Insulated, secret-fix, smooth faced wall panel that provides a high-end architectural appearance
Trimapanel® flat is an insulated, secret-fix, smooth faced wall cladding that is quick and easy to install for fast build times. Available in 70mm, 90mm and 120mm insulation thicknesses and bespoke lengths up to 12m to minimise waste and provide U-values down to 0.17W/m2K.
Trimapanel® flat is available in Colorcoat HPS200 Ultra® pre-finished steel in a range of sizes, shapes and colours, and the extensive fabrication options, offers a design flexibility that enables architects to create unique and modern design solutions. The panel can be laid vertically or horizontally. The unique secret-fix joint design allows primary fixings to be hidden from view, which combined with the panel’s flat surface provides outstanding smooth external aesthetics.
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Unique secret-fix joint design allows primary fixings to be hidden from view, which combined with the smooth flat face provides outstanding external aesthetics.
Flexible design allows vertical and horizontal panel installation.
Available with a wide range of flashing options, ancillaries, integrated window, integrated louvre, fabricated corner and curved panel options
Available with Platinum® Plus system guarantee of up to 30 years, covering an approved range of market leading, high-end components.
Colorcoat HPS200 Ultra® pre-finished steel used as standard, offering a wide range of colours and long-term performance for up to 40 years with the Confidex® Guarantee.
Independent product verification for risk free specification
Approved to FM Class 4880 and 4881 to an unlimited wall height.
LPCB (Loss Prevention Certification Board) approval to LPS 1181 Part 1 helps reduce insurance premiums and assures reaction to fire performance.
Fire resistance performance of 15 mins insulation and 4 hours integrity achievable with enhanced fixing methods (horizontally or vertically laid).
Manufactured in factory conditions operating to quality management standard BS EN ISO 9001:2008 and environmental management standard BS EN ISO 14001:2004.
Product specification and performance in accordance with BS EN 14509, European Product Standard for CE Marking.
Excellent sustainability credentials
Lower air permeability of the system reduces energy costs, carbon emission rates and facilitates compliance with Building Regulations (Part L2 & TH 6).
Full traceability of all component materials and certified ‘very good’ to BRE’s responsible sourcing standard BES 6001.
Basic technical data
70, 90, 120
Maximum length (mm)
Minimum length (mm)
Weight based on thickness in mm (kg/m2)
*Panels ordered below the minimum on-line length will require off-line cutting and will be subject to a surcharge.
Panel manufacturing tolerances
(L = length of measurement between high points)
For L = 200mm, 0.6
For L = 400mm, 1.0
For L > 700mm, 1.5
Cover width (mm)
Length (mm) < 3m
Length (mm) > 3m
Tolerance is in accordance with BS EN 14509
Platinum® Plus provides a complete building envelope solution guaranteed for up to 30 years. Designed in collaboration with our innovative supply chain of leading component manufacturers, our comprehensive portfolios of high quality products are fully integrated to provide the widest range of roofing and cladding systems.
The Platinum® Plus system guarantee includes, amongst others, the following components:
The guarantee is offered directly to building owners, giving a direct link back to Tata Steel as the one point of contact.
For full details of our approved components please contact our technical team on +44 (0) 1244 892199.
To ensure that the building envelope will perform as required by the client, we work with specifiers to tailor a specification that considers the interactions of the components and how they impact the building design and performance. We will then provide a detailed Platinum® Plus specification for use within the project tender package, together with a list of recommended installation contractors.
To guarantee the quality of components used on your building, our team of technical construction experts will visit the site to check for compliance to specification, reducing the risk of any issues arising in the future. Once the project is completed the installer will be required to apply for the guarantee using the supplied forms included in the specification document. Tata Steel will then issue the Platinum® Plus guarantee directly to the building owner.
How to raise a specification?
The Platinum® Plus system guarantee needs to be registered with the specifier prior to the tender package being distributed. Please contact our technical team so that we can help you to guarantee the longevity of your building on +44 (0) 1244 892199.
The Trimapanel® flat system complies with the minimum requirements of the Conservation of Fuel and Power sections of the Building Regulations, Approved Document Part L2, England and Wales and Technical Handbook – Scotland. The panel construction offers highly consistent insulation performance, and the site-formed junctions provide a practical and effective method of ensuring good thermal performance.
*Tata Steel figures computer modelled in accordance with EN ISO 10211, as stated in MCRMA Technical Note 14.
The Trimapanel® flat system has been tested to LPS1181-1 and is LPCB approved to both Grades EXT-B and EXT-A. Fire resistance performance of 15 mins insulation and 4 hours integrity is also achievable with enhance fixing and methods, contact the technical department for details. The internal surface of the panel complies with Class ‘O’ in accordance with the Building Regulations when tested to BS 476 Parts 6 & 7 and also achieves a Class B s2 rating in accordance with EN 13501-1.
Following rigorous structural and fire performance testing with FM Global, Trimapanel® flat panels have achieved FM Approvals certification to the following stringent standards:
4480: Class 1 Insulated wall and ceiling panels 4481: Class 1 Exterior wall systems (unlimited height)
Specifying and installing FM Approved products will provides assurance that the products have been objectively tested and confirm to the highest international standards. FM Approved roof and wall panel’s means you can be confident that your building envelope will withstand a broad range of fire and environmental risks, and be safe throughout its lifecycle.
The acoustic performance of the Trimapanel® flat system has been predicted using software developed by the Department of Applied Acoustics, University of Salford, under a research contract funded by the Metal Cladding and Roofing Manufacturers Association (MCRMA). The results below are based on a 70mm core.
SRI Values (dB)*
SRI Values (dB)*
Weighted S.R.I Rw = 28.9dB
*The predicted sound reduction index values should only be used to provide guidance for preliminary design and/or appraisal of cladding systems.
Our dedicated building envelope technical team are available to provide support and advice on the best product for your project. They are on hand to help with:
Wind loading calculations.
Load span checks.
Acoustic SRI predictions.
Advice on meeting Building Regulations, maximising BREEAM credits.
Assistance with SBEM.
Condensation risk analysis.
Assistance in product testing.
Inhouse CPD seminars - Primarily aimed at engineers and architects, these free seminars last around 50 minutes, ending with a question & answer session and are delivered by our experienced regional teams. Topics include: