Evening, about 6 months ago I noticed rising damp in the annex bathroom (single storey flatroof) i found the walls were wet about waist height and it had run up through the floor in the next room causing the carpet to get mouldy. I did place a dismantled shed against the exterior wall for some very rainy months (cornwall) and as soon as I removed the shed from the wall the rising damp went down and got better. But after ripping the annex apart removing plaster/tiles ect it's done some damage and still feels damp loeer to the floor in areas behind tiles ect but not as bad as It was! See attached pics.. appretiate peoples thoughts. In the pics the radiator and pipes are fine (not leaking) and that wall is backed onto the garage the external wall where the shed was up against was the wall on the left.
Dan
Dan