Ian Summerscales
Hello Jennifer, from your description its seems that the windows are at an angle? or are they vertical within a sloping roof? and water is coming down off a flat roof. I would suggest trying to divert the water from the flat roof by means of some guttering? if this isnt possible then you could try fitting a piece of timber to the top of the window frame which in turn helps to deflect the water away from the windows. Hope this helps, Cheers Ian