Installation on screed with adhesive. Installation with adhesive on screed is ideal for exterior cladding of entire vehicle, industrial or urban areas, car parks and garage ramps, since the installed surface is extremely resistant to both dynamic and concentrated loads. In contrast to dry installation, in screed installation the joints between the slabs must be filled with cement grout and expansion joints must be provided in the installation design.
Instructions for installation with adhesive
1. Slab installation
- Proceed with the installation of the slabs using an adhesive for outdoor use following the specific instructions of the chosen adhesive (C2S2 according to EN 12004). To guarantee a more uniform compactness of the bedding, the double coating technique is recommended (procedure for pavings exposed to high levels of stress).
2. Creation of joints
- Open joint installation with a variable joint width of no less than 5 mm and the use of class 2 cement grouting materials (CG2 according to EN 13888) is mandatory.
- Expansion joints with a width of at least 5 mm (with the exception of structural joints) must be used and taken right up to the top of the floor.
- Seismic joints must divide the surface into square or rectangular grids, with a ratio between the sides not exceeding 1.5 m. The grid size may be between approximately 3x3 m and 4x2.5 m.
- Perimeter joints are created at points where the paving meets walls, steps, raised areas, columns etc, through the insertion of compressible material (e.g. polystyrene).
4. Initial cleaning
- The first wash after installing the floor is crucial both for the correct performance of subsequent work and for better maintenance of the floor.