Good installation of insulated panels requires preparation before the material even arrives. The layout of elements must be agreed, the structure checked, unloading arranged and accessories assembled. During work, the most important things are correct support, tight joints and compliant fastenings. At the end, details need to be signed off and surfaces tidied. Speed of laying should not replace checking these stages. The contractor should receive the cladding design, panel layout and the instructions for the specific system. It is worth agreeing details for corners, plinths, windows and roof connections before installation begins. The required fire classifications and the conditions for maintaining them must also be specified. Different panels may look similar but have different rules for making joints.

The number of screws for insulated panels is not determined by a single fixed standard per square metre. Fixings depend on loads, supports, panel type and position on the building. Structural fasteners, stitching fasteners and fasteners for flashings are calculated separately. First, the fixing pattern must be established. Only on that basis can a correct quantity schedule for purchasing be prepared. Two walls of the same area may require a different number of fixings. They differ in height, support layout and wind action. On the roof, the geometry of the roof slope and the edge zones also matter. A single average number does not show where the fasteners should be located.

Installation mistakes with insulated panels often concern details that are difficult to inspect later. Incorrect support, a damaged lock or incorrect screw pressure can cause leakage and deformation. Cutting, storage and the removal of swarf and film are also important. Inspection should accompany the work, not begin only after the building is closed. It is worth checking the structure, fixings, joints and edge finishing in sequence. Excessive spacing, incorrect support width or a static scheme different from the table change the working conditions of the element. A similar problem is caused by using thinner facings without rechecking. The panel may look the same but have different permissible loads.