In modern construction, maximum access to daylight and the effect of large glazing, which visually enlarges the space, are increasingly important. That is why investors are keen to choose combinations of two roof windows installed side by side, providing panoramic views and bright, open interiors. For such a solution to be not only aesthetically pleasing but, above all, durable and safe, it is essential to use the appropriate flashing. FAKRO DUE combination flashings create a coherent, uniform and tight installation of two windows, guaranteeing protection against water, snow and wind, regardless of the roofing material.