Loadbearing and SFS infill airspace solutions

The addition of extra storeys to existing buildings, known as ‘airspace’ or ‘top box’ developments – has evolved from a niche concept into a fast-growing sector in modern construction.  With land becoming increasingly scarce, airspace projects offer a smart, sustainable solution to deliver much needed new homes and commercial space in high demand urban areas.

At its core, top box development is a simple idea. However, whilst the concept is straightforward, the execution is anything but.

The Frameclad system can incorporate existing external walls, loadbearing walls and floors and roof structures, making it ideal for this type of ‘top box’ development.

Benefits in Brief

  • Maximises Existing Assets – At a time when the UK faces a housing shortfall of over one million homes, top box solutions that maximise existing assets are not just innovative – they are essential.

  • Strength to Weight Ratio – Our light steel frame loadbearing systems offer an exceptional strength-to-weight ratio, enabling developers to add floors without overburdening the original structure.

  • Sustainability – By increasing density within existing footprints, top box solutions help to reduce urban sprawl, protect greenbelt land and support the creation of more sustainable, connected communities

To find out more about our Top Box solutions, contact the team via email or phone us on +44 1384 401114