Farrat Thermal Breaks reduce energy loss in London’s new ‘City Cluster’

Londons new City Cluster

22 Bishopsgate is one of 13 major build projects expected to change London’s skyline by 2026.

Designed by PLP Architecture, 22 or ‘Twentytwo’ Bishopsgate stands  278 metres tall as the City of London’s tallest tower within the financial districts new ‘City Cluster‘. The tower provides over 1.2 million sq ft of office space and can accommodate up to four tenants on each of the 62 floors.

Over 17,000 tonnes of superstructure structural steelwork and metal decking was designed and fabricated for construction by Severfieldwho approached Farrat during fabrication to supply a suitable solution to mitigate against thermal bridging between connections.

Superelevations, axial shortening and complex geometrical dilemmas presented challenges on this project, so Farrat worked closely with Severfield to manufacture a package of structural thermal breaks in various sizes, shapes and thicknesses to fit seamlessly into design details and meet specification.

Farrat’s load-bearing structural thermal break material with the highest levels of compressive strength and thermal insulation, was used between steel-to-steel connections to prevent thermal transfer from the exterior of the structure into the internal structure via the steel framework.

Farrat thermal break plates were also used in steel-to-concrete applications to greatly reduce heat loss into the concrete slab, providing better insulation for the structure overall.

22 Bishopsgate during construction with Farrat Thermal Break in-situ, courtesy of Severfield
22 Bishopsgate during construction with Farrat Thermal Break in-situ, courtesy of Severfield

For in-depth technical information on all our grades of thermal break materials, please head over to our Thermal Breaks page, or alternatively you can contact us.

‘Twentytwo’ Bishopsgate is due for completion later this year.

Farrat’s BBA certificated structural thermal break materials provide building design professionals with a robust solution to minimise energy loss. Suitable to mitigate against planar, linear and point load thermal bridging, Farrat thermal breaks can be used anywhere a penetration or transition exists in a building envelope to help achieve building performance standards. Performance characteristics include low thermal conductivity, high compressive strength and very limited creep under load.

Full specifications are available for import from NBS Plus.

Farrat supply facade thermal breaks for new flagship Adidas store

Farrat thermal breaks used to thermally isolate the facade retention steelwork at new Adidas store

A joint venture between Grosvenor Britain & Ireland and Stow Capital Partners, the 425 Oxford Street retail scheme involves the reconfiguration and extension of the lower five floors of a 10-storey building in the West End shopping district, to create a 45,000 sq. ft flagship unit for Adidas.

The redevelopment features new double-height windows on the ground floor and an extensive glass frontage.

To prevent heat loss through the building facade, Farrat have supplied Structural Thermal Breaks for use within the facade retention steelwork. The facade thermal breaks will act as a thermal insulator and avert thermal or cold bridging.

This is a simple, economical and extremely effective solution to meeting Building Regulations by way of reducing the risk of internal condensation.

Farrat Structural Thermal Breaks can be used in a wide variety of applications where there is a structural requirement of thermal insulation, including:

  • Steel to steel
  • Steel to concrete / masonry
  • Steel to timber
  • Concrete to concrete


A full list of typical applications can be found here.

Handover of the bespoke scheme to Adidas is targeted for Spring 2019.

For material properties, design advice and specification details for Farrat Structural Thermal Breaks, please click here.

Farrat assist Arup in developing a structural thermal break suitable for latest redevelopment in Fitzrovia, London

80 Charlotte Street is the transformation of 1960s single-use blocks into a fully integrated development in Fitzrovia, London.

80 Charlotte Street, Fitrovia - image courtesy of Make Architects

80 Charlotte Street, Fitzrovia – image courtesy of Make Architects

The redevelopment will include an upgrade to interiors, adding new upper-floor extensions and three new atria above roof level. The finished scheme will be a mix office, residential, retail and public space and aims to achieve an environmental rating of ‘Level 4’ under the Code for Sustainable Homes.

Farrat assisted Arup in developing a structural thermal break suitable for use between the primary floor beam and column connections.

Understanding the structural requirement of thermal insulation on this project was crucial, and Farrat were able to engage with the designers in the early stages of the project. Farrat manufactured precision-cut Structural Thermal Breaks from our highest-strength material in accordance with the bespoke requirements of the customer, the BBA Quality Plan, ISO 9001 and ISO 14001.

The Structural Thermal Breaks were supplied with a Certificate of Conformity in accordance with our British Board of Agrément (BBA) Certification.  The BBA standard is a mark of quality and ensures that designers and clients have confidence in a product which is used in structural connections.

Farrat selected to supply Structural Thermal Breaks for The Post Building, London

The Post Building - render courtesy of AHMM Arhcitects

Courtesy of AHMM Architects

The Post Building is a mixed-use redevelopment of the former Royal Mail Sorting Office, located in London’s vibrant Knowledge Quarter.

A combination of carefully curated office, retail and food & beverage amenities, the redevelopment was designed by AHMM Architects and is currently being delivered by Laing O’Rourke. The lower half of the existing frame is retained and a new core and series of intermediate mezzanine levels will be inserted into the centre of its plan. Key structural features include floor to ceiling heights of up to six metres, natural light from all sides and private roof terraces to every floor.

The project targets sustainability ratings of BREEAM Excellent, LEED® Gold and EPC B by incorporating specialist materials and technologies into the design that promote the health and comfort of building occupants and improve building performance.

Farrat were approached early in the construction by the steelwork fabricator to supply structural thermal breaks for use between several connections within the structural frame.

Farrat Structural Thermal Breaks are incorporated into connections to reduce energy loss and the risk of condensation. They are frequently used as thermal insulators within many building applications to improve the energy performance of buildings.

We recommended our high-strength TBK Structural Thermal Break material, as this offers the lowest thermal conductivity and is certificated by the British Board of Agrément (BBA). Farrat is also a member of BRE’s Certified Thermal Product Scheme. Plates of various sizes were precision cut at our UK manufacturing facility and dispatched to site.

The Post Building is due for completion in 2018.

For material properties, design advice and specification details for Farrat Structural Thermal Breaks, please click here.

Farrat Structural Thermal Breaks used to isolate eight-storey steel-framed office block targeting ‘WELL Building Gold Standard’

‘Duke Street’ is an eight-storey office development, which forms part of the much wider St James’s redevelopment – a major 10-year investment programme that will revitalise the renowned central London area with a new public square, offices, retail outlets and high quality residences.

The building will provide 3,234m² of office accommodation, spread over six upper floors with two levels of retail offering 1,034m² of space. The project aims to achieve BREEAM ‘Outstanding’ for its commercial floors, BREEAM ‘Very Good’ for its retail zone, and as a whole, is targeting a WELL Building Gold Standard rating for its shell and core. The latter certification recognises the building has been designed as a healthy and productive space for its future occupants.

Farrat were approached by the Steelwork Contractor to supply thermal breaks to sit between steel connections within the structure. The building’s substructure is formed with concrete, and the main steel frame begins at basement level one, with the majority of the steel frame’s connections via fin plates. The thermal breaks were required to act as thermal insulators within the frame, to reduce the risk of thermal bridging and internal condensation.

Our high-strength Structural Thermal Break material was selected, offering the optimum combination of Compressive Strength and Thermal Conductivity. The plates were then precision-cut to the bespoke length, width and hole configurations required.

32 Duke Street - courtesy of New Steel Construction
32 Duke Street - courtesy of New Steel Construction

Duke Street is due to complete in Spring 2019.

For more information on the WELL Building Standard, download the guide here.

For material properties, design advice and specification details for Farrat Structural Thermal Breaks, please click here.

Farrat high-strength Structural Thermal Breaks used in Manchester Airport’s new ‘Super Terminal’ Balustrade System

Manchester Airport’s £1bn expansion of Terminal 2 is recognised as the biggest single construction project ever to take place in Greater Manchester.

Set for completion in 2020, the expansion known as ‘Super Terminal’, aims to facilitate faster check-in and security checks, as well as a speedier journey through immigration and baggage claim.

Manchester Airport Terminal 2 Progress
Image: Vince Cole

Farrat were approached by the Special Access Consultant to assist with the design, manufacture and supply of a high-strength thermal break that could be used within the Terminal Balustrade System, to prevent condensation and reduce energy loss.

Farrat supplied our highest grade Structural Thermal Breaks as pier bracket backing plates, which were integrated into the hand railing system throughout the Terminal.

Farrat Structural Thermal Break Plate in-situ on balustrade conneciton at Manchester Airport Terminal 2
Manchester Airport Terminal 2 balustrade with Farrat Structural Thermal Breaks installed to prevent cold bridging

Farrat Structural Thermal Break are manufactured from materials specifically developed for use within the building envelope; each of our material grades (Farrat TBK and Farrat TBL) have British Board of Agrément Certification [BBA] and every order is accompanied with a Certificate of Conformance. This means that designers and clients can have complete confidence in the product.

Designers can download specification details for each material grade from RIBA NBS or by contacting our Technical Team here.

Farrat Structural Thermal Breaks used to affix external signage at £27.5M Elekta ‘Centre of Excellence’

Farrat Structural Thermal Breaks used to affix external signage at £27.5M Elekta Head Office

The ‘Centre of Excellence’ scheme is adjacent to and will integrate with, Elekta’s existing UK headquarters in the Manor Royal Business District on a five acre site, combining both its research and development team, and its global product support and administration functions, which will integrate into the new premises. The project was master-planned by architects R H Partnership.

Farrat were approached by the client, to provide a Structural Thermal Break that could be used to isolate the connection between the external signage and the building frame, to reduce thermal bridging.

Farrat manufactured and supplied Farrat TBK plates, which were precision cut to a tight tolerance from the customers’ fabrication drawings. This is the first time structural thermal breaks have been used on a connection of this nature.

As the flagship office scheme in the Manor Royal Business District, ‘Cornerstone’ is a new commercial development that has been pre-let to Elektra, a global leader in the development of state-of-the-art tools and treatment planning systems used across the spectrum of cancer care.

For more information on how Farrat TBK can be used for facades, click here.

For specification details of Farrat TBK, download from RIBA NBS here.

Six storey development project in Glasgow achieves energy efficient design with the help of Farrat Structural Thermal Breaks

Milverton Grange is new build 6-storey residential development located in Newton Mearns, Glasgow.

Developed by Mactaggart & Mickel, materials and design were considered very carefully on this project so that the building remained in keeping with the local neighbourhood, using a brick exterior with timber detailing cladding, shallow pitched roofs with zinc cladding and glass balcony frontages. Special consideration was also given to sustainable design, with the intention to provide high-quality, energy efficient homes that will continue to be efficient throughout their lifetime.

Farrat were approached to assist with the design, manufacture and supply of a suitable thermal break that could be used across several connection types throughout the building envelope, including steel-to-steel and steel-to-concrete. Farrat TBK was selected as the most economical and effective solution to meeting Building Regulations, and was used between columns, outrigger details and balconies to prevent condensation and reduce energy loss.

For more information on using Farrat TBK, click here.

To download specification details, visits RIBA NBS here.

Farrat Structural Thermal Breaks used in the award-winning £2m Cadogan Café regeneration project

Cadogan Cafe, Duke of York Square, London

Cadogan Cafe is part of the major £2m regeneration project in Duke of York Square, London.

The new Café building was designed by NEX Architecture in collaboration with AKT II and sits between several listed buildings opposite Saatchi Gallery, replacing the existing central café with a much larger model.

A significant feature of the design is a Grade I-listed wall, which curves to within 3 m of the café’s lightweight steel frame superstructure. Farrat were approached to supply a structural thermal break material that could be used in pre-cast concrete and fitted to curved stairs.

Farrat manufactured & supplied 25mm Structural Thermal Break plates for this project, using our high strength TBL material.

Farrat TBL is a BBA (British Board of Agrément) certificated structural thermal insulator, specifically developed for use within the building envelope to reduce heat loss and prevent condensation.

For more information on Farrat TBL, read our Design Guide here.

To download the specification, visit RIBA NBS here.

Farrat Structural Thermal Breaks supplied for the new £23.7M steel-framed Facilities Support Building at the Harwell Science Campus

Home to more than 200 organisations, Harwell is a vast world-renowned science and innovation campus located a few miles south of Didcot.

As part of the campus expansion, one of the main tenants, Rutherford Appleton Laboratory (RAL) is constructing a new £23.7M Facilities Support Building. The support facilities will allow researchers to test and commission new scientific equipment, operated by the Science & Technology Facilities Council. The facility will consists of two large open plan halls, each constructed as a single storey, steel braced frame measuring 70 m-long × 35 m-wide.

Farrat TBK 20 mm Structural Thermal Breaks have been supplied on this project to prevent thermal bridging of the steel-to-steel connections and curved façades.

Harwell Science Campus integrating Farrat TBK 20mm Structural Thermal Breaks

To read the full article on the Harwell Science Campus expansion, visit New Steel Construction. For more information on structural design for steel structures, read our Structural Design Considerations here.