With the prolonged rain this winter, noticed a leak from under the eaves, water is running down the wall and splashing against bedroom window. What appears to be happening is that water is somehow getting under the felt and then running back across the eaves board and then escaping and running down the wall. At first I thought it was a blocked gutter as this often fills with moss from the tiled roof but having cleared this out it has made no difference. Have been in the loft but can see no evidence of leak - possibility felt may been split close to gutter - any idea?