The vinegar-salt mix was applied to the copper sheeting three days ago. It has dried thoroughly and the excess salt grains have been gently brushed off. It also got a blast with canned air. The copper is still a bit light, but if the test piece is an accurate guide, it will darken in the next several days. I like the light green verdigris. It may darken a bit as well. For now I'll leave it alone. Eventually it will be dry brushed with various shades of craft paint, which will add to the age.
There are a couple of shiny copper spots where I think there may have been some glue that didn't get wiped off completely. They are not big and may darken on their own. Time will tell.
It is not very clear in these photos, but the greenish verdigris is very near in value to the green of the shingles. When both are aged, I believe the copper roof and shingled roof areas will complement one another.
Notice the tower roof unit resting on top of the tabs. There doesn't seem to be any hope of getting them to fit together. I believe the tabs will have to be cut off. Haven't decided whether to add some bits of stripwood beneath the roof unit to keep it from sliding sideways or use magnets to hold it in place. I'm thinking having it remain removable may be useful down the road.
The window unit is not glued. It needs to be caulked and painted and won't be installed until the aging process is completed.
I should probably continue working on the exterior of the house, but the staircase is calling out to me. I want to replace the flat bannisters that came with the house with round spindles for a more delicate, refined appearance. The redesigned units will still be removable. Which way will I turn? Stay tuned!