We replaced an old Velux window with a new Velux window.
We replaced an old Velux window with a new insulated Velux window.
There were very old Velux windows in the roof with internal damage but their frames were in good condition. Therefore we only replaced the glass inside all the Velux windows and they look brand new.
The house’s roof inclination was less than 15 degrees, it was 12 degrees. This caused the Velux to have an interior leak. Velux windows need to have a minimum of 15 degrees advised by the Velux company itself. We changed the slope of the window to 16 degrees and remodeled the metal roof.