... thick, YX28-205-820(820mm wide), sandwich panel with EPS, ROCK WOOL, PU etc insulation thickness around ... you, pls supply us the following parameter together with detail size: 1)Live load on roof(KN/M2) ... 2.50 mm thick M.S. sheet with galvanisation with necessary downspouts and proper supporting system for gutter ... EN and so on4)Service:We can provide you with a full set of service from quota, manufacture ...