New BBA Certificate sets benchmark for structural thermal break solutions

Published in Technical Specification on: Wed, Jul 4, 2018 9:40 AM

Share this article on:

A prestigious, multi-million pound development on the banks of the River Thames in London makes use of a hi-tech structural thermal break solution which holds what is believed to be a world-leading Agrément certificate.


Riverwalk in Millbank, Westminster, is a striking residential development of 116 apartments and penthouses.



Architects Stanton Williams wrapped balconies around the scheme, creating the need for high performance thermal breaks to limit heat loss from the junctions of balconies with the main building structure.


Schöck Isokorb type KXT was the specified structural thermal break, delivering 120mm of insulation and improving thermal insulation performance by up to 30% in comparison with a standard 80mm range and impact sound insulation by around 50%.


Importantly Isokorb type KXT has British Board of Agrement Certification, achieved following an unprecedented standard of assessment by the BBA. The new certificate incorporates significantly more detailed content on structural stability and performance of the balcony connector.


BBA Project Manager Seyed Tajallifar said: “Collaboration with the BBA has helped Schöck raise industry standards, setting the benchmark for certification of structural thermal breaks in the UK. All future Agrément Certificates of this sort will follow this format."



The BBA, which has certified thousands of building products and systems during its 51 years and is recognised as a critical standard underpinning product performance and acceptance by architects, engineers, developers and constructors, worked closely with Schöck to develop the new level of testing, with certification experts visiting its manufacturing plant in Baden Baden, Germany, and liaising over a four month period.


Chris Willett, Schöck Managing Director, said: “With the BBA we were able to work objectively towards a common goal, that of raising the standard to which structural thermal breaks should be tested and approved in the UK. I firmly believe that, through our collaboration, the BBA provides the world leading Agrément Certificate for thermal breaks.”


The British Board of Agrément was formed in 1966 and offers certification, testing, audit and inspection services to manufacturers of construction products and systems and installer approval. It is also the UK's leading authority on the assessment of insulation products and installation techniques.


Group Editor
Paul Groves

Sponsored by
British Board of Agrément

Quick Links

Company Details

Bucknalls Lane,
WD25 9BA,

T: +44 (0) 1923 665300

Subscribe to our newsletter

Latest Technical Specification News

A systems approach to improving thermal insulation performance in...

As the construction industry and professionals involved in the building design process continue to face new challenges concerning the suitability of building materials, performance...

Sponsored by: A. Proctor Group
Category: Technical Specification


CIBSE clarifies Government's combustible materials ban

The amendment to Building Regulations will come into force on 21 December 2018 and affect buildings over 18, high.  Here, Hywel Davies, Technical Director of CIBSE, looks at...

Sponsored by: CIBSE
Category: Technical Specification


BRE celebrates more than 20,000 BREEAM Assessed Buildings

BRE’s flagship scheme has assessed more than 20,000 buildings in the UK over the last decade, significantly supporting the net reduction of the nation’s CO2 emissions. ...

Sponsored by: BRE
Category: Technical Specification


Latest British Board of Agrément News

New BBA testing regime to ensure excellence in product development

The Product Excellence Programme (PEP) has been introduced to reassure specifiers, designers, architects and contractors that products certified by the British Board of...

Sponsored by: British Board of Agrément
Category: Testing & Certification


BBA and LABC’s rallying call for 100% Hackitt

100% Hackitt – an industry initiative to encourage the government to deliver all of the recommendations contained within Dame Judith's report – has been launched by...

Sponsored by: British Board of Agrément
Category: News


Providing a safe space for whistleblowers

The BBA is a well-known and respected certification body which, through its testing, inspection and approval activity, has been supporting innovation in the construction products...

Sponsored by: British Board of Agrément
Category: News