The design life of resin roofing tiles is typically more than 20 years, depending on material quality, installation quality, and environmental conditions. Resin roofing tiles produced by reputable manufacturers have undergone UV and freeze-thaw testing; however, the quality of installation is critical—unsealed joints or crooked screws can lead to premature aging. Prolonged exposure to sunlight, high temperatures, salt spray, and acid rain can also accelerate the aging of the tiles and affect their actual service life.
