When selecting PVC roofing tiles, the key factors to consider are the effective width (880 mm or 1,000 mm), total length (3–6 m or custom), and wall thickness (1.5–2.5 mm). The effective width determines the number of sheets per square meter, while the wall thickness affects suitability; the 1.5 mm thickness is suitable for temporary structures, and 2 mm is the standard choice. Clarifying these parameters ensures accurate selection.