Request a Quote

Case Study: The Bragg Project

SIPs Extension in a Flood Zone

Location: Sussex, England

Materials: Full 194mm Sips Kit

Project Type: Demolition and replacement of existing extension with SIPs build

Unique Challenge: Building in a flood zone with complex, multi-level design

The Story of the Project

Our client’s project was the demolition of an existing extension and the erection of a new SIPs extension.  The complication was that the build had to include substantial flood protection works due to its location close to a river.

Sips Eco Panels were contracted to provide Building Regulation drawings and supply and fit upgraded 194mm Sips Eco Panels for the walls and roof.  By rendering the external skin off of battens fixed to the 194mm SIP wall panels, our client achieved a u-value of 0.14 W/m2K to his extension walls.

The Design & Technical Considerations 

The extension included a multi-level Sitting Room, Conservatory, Kitchen, Porch, and Utility, all designed to harmonise with the existing building and new foundation levels. Due to the site’s uneven ground levels and the introduction of a new flood defence wall, the design had to accommodate several different floor heights – adding both complexity and the need for precision. 

SIPs were chosen not only for their structural strength but also for their rapid on-site assembly, which was critical given the unpredictable weather conditions and limited access.  

Construction & Flood Protection 

The build was executed in tandem with the construction of new flood defences. This required close coordination between our design office, the groundworks team, and the SIPs erection crew. The SIPs system allowed for swift erection without compromising on performance, even in the face of challenging winter weather. 

Our team’s attention to detail and adaptability helped ensure that the structure met all performance, timing, and flood resilience requirements. 

Client Feedback

Our client was delighted with his experience of both the Sips Eco Panels design office team and the frame supply and erection, scoring both top marks.

He said: “The project design brief was very demanding, involving a multi-level extension which had to be precisely matched to unusually complex engineered foundations. The support from the design office in overcoming the problems which arose was exemplary.  Moreover, when it came to erecting the frame, this was done on time and with commendable commitment given that it was undertaken in the worst of weathers.”

Why SIPs Were the Right Solution 

SIPs offered the ideal combination of thermal efficiency, structural integrity, and speed of installation. In a flood zone, time is critical – and SIPs helped reduce the build window without sacrificing quality. The precision manufacturing also allowed for exact alignment with complex foundation work, making them an excellent choice for this bespoke extension. 

Thinking of Building with SIPs?

If you’re considering an extension, self-build, or energy-efficient upgrade – even in a challenging location – SIPs Eco Panels can help. Our team will assess your project and provide expert advice and a free, no-obligation quote. 

Contact us today to get started 

Download the PDF Request a Free Consultation

Why sign up for our newsletter

  • Keep up with advancements in the SIPS building system
  • Be the first to see new case studies showing what's possible with SIPS
  • Find out how to build faster for less money without any compromises