Hi guys, looking for guidance on curerent practise for constructing the eaves detail and valleys as my house is currently being reroofed and I need to make sure its going to be watertight. The pitch is 43deg, rosemary tiles, breethable membrane and counter battens over membrane onto rafters. Membrane onto felt support trays. The problem seems to be that the joiner may have the facia boards to high, he says needed for kick on tiles but what is happening is that the counter battens are not going low enough so the first tile batten is having to be fixed directly to the support tray so defeating the object of letting water out. What is correct way to set this out. Secondly the joiner has fitted floor boarding material for the lead valleys direct to the rafters but has laid the membrane underneath. I also cannot now see how battens can be fixed for the tiles other than nailing tiles to the floorboard material. What is normal practise with this. Any help appreciated from roofing community.