Case Study:

Royal Papworth Hospital

Main Contractor

Skanska and HOK

Project Type

A cladding insulation solution to meet the high rise fire & thermal performance requirements using SuperFOIL SFNC.

Project Value

Royal Papworth Hospital exterior insulation by SuperFOIL

The Project

Royal Papworth Hospital is a leading heart and lung hospital, located on the Cambridge Biomedical Campus in Cambridgeshire, England.


Construction of the new Royal Papworth Hospital in Cambridge began in 2015. The 300 bed hospital is designed to combine a highly efficient clinical layout with a stunning external appearance.


With 2,300 rooms, five operating theatres, five catheter laboratories, two hybrid theatres and a 46-bed critical care unit, the hospital is a world class facility for the area.


The old hospital in Papworth Everard was founded in 1918 and is recognised as one of Europe’s leading heart and lung hospitals. The first successful heart transplant took place at the hospital as well as the world’s first successful heart, lung and liver transplant.

The Problem

The unique and stunning curved blue glass cladding specified for the new hospital posed several design challenges. The insulation used needed to provide high thermal performance, be able to conform the curved surface and be completely non-combustible since the building is in excess of 18m. 


SuperFOIL Insulation was approached to provide replacement insulation that would meet all fire safety standards and which could be applied without requiring changes to the exterior or interior design of the building. After careful consideration as to what would be the most suitable solution, we supplied 5,500m² of our non-combustible SFNC insulation.


SuperFOIL SFNC is the only insulation of its kind to be certified by the Building Research Establishment (BRE) as European Class A1 Non-Combustible, which is the highest possible rating of fire safety.

How We Helped

Working hand-in-hand with Skanska and HOK, the construction and completion of the state-of-the-art hospital has been a complete success. Because SFNC is Euro Class A1 non-combustible, it met the required fire safety levels and, as a result, the Royal Papworth Hospital was able to officially open its doors on 1st May 2019. 


Despite the slim 20mm width of SuperFOIL’s SFNC insulation, the product offers exceptionally high thermal performances. Its roof performance is 1.54 R-value, walls have a 1.99 R-value and flooring has a 3.68 R-value. Additionally, SFNC also has outstanding fire performance levels including an official Class A1 ‘non-combustible’ rating which is the best possible rating for ‘Reaction to Fire’. It also ranks in Class 0 for ‘Fire Propagation’ and Class 1 for ‘Spread of Fire’. 


Another quality of SFNC which made it a perfect fit for the Papworth Hospital project is its physical flexibility. It was suitable to be used alongside the unique blue curved glass cladding system that makes the exterior of the hospital so spectacular. 


Managing Director of SuperFOIL Insulation, William Bown said: 

“The new Royal Papworth Hospital is an incredible building that’ll help save lives so we wanted to do everything we could to help the hospital open as soon as possible. 

“Of course, fire safety on large buildings is absolutely crucial and, as the only manufacturer of non-combustible multifoil insulation, we were very happy to help.”

“We’re really proud of having played a role in helping this important building towards completion.”


SFNC is quick and easy to apply and, because it offers an R-Value of up to 1.54 despite measuring just 20mm in thickness, it was the ideal insulation alternative.

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Here are just a few of the comments we've received...

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Loft Conversion

Actually, I bought Superfoil for my small extension and I must say easy to install and it works, room is comfortable better than Kingspan. Now looking at installing an underfloor in my daughter's house. Thanks!

Duncan Walker

Conservatory Conversion

I'm really grateful for all the info you've provided, many thanks. To be honest I didn't think your stuff is as good as it clearly is, and we'll definitely be using it in the future. Can I ask a favour and ask you to calculate two more please?

Carl Bell

Self Build

In the past, I used SF19 for thermal insulation of the roof. I have the best experience. I'm thinking about insulating the house outside wall. As I want to be clear, I will definitely call. Many satisfied customers wish.

Jiri Milfait


We’re delighted with the thermal improvements after fitting Superfoil SF40. The system was clearly and helpfully specified, simple to install and immediately felt warmer, despite this also being the Winter of Beast from the East. It suits our 200 year old house, now heated with a modern, green air source heat pump.

Tim Clements

Senior Building Control Surveyor

Many thanks for all your assistance with this matter, you have been very helpful. The information you have provided has been very useful to one of our customers and I am now more familiar with this type of double fit of SuperFOIL as a suitable method of achieving compliance with The Building Regulations.

Donna Worrell

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