i have a bay windowed terraced house.Just finished raining quite heavily.Ive noticed the rain loudly dripping onto the bottom window sill.Went outside to investigate,the flat piece of roofing that covers the bay window,is dripping quite heavily,although i only have guttering that runs along the line of the roof,if that makes sense.Some of my neighbours have guttering that runs along the perimiter of the bay window aswell.Could the recent snow have caused some problems ,maybe,although i have no sign of water ingress yet.Any help would be very much appreciated .THANKS,DAVID