ROOFLITE M6A 78X118 Roof Window. Centre Pivot. Pine Finish. The Nito collection is a range of centre pivot roof windows with special slimline wooden profile and an easy to operate elegant handle that enables passive ventilation in 2 different secondary locking positions. The NITO range is equipped with a ventilation valve that provides optimal background ventilation (ie without opening the window) NITO windows can be installed in a pitch roof from 15 to 90 degrees. Build With Me are Irelands Largest Supplier Of Rooflite Roof Windows. Dont be fooled by copies.