So, my first bit of annoyance with my Polish boys. I'm not sure whether or not I need to be annoyed but I'm hoping Mike and others can tell me…
We spoke on Saturday afternoon before they finished about me wanting to put a velux in the rear roof so said if they were coming back Sunday to work on the small front section sorting battening and then slating up as far as the wall doing as much as they could while leaving space to get a 300mm lead sheet underneath (this is I think my mistake but I'll get to that in a second…), then to go to the back roof and sort the battening out and work out the spacings but only go up a few rows to leave me enough space to retrofit the velux framing in before the slates get that high so we don't need to mess around taking any off.
Unfortunately he either misunderstood or ignored me and went all the way to the wall!!
When I asked him about the lead he said no it's fine, we will use 300mm cover flashing (lead sat on top of the slates) with abutment flashing or single steps.
I've done a bit of googling this morning and while a cover flashing and steps seems to be a perfectly valid way to do it, I am paranoid about leaks in this kind of abutment because we had the same at my old place and had to have it sorted so I would prefer soakers with abutment flashings or single step flashings as I'm concerned with the amount of wind we get here that rain would blow under the cover flashing and give me issues down the line…
My mistaken thinking earlier was that I thought you laid a wide sheet with a bend up the wall all the way down the junction prior to laying the slates then put the step flashings one the top, but I think what I was thinking about was actually soakers.
So, long way to get to the question, soakers/step flashing or cover flashing/step flashings? If the former, I assume that's as simple as sliding the soakers up under each slate as per the diagram below…?
Other than that, it's looking good and hopefully not too far away now, though I'm not sure when he's back due to another job…
Cheers
Mark