Eco-White 10mm Twinwall polycarbonate sheets have been made from recycled polycarbonate, they have two walls (twin wall) and one air cavity. This unique blend of recycled material has produced an exceptionally strong sheet at a low cost. With the same insulation factor as other 10mm twinwall polycarbonate roof sheets, and the ability to resist impact damage this sheet has all the good looks but costs considerably less. This twinwall sheets admits light but not sight, with its "Eco-White" appearance it's a great choice for all types of applications.