This installation manual is suitable only for persons who have experience working with aluminium and related tools. The manual describes a general, standard installation, which must then be adapted to local conditions.
- Ensure compliance with Health and Safety Regulations prior to the installation works.
- The installation may only be performed by trained specialists.
- The length ofprefabricated flashings should not exceed 3,000 mm. Do not make a solid connection to the joints, as expansion and contraction will be restricted otherwise (thermally induced change in length).
- Made-to-measure materials may not be returned or exchanged.
- Please handle all packages with care when transporting (see Storage and Transport).
- All profile lengths must be checked before installation so that you can adjust for potential tolerances before installation.
- Major dirt and saw dust must be cleaned off the fully boarded substrate before installing the metal roof.
- Structural requirements must be taken into account and incorporated during the installation.
- Secure sheet metal parts to the scaffolding to prevent them falling off or being blown away during high winds.
- PREFA small-format products must be installed on a fully boarded substrate. On the facade, a savings formwork can also be used as a substructure depending on the product.
- Check the stability, accuracy and suitability (material compatibility) of the substructure before you begin the installation.
- Any unevenness in the supporting system must always be smoothed out before installation.
- Do not bend folds.
- The PREFA small-format products must be attached to the supporting system using the fittings recommended by the manufacturer.
- The processing temperature should not fall below 0° C.
