Harvesso has enlarged the product range within 7 wall 16&20 mm and 9 wall 25&32 mm structured panels. With their strengthened structure, these panels offer increased durability and loading capacity with reduced deflection. With their good heat retention values, our multiwall sheets give buildings the best performance in energy efficiency. Our latest multiwall panels are constituted of Z shape 7 walls UV protected and 9 walls structured sheets which offer exceptionally high thermal insulation. It is available in 16 and 20 mm thicknesses with 7 walls and 25-30 mm with 9 walls. These energy efficient sheets provide as low as 1.25 W/m2 K heat transition coefficient which guarantee more than 20% energy saving over traditional twin walls.