Building Envelope Trimapanel® FTF

Trimapanel® FTF

Insulated, secret-fix, flat panel for a modern architectural appearance

Trimapanel® FTF (frame-to-frame) system is an enhanced panel with the ability to span up to 8m, enabling the product to run horizontally between main frame steelwork or alternatively vertically between base and eaves rails. This not only removes the cost of a secondary steelwork support system but reduces the installation programme and removes dust traps, providing a clean and attractive finish to the inside of the building.

Trimapanel® FTF is an insulated, secret-fix architectural wall cladding system that is quick and easy to install for fast build times. The system comprises a pre-finished steel liner profile, a LPCB Approved PIR insulation core and a micro-rib pre-finished steel external weathering profile. Available in a range of colours, the panels come in 90mm and 120mm insulation thicknesses and provide U-values down to 0.17W/m2K.

Click the logo above to download the BIM Object for this product.

Provides modern, high-end aesthetics

  • The enhanced panel has the ability to span up to 8m, removing the need for secondary steelwork.
  • Unique secret-fix joint design allows primary fixings to be hidden from view and, together with the micro-rib profile, provides flat external aesthetics.
  • Flexible design allows vertical and horizontal panel installation.
  • Available with a wide range of flashing options, ancillaries, integrated window, and fabricated corner and curved panel options.
  • Available with Colorcoat® High Reflect finish to the internal face.

Independent product verification for risk free specification

  • Third party validation of high standards of quality, thermal performance, fire safety, acoustic performance, air-tightness, water penetration and environmental credentials.
  • LPCB (Loss Prevention Certification Board) approval to LPS 1181 Part 1 helps reduce insurance premiums and assures reaction to fire performance.
  • Manufactured in factory conditions operating to quality management standard BS EN ISO 9001:2015 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.

Performance guaranteed

  • Available with Platinum® Plus system guarantee of up to 30 years, covering a pre-approved range of reputable, high-end components.
  • Colorcoat HPS200 Ultra® or Colorcoat Prisma® 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.

Basic technical data

Thickness (mm) 90, 120
Maximum length (mm)   12,000
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) +/- 2
Thickness (mm) +/- 2
Squareness (mm) < 6  
Length (mm) < 3m +/- 6
Length (mm) > 3m +/- 10

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:

  • Trimapanel® FTF system.
  • Colorcoat HPS200 Ultra® or Colorcoat Prisma® pre-finished steel.
  • Stainless steel fixings.
  • Roof lights.
  • Sealants.
  • Fillers.
  • Fall arrest Systems.
  • Flashings & Gutters.
  • 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® FTF 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.  

Thickness (mm) U-value (W/m2K)*
90 0.24
120 0.17

*Tata Steel figures computer modelled in accordance with EN ISO 10211, as stated in MCRMA Technical Note 14.

Fire safety

The Trimapanel® FTF system has been tested to LPS1181-1 and is LPCB approved to Grade EXT-B. 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.

The acoustic performance of the Trimapanel® micro-rib 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 90mm core.

Frequency (Hz)SRI Values (dB)*Frequency (Hz)SRI Values (dB)*
100 12.9 800 28.1
125 14.5 1,000 29.8
160 16.2 1,250 31.6
200 17.8 1,600 33.5
250 19.4 2,000 35.2
315 21.1 2,500 37.0
400 22.9 3,150 35.2
500 24.5 4,000 32.8
630 26.3 5,000 30.0

Weighted S.R.I Rw = 29.4dB

*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:

  • Detail design.
  • Wind loading calculations.
  • U-value calculations.
  • Load span checks.
  • Acoustic SRI predictions.
  • Specification writing.
  • 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:

  • Structural roof deck in construction
  • Composite floor deck in construction
  • Sustainable steel cladding refurbishment solutions
  • Factory tour of Insulated panel lines

To request a CPD seminar please click here.

Product Downloads

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Trimpanel® FTF brochure.jpg

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