Looks like we found the culprit for the leak in the roof of the back stairs – that sycamore sapling in the centre of the picture. Was quite a complex measuring exercise and we were already pretty sure that it was this tree but it was within 6 inches of the measured position of the damp roof. We’ll have to dig it up and repair the tanking sometime but for now we’ll leave it as is as it’s not leaking too much – the bucket is coping well.
