The longer the synthetic resin tiles are, the greater the impact of thermal expansion and contraction will be

When choosing roofing materials, synthetic resin tiles have gained increasing popularity due to their lightweight nature, durability, and corrosion resistance. However, in actual use, the thermal expansion and contraction coefficient of synthetic resin tiles is closely related to their length. Especially in areas with large temperature differences between day and night, this issue becomes particularly prominent.

Synthetic resin tiles expand when heated and contract when cooled, which is known in physics as thermal expansion and contraction. Although this is a natural reaction of the material, for synthetic resin tiles, as the length increases, the impact of thermal expansion and contraction also increases. This means that the longer the resin tile, the more obvious its deformation under temperature changes, and it is prone to deformation or cracking of the tiles.

To avoid tile deformation or cracking caused by thermal expansion and contraction, it is recommended to avoid using single pieces of synthetic resin tiles longer than six meters in areas with large temperature differences. For flat roof slopes, a sectional construction method can be adopted, dividing the synthetic resin tiles into two parts for installation. This method not only effectively reduces the stress caused by thermal expansion and contraction but also increases the overall stability of the roof.