Let´s say you do not like the petty skylights. You want some nice, large windows to allow most possible sunshine under your roof. In that case you can choose from the roof windows or the dormer windows. Which companies are the best? It depends.
The roof windows or skylights
The roof window is like large skylight. Actually there is no substantial difference between skylights and roof windows, nevertheless skylights usually refer to smaller surface. Both skylights and roof windows are installed aslant dakkapel uit fabriek, to the surface of the sloped roof.
The roof windows advantages
The roof window offers better (and longer) lights in comparison to the directory, dormer window. In some areas the difference can be as much as 40%.
As the slant roof windows are installed directly to the roof surface, no special frameworks are necessary and installing of the roof window is cheaper than the dormer window installation (less material, less work).
The roof windows disadvantages
The roof windows do not add any space to your attic room or ceiling as they only copy the roof.
Also the view from the roof window is little limited in comparison to the dormer window view.
The dormer windows
The dormer windows refer to the vertically installed windows projecting out, from the sloped roof surface.
The dormer windows advantages
Dormer windows increase the space of your attic room or ceiling.
The directory viewing (dormer) window also offers better view as you are closer to the viewed object.
Last but not least, the dormer windows, as they lift the sloped section of the roof higher, improve the safety conditions of your ceiling or attic room (means you will not hit your head when looking out of the dormer window, of course, if you comply with all standard recommendations for the dormer window placement and dimensions.
The dormer windows disadvantages
Unlike the slant roof window, the dormer window faces the direct brightness with smaller surface, because of this it lets less light in.
Also the dormer windows installation is usually more expensive and demanding on planning and sources than the slant roof window installation.