Let´s say you do not like the petty skylights. You want some nice, large windows to allow the most possible sunshine under your roof. In that case you can choose from the roof windows or the dormer windows. Those are the best? It depends.
The roof windows vs . skylights
The roof window is something similar to 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, to the surface of the sloped roof.
The roof windows advantages
The roof window offers better (and longer) brightness when compared to the top to bottom, dormer window kosten voor een dakkapel. In a few areas the difference is as much as 40%.
As the slant roof windows are installed right to the roof surface, no special frameworks are necessary and installing 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 or threshold as they only copy the roof.
Also the view from the roof window is little limited when compared 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 or threshold.
The top to bottom viewing (dormer) window now offers better view as you are closer to the viewed object.
Last but not least, the dormer windows, as they lift the sloped organ of the roof higher, increase the safety conditions of your threshold or attic (means you will not hit your head when looking out of the dormer window, of course, if you comply with all standard tips for the dormer window placement and dimensions.
The dormer windows disadvantages
Unlike the slant roof window, the dormer window faces the direct lighting with smaller surface, consequently 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.