Posted: 26/09/2014 at 17:38
You could start by cutting through the main stems close to the ground - you will need big loppers and/or a saw to do this. This should cause dieback above. I found I could stand on the ground and yank upwards, pulling the ivy away from the wall it was growing up. I'm sure a hedgetrimmer will only cut off leaves and young stems. Sorry but you might need scaffolding to get it off the roof safely.