So often, more than seeing something flashed correctly, I see how not to flash a chimney, or a roof.
Roof tar does not flashing make! Period. It's great UNDER "stuff," like shingles, or vent covers, and when under it is long lasting. But it is not intended to be installed (my word is "gooped") over "stuff!"
But it does inspire song! Please, feel free to sing along. It's best to bob your head too...
I SEE A RED CHIMNEY AND I WANT IT PAINTED BLACK,
NOT ONLY IN THE FRONT, BUT UNDER AND IN BACK!
I LIKE TO GOOP MY STUFF ON TOP OF EVERYWHERE...
GOOPING BUMPS AND CRACKS, ALL OVER, I DON'T CARE!
NAH, NAH, NAH, NAH, NAH, NAH, NAH,
NAH, NAH, NAH, NAH, NAAAAAHHHH.
Well, you get the idea.
And just in case the gooping on the outside didn't do enough, there is always inside!
Thank goodness for the universal nature of poly foam -- the other white goop!
This poly foam is placed just under the edge of the roof line in that second photo.
My recommendation: it can get frustrating, but never buy a home without a home inspection! Many people would look at this and think it is okay! IT IS NOT! And a home inspector would know that.
I do have fun though. And making up songs along the way doesn't hurt!