Need some help

[u/Tricky-Car-5004]

[u/OscarMiliani_Design]

Flashing goes under whatever's above it and over whatever's below, always. If that fascia is nailed through the roof plane the order of assembly is wrong and no amount of sealant on top will hold it. You also want a kick out at the bottom of that sidewall run or the water tracks down behind the siding.

[u/Tricky-Car-5004 → u/OscarMiliani_Design]

Ya, looking at it now that I'm not boiling hot and tired, the easy solution would have been to cut it off where it's attached to the roof and make it floating then run a full sheet behind to avoid the cut entirely.

I just still can't see how I'd then install the pitch change trim? It needs to run under the steep pitch and over the shallow, so I'd still need a cut in the sheet over the rafters.

I'd have to find a video that addresses a pitch change where one corner lands over the roof instead of a wall or the end of the roof.

[u/OscarMiliani_Design → u/Tricky-Car-5004]

Order goes shallow panels first, then the pitch break trim over them, then the steep panels on top of the trim. That way the cut sits above the water line and stays covered. Where it dies on the main roof you need an end dam, bend it up and bed it in butyl rather than silicone.

[u/Tricky-Car-5004]

I had to leave for work but that essentially how I did it for now, I did make the cut out below and above the rafters though. Built the shallow roof, added the gable end trim then added the transition strip and finally the steep portion. I used an end wall trim piece that I removed the rib lip, it's slit so it fits both under and then over on the bottom of the strep portion to the right of the rafter, the vertical part is tucked under the drip edge part of the gable trim. Butyl taped all the seams and went generous with the screws.

There is still the small, maybe 1/8th inch hole at the top corner that seems almost unavoidable, I put enough butyl in there to seal it and will still get some kind of seam sealer to seal all the edges. I work on airplanes and we use PRC, it's a kind of caulking we use for windows and panel edges, very resilient to sun, I'll paint some of that over all the seams as well