SFS launches whitepaper exploring the effects of subframe systems on thermal performance

  • 15 Sep 2021

SFS has developed a whitepaper exploring the effects of rainscreen subframe systems on the overall thermal performance of external walls. 

Future building standards need to be tighter to bring down such high levels of heat loss and energy consumption. While improvements to Part L of the Building Regulations have been mapped out to the ‘Future Homes Standard’, there is still little focus on achieving the quality assurance that would ultimately avoid the performance gap. 

Energy efficiency can only be tackled by understanding the thermal performance of rainscreen walls, where building fabric heat losses are most prevalent as external walls are responsible for 35% total heat loss of a building. Part of that process for understanding how much heat loss a building has is finding out its U-Value.


Calculating a U-Value

When doing so, take into account where insulation is penetrated by the thermal bridges of a rainscreen subframe system.

The relationship between the design and realisation of a building is key for greener building projects. Only by having the right specification for the rainscreen subframe can guarantee that external wall construction will perform as intended.

The company has been working on rainscreen subframe solutions that provide key energy saving contributions to any project featuring cladding. SFS Thermal Solutions makes this process much easier, operating across the wide range of NVELOPE® rainscreen subframe systems.

SFS Thermal Solutions utilises the proven technology of Project Builder Thermal to enable any project to be optimised for performance and budget. 

David Fraser, Business Unit Manager at SFS UK, comments: “The careful selection, specification and installation of an optimal thermally efficient subframe system, supported by the appropriate thermal modelling is crucial.

“At SFS, we are here to help drive that change to secure the future of our industry. NVELOPE® system can be optimised to your project to achieve the thinnest build-up and make your building greener.”

To find out more about SFS’ NVELOPE® system, download the whitepaper here


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Phone number : +44 (0)330 0555 888
Email : [email protected]

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