They allow plenty of natural light into the building, saving on lighting costs and creating a more pleasant and productive atmosphere for workers.
The high standard of thermal insulation provided by multi-wall sheets helps to save energy when heating the buildings. Sheets can also be treated with infra-red radiation filters to prevent overheating in the summer. Because they are light, these plastic roofing sheets allow for wide
coverage without the need for supporting beams, which reduces construction costs."