They don't protrude above the roof by very much, in face they're often set flush with the tiles and have details like glazing bars.
Ahhhh cheers for the info. Such an odd stipulation. The size and black rainwater stuff makes sense, but feel as bit half arsed, like why allow anything but wood windows?
@chrisbmx116 started
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They don't protrude above the roof by very much, in face they're often set flush with the tiles and have details like glazing bars.