PVC Opstand 45x45 cm Opening system:Single manual spindle with eye 0 openable version with clear 0 openable version with clear glass 1100 x 1700 mm Installing an openable Skylux iDome with PVC curb 20 00 EP with insect screen 1200 x 1200 mm is not an everyday chore Tailor the design to your specific project: choose a sloped version to capture the maximum amount of daylight and distribute it evenly throughout the room you choose flawless and completely watertight installation of your skylight or flat roof window