The IMPRESS installation approach can be used with both the over-cladding and re-cladding solutions. For the re-cladding solution, it is proposed to remove the deteriorated façade displaying the underlying building structure from which the structure geometry can be identified to direct the new panel design, dimension and form. As such the approach for re-cladding or over-cladding is more or less the same.
The IMPRESS installation approach is:
- Perform a 3D laser scan of the existing building or of the building frame with the old façade demolished.
- Create standard size prefabricated panels for large areas and apply these to the existing facade. These will be standard shapes and can be either 3D printed or with SoA metal/wood formworks.
- Identify the shape and size of the customised panels from the 3D scan and create these using 3D printed formwork. This will be for large areas with sockets (windows, doors, balconies etc).
- Use the Reconfigurable Moulding technology to create prefabricated panels that desire a curved or bespoke surface (e.g. a complex aesthetic finish) and apply these to the building.
To ease the explanation of protocols for installation, a serious game building on intrinsic scenarios is being developed. This allows for interaction with a low-skilled workforce and avoids the need of specialised services. As such, more SMEs can engage with the IMPRESS products and processes.
The prefabricated panels for over-cladding are installed via a combined metallic anchor and adhesive system. Very High Bond (VHB) double-sided tape acrylic adhesives were developed to join substrates of different materials.
Load split between anchor solutions was designed to attain the most environmentally friend configuration, complying with standards. The main advantages of the proposed coupled approach are:
- Fast curing, few seconds are required to place the panel, instead of hours / days typical of epoxy adhesives without temperature curing;
- The panel can be moved within the first application, so the installation process is fault tolerant.