermal Insulation - 125mm Rockwool Duo Slab insulation

Carrier Rails - Extruded aluminium FC carrier railings 3mm aluminium hook plate

Panel - Anodised aluminium Optima FC facade panel 3mm thick

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report

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Expand - 4mm Alucobond Plus Cassette Panels (Optima TFC)
BR 135 Classified Rainscreen Cladding Systems - Optima TFC - FR ACM

BS 8414 – 2:2015 + A1:2017

Test on Sotech Optima TFC cladding system with Alucobond Plus aluminium composite material (ACM) panels and Rockwool insulation. 

System/Material: 4mm Alucobond Plus Cassette Panels (Optima TFC)
Report Number: P110649-1000, 4mm Alucobond Plus Optima TFC
Test Date: 5th December 2017
Fire test performed at: BRE Global Ltd, Watford

For compliance specification see fire test report.

Generic Cladding Type - Rainscreen

Cavity Depth - 85mm

Relevant Test Method - BS 8414 - 2:2015 + A1:2017

Substrate - Structural Steel Test Frame

Insulation - 180mm-thick Rockwool

External Finish - 4mm-thick Alucobond Plus cassette panels

Vertical Cavity Barriers - Siderise Lamatherm RV-90/30 stone wool cavity barrier (75mm-thick x 235mm-deep)

Horizontal Cavity Barriers - Siderise Lamatherm RH25G-90/30 stone wool cavity barrier with intumescent strip (75mm-thick x 200mm-deep)

Download full
report

Download classification
report

Download system details

Expand - 4mm Alucobond Plus Hook on Rainscreen (Optima FC)
Optima FC - BR135 Classified Rainscreen Cladding Systems

BS 8414 – 2:2015 + A1:2017

Test on Sotech Optima FC cladding system with Alucobond Plus aluminium composite material (ACM) hook-on cassette panels and Rockwool insulatation.  

System/Material: 4mm Alucobond Plus Hook on Rainscreen (Optima FC)
Test Report Number: P110650-1000, 4MM ALUCOBOND PLUS OPTIMA FC
Test Date: 8th December 2017
Fire test performed at: BRE Global Ltd, Watford

For compliance specification see fire test report.

Generic Cladding Type - Rainscreen

Cavity Depth - 80mm

Relevant Test Method - BS 8414 - 2:2015 + A1:2017

Substrate - Structural Steel Test Frame

Insulation - 185mm-thick Rockwool

External Finish - 4mm-thick copper-coloured Aluminium Plus hook-on cassette panels

Vertical Cavity Barriers - Siderise Lamatherm RV-90/30 stone wool cavity barrier (75mm-thick x 235mm-deep)

Horizontal Cavity Barriers - Siderise Lamatherm RH25G-90/30 stone wool cavity barrier with intumescent strip (75mm-thick x 200mm-deep)

Download full
report

Download Classification Report

Download system details

Expand - 4mm Larson A2 Hook on Rainscreen (Optima FC)

BS8414 – 2:2015 +A1:2017

4mm Larson A2 Hook on Rainscreen (Optima FC)

Test on Sotech Optima FC cladding with Larson A2 aluminium composite material (ACM) hook-on cassette panels and Rockwool insulation.

System/Material: 4mm Larson on Optima FC Rainscreen
Test Report: DLR1539
Classification Report: SR0936
Fire test performed at: Al Futtaim Exova, Dubia

For compliance specification see fire test report.

Internal Wall Board - 12.5mm thick Knauf Sound Panel plaster boards (2 layers)

Steel framing system (SFS) - 150 x 1.2mm EOS structural framing system

Insulation - 100mm thick Rockwool flexi slab

Sheathing board -10mm thick RCM cement particle board

Breather membrane - Tyvek 3060B Housewarp breather membrane

Brackets - C-channel, Pressed 'X' channel-3mm by Elite Aluminium Fabrications. Helping Hand bracket - 150mm Nvelope aluminium bracket with thermal pad, 75mm Nvelope aluminium bracket with thermal pad

Carrier Rails - Sotech Optima FC Rainscreen system

Horizontal Cavity Barrier - Siderise RH25G - 090/60/224-250 horizontal intumescent cavity barrier. Fire stop cut to 150mm to allow 25mm ventilated cavity.

Vertical Cavity Barrier - Siderise RVG - 090/060/189-228 vertical cavity barrier

Firestop - Colorfil C144 fire strip, 120min fire resistance

Cassette Insert - Siderise open state cassette insert

Thermal Insulation - 150mm thick Rockwool Duo Slab insulation

Panels - 4mm thick Alucoil Larson A2 panel. Top skin - Aluminium, Core - Mineral, Bottom Skin - Aluminium

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report

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report

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Testing / Warranty

Sotech’s commitment to authentic engineering capability has been witnessed over several years in the testing of products as they are being developed.

 

From the earliest Optima TFC designs tested at BRE, Garston for wind serviceability and safety, air permeability and water penetration for Erie Basin, Manchester project.

All certificates are available on request.

SOTECH Safe Hands M

SOTECH OPTIMA: A SAFE PAIR OF HANDS

 

From the earliest tests of our Optima TFC system at BRE through to the most recent large-scale testing of bespoke systems in Exova, Dubai, ‘safety’ has always been our primary concern, followed closely by outstanding design, flawless finishes and an end to end proactively managed production line.

 

Established in 1982, Sotech is a leading manufacturer of bespoke metal rainscreen cladding and architectural façade systems. When you choose us, you’re choosing a safe pair of hands.

Downloads

FC Optima

Download the full system details:

Secret fix hook on panel system, complete with rail and bracket support.

System fully independently CWCT tested and certified.

Download PDF for full details.

Bim Objects

Optima Rainscreen is BIM ready

Sotech as a manufacturer within the construction industry is striving to provide our clients with accurate digitised product information to help and support our customers and other stakeholders to drive BIM forward.

Speak to an expert

If you require advice with design detail, assistance with a specification or to discuss your project in detail contact our technical department who have over 35 years experience in the construction industry. The team is on hand to provide knowledge and support at every stage of your project.