In order to save the cost of truss and purlin of the roof, Jieli company produce a new products which has four layers.
We call it glass fiber reinforced resin roof sheet.
The upper layers is PMMA material, it is anti-UV protect roof sheet against the sunshine damage.
The second and fourth layers are UPVC roofing material, which is anti-corrusion, heat and sound insulation.
The third layer is glass fiber mesh, it likes a bone of the roof sheet which can help hold the shape even the temperature is hot and the distance of the truss is large.
It is a totally new products.