The LAMILUX Flat Roof Access Hatch Comfort Square guarantees maximum light incidence thanks to its generous four square metres of glass surface. It is ideal for designing roof terraces and opens architectural scope. Thanks to its square shape, it enables the use of spiral or platform staircases, which particularly fulfils the requirements of a purist design. The integrated hydraulic drives ensure a slimline appearance. With an opening time of only around 45 seconds, the element reaches its maximum opening angle of 70 degrees, which offers a high level of comfort, saves space on the roof terrace and ensures sufficient fresh air inside the building. The slightly inclined upstand height with 5°- inclination also supports water drainage from the glass surface.