For some months now my Conservatory Roof has been leaking from what is described by some as the Crown. At first it was only when it was windy and raining. I then had repairers to come and look they noted a panel had slipped down and so righted this but still the roof leaked just one drop every few seconds. Again they visited and managed to move the roof panel slightly more and carried out sealing around the crown area. Yesterday we had slight rain and again the one drop every few seconds. Is there anything else I could suggest they try. I attach a photo the drip comes down below the dark semi circle shown.