PVC roofing tiles are made with PVC resin as the core material, to which stabilizers, lubricants, and impact modifiers are added. The purity and molecular weight of the resin affect the tiles’ toughness, service life, and strength, while also increasing the difficulty of processing. The stabilizer formulation, in turn, affects weather resistance and color stability. The proportions of additives are critical to the performance of the finished product, and understanding the composition of the raw materials helps in making informed purchasing decisions.
