Hey all, i got a 12x28 prebuilt shed that’s starting to show signs of leaking. Its about 12 years old. I see some wet spots on the roof deck from inside. No rotting yet. So im looking at putting a new roof on, as im sure they used the cheapest shingles they could find. Do i tear off and put on new, or can i just repaper and shingle over whats there? Has anyone here done that? I dont see the need to tear off. No rot. What ya think? On a side note, i cant find any evidence of roofing felt under the existing shingles. Go figure!!