I'm having the roof of my ground floor kitchen re done. Where the pitched roof of the kitchen meets the wall of the house, instead of stepped flashing, the roofer has put mortar flaunching: mortar sat on a bell bead lapping over the soakers. I've never seen this before and to me it doesn't look as good as flashing: if the mortar fails or cracks, it will leak. What do people reckon? Is this standard practice? is it as good as flashing?