PLAZIT-POLYGAL sheets are the optimal solution for light domes, allowing plenty of natural light penetrating the building and creating a pleasant and productive atmosphere for workers while saving on lighting costs. The high level of thermal insulation provided by PLAZIT-POLYGAL sheets helps to save energy when heating the buildings. Several of our sheet-types can also be treated with infra-red radiation filters to prevent overheating in the summer. Because they are light PLAZIT-POLYGAL plastic roofing sheets allow for wide coverage without the need for supporting beams, dramatically reducing construction costs while offering superior strength and durability.