1, the resin tile itself is of poor quality, the surface is not glossy, there are warped feet.
2, resin tile perimeter or accessories, installation rough, uneven.
3, the quality of resin tile is not satisfactory, the water content is more, resulting in shrinkage and deformation.
4、Installation of purlin or purlin spacing is too large, irregular deflection after keel deformation.
5, resin tile force node combination is not strict, displacement deformation after force.
6, thin resin tile is easier to bulge.（Resin tile specifications are too thin, especially to cover the color steel tile, the two materials have different heat rise and cold shrinkage ratio）
