When designing public buildings and open spaces, architects choose Plazit-Polygal multi-wall polycarbonate roofing sheets to allow in light and add color. 

Polygal sheets are easy to fit and to repair, making them ideal for skylights of all shapes, including domes, arches, pyramids and curtain walls, making every space a work of art. Because of their light weight they make it easy to construct roofs over large areas. Their excellent thermal insulation qualities and options for radiation filtering coatings help to keep those areas warm in winter and cool in summer.