The ETA approved Cocoon solution is a lightweight steel construction and has established itself as an easy building solution across a wide range of projects, especially those with complex 3D geometries. Combined with Knauf Exterior Wall with AQUAPANEL^® Technology, many new and imaginative solutions for the building shell have become possible, including floor additions, new builds and structural extensions. At the heart of Cocoon lies a system of prefabricated cold-rolled light steel frames, called Transformer, which can be delivered just in time for final assembly at the construction site, minimising storage and building waste while accelerating construction of the building shell. Attaching Knauf Exterior Wall to this shell has many benefits, including the elimination of drying time and shorter, uninterrupted construction schedules, regardless of weather conditions. The net result is a significant cost advantage compared with traditional systems. Cocoon and Knauf Exterior Wall are particularly suited to modular constructions – such as in the health and education sectors – where provisional buildings are urgently needed for care and teaching.

The impressive load-bearing properties of Cocoon’s steel system mean that extremely lightweight designs can be achieved. This capability is further enhanced by using Knauf Exterior Wall with AQUAPANEL^® Cement Board Outdoor, helping to make further savings in terms of materials, energy and costs compared with traditional methods such as reinforced concrete. Additionally, the slim steel frames and slim profile of AQUAPANEL^® Cement Board Outdoor contribute significantly to space savings.

While these advantages apply to new builds, they’re equally valid for extensions and reutilisations of buildings which – in Europe – account for almost 60% of construction. In addition to being economically and ecologically justified, the re-imagining of an existing structure is a cost-effective way of increasing space and the value of the property. Floor extension is a typical example of how Cocoon – in conjunction with Knauf Exterior Wall – provides an easy and cost effective solution. The low weight allows for floor extensions without any reinforcement measures of the existing structures. The system is especially suited to high rise buildings, where the non-combustibility of materials is mandatory.

Note: Please consult the local partner organisation of Knauf Aquapanel for more information on country-specific building requirements and legislation. Technical advice on this website is based on standard criteria.