concrete tiles

I am building my first roof and have some questions about flashing and ridge tiles. For the abutment (first photo), I plan to use cavity trays with integral lead flashing. For the other side (first photo), I am not sure how to form the flashing. The gap between the ridge and the chimney is 4.5”...

Hi I am using Marley modern concrete tiles and my extension roof abuts the existing house wall so i'll need to install a flashing. Can a hidden soaker be used with a stepped flashing or does the flashing need to go on top of the tiles? I would prefer to use a hidden soaker although if that's...