Roof/Window leak?

blueflyingtonight

I have a single story extension with a flat roof. After the Christmas storms I noticed damp and a few drops of water coming in where the wall meets the ceiling immediately below the flat roof i.e. immediately below the join between the flat roof and the outside wall. The roof was replaced about 7 years ago and was still under warranty. The roofing company came back, added another layer of felt, resealed and extended the flashing up the external wall. They couldn't find a breach in the roof but did what looked like a belt & braces job. They did point out the poor state of the upstairs window frames immediately above the flat roof and suggested that the water could be getting in there. I have subsequently got a quote for window replacement. Another rain lashing this weekend and more damp appearing so it looks like it isn't the roof. Is it feasible that the water is getting in via a window frame and then running down the cavity and reappearing where the flat roof joins the external wall? If not any ideas on where IO should look to track down the leak?

Thanks

Steve

cattie

Very feasible I would think. Water is very insidious & once in it will quickly seep in & find a way to get out.

anotherbaldrick

The very strong winds recently have shown up leaks in places where they have never occurred before. The water has been physically driven into cracks.