Closed Cavity Façade (CCF) System - Permasteelisa Group

Closed Cavity Façade (CCF)

©Dirk Lindner

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Over the past 15 years, Permasteelisa Group’s Closed Cavity Façade (CCF) technology has gained international renown for its high quality, durability and sustainability. Today, our CCF is widely used across Europe to create bespoke façades for high-performance buildings.

How CCF technology works

A closed cavity façade system consists of a double-glazed unit on the inner layer and single glazing on the outer, which together form a sealed, non-ventilated cavity.

 

Low-pressure, dry air is constantly blown into the cavity, ensuring it remains free from moisture, dust and dirt.

 

Integrated, automated solar shading enables the high transparency façade to become a dynamic filter for thermal, solar and light transmittance, with live inputs used to optimise performance.

The benefits of CCF

Compared to a traditional, ventilated double-skin façade, CCF:

 

  • Is highly transparent, with floor-to-ceiling glazing providing excellent views
  • Has outstanding thermal and acoustic properties
  • Provides a sealed cavity that remains clean – the double skin is moisture- and dirt-free
  • Is easy and low cost to maintain
  • Creates more efficient buildings with lower embodied carbon
  • Saves on operational carbon for heating, cooling and light consumption
  • Limits solar gain, thanks to dynamic blinds
  • Offers long-lasting performance

Leading CCF since 2008

Permasteelisa Group created the first unitised façade using our CCF technology back in 2008. 

 

Since then, we have pioneered the use of CCF at scale, investing constantly in R&D to ensure our CCF solutions continue to lead the market. To support this work, our manufacturing sites in Europe have been optimised for CCF production, including mock-up facilities, clean rooms and specialist glass cleaning. 

 

Today, Permasteelisa Group’s CCF has been tried and tested across London and Europe, used in diverse ways by architects to create high-performing buildings – from 8 Bishopsgate, 22 Bishopsgate and 21 Moorfields in London, to The Circle at Zurich Airport and MIZAL in Dusseldorf.

Designing with CCF

Our CCF solutions are internationally renowned for their flexibility and ambition. We are proud to have created the tallest building in the world featuring CCF – 22 Bishopsgate in London. More recently, we have designed, engineered, manufactured and installed the first-ever CCF façade in the United States, for the Google 1265 Borregas building in Sunnyvale, California.

 

Recent innovations include specialist bomb-blast resistant CCF and our new Slimline CCF, which is set to revolutionise high-rise city buildings by optimising space, views and sustainability.

 

As with all of our façades, every CCF solution we offer is bespoke. We provide exclusive design assist to meet architectural, client and design demands, and validate each unique solution through mock-ups and testing.

 

If you would like to find out more about how CCF can transform your projects, get in touch with Permasteelisa Group today.

Get in touch

Contact Hans Jansen