iWindow Opengaand Platdakraam Complete Set 110x170 cm Type of Glass:Clear 55% in combination with a 55% in combination with a double walled clear polycarbonate skylight Installing an openable Skylux iDome with PVC curb 20 00 EP with LED & insect screen 0800 x 1300 mm is not an everyday chore energy efficiency This high quality flat roof window is available with HR++ (1