On a single story rear extension of a terraced house where you have the downpipe from the main roof guttering; would you expect the rain water to dump out of the downpipe onto the new lower roof, trickle over the new slates then go into another gutter then along to another downpipe into the ground/drain or would you expect some kind of linking pipework between the two gutters?
I had these in my old place and in my current and it seems to be the normal way of doing it. Bit of an issue in my current place though in that when it is windy and raining it dumps a load of water on the windowsill and the wall which I think may be causing some damp.
On a single story rear extension of a terraced house where you have the downpipe from the main roof guttering; would you expect the rain water to dump out of the downpipe onto the new lower roof, trickle over the new slates then go into another gutter then along to another downpipe into the ground/drain or would you expect some kind of linking pipework between the two gutters?