I have a 30 x 15 stick built shed with composition shingles over 1/2" sheathing. I would like to take 12 lineal feet off the end, remove the roofing and sheathing and install corrugated plastic to turn it into a greenhouse. How do I make that joint between the remaining composition roof and the corrugated plastic weatherproof?
This is what I'm going to try. Any comments would be appreciated.