Buying a metal roofing tile is worthwhile when its format, coating and fixing method suit the particular roof, not when the sheet alone is cheap. Before deciding, check the cutting plan, which shows the actual material use, where overlaps fall and which pieces must be cut. Also compare the full delivery scope: accessories, flashings, fasteners, transport and the installer's work. For a renovation, assess the condition of the roof structure and substrate. Any saving should come from good fit rather than from omitting necessary layers or details.

The choice between metal roofing tiles and bituminous shingles depends primarily on whether the substrate and roof geometry meet the requirements of the specific system. Shingles require a level, stable deck of boards or panels, whereas metal tiles are usually fixed to a designed batten grid. Before deciding, check the scope of substrate, underlay and labour in the offer, not just the covering price. Also compare the cutting plan, permissible pitch and how valleys, dormers and service penetrations are detailed. Only a complete comparison will show the difference between the options.

Assessing the quality of a metal roofing tile is best based on how well the specific variant matches its intended use, not on price or the number of warranty years. Check whether the documentation clearly identifies the model, thickness, type of substrate and coating, and whether it can be linked to the delivered batch. Before ordering, ask for the data sheet for the chosen product, the installation instructions and the warranty terms; with a sample, examine the wave geometry and the overlap edge. Also check the complete set of accessories and its suitability for the roof pitch, substrate and ventilation.