Realized I never got around to a to-do that I've had on my list for, err, a couple of years now. Every so often the vent pipe will take an ice dam, and I'll get water in the house. Finally remembered I needed to do this, nothing like the here and now. So I bought some DAP roof stuff that says it can go on wet. But now I'm realizing: I don't know what I should seal.
The two shingles on either side of the flashing are "loose"--that is to say, I can pry them up, they are not sealed to the shingles underneath them, much less the flashing. Contractor did put a bead of seal around the shingle and flashing, in the back; but that is all cracked now.
Should I just pry up the shingles, put down caulk on top of the flashing, and let the shingles sit back down? Then put some on top of the shingle/flashing interface? Basically: just caulk the heck out of the area?
Do I need to nail down the front of the flashing? It seems to me that it should be open--any water that gets under the flashing should be allowed to flow out. So while it looks bad I think it ought to sit like that...
For the record: when it ice dams, I remove snow from around the vent pipe, and the leak stops. So it's not from someplace else.
The two shingles on either side of the flashing are "loose"--that is to say, I can pry them up, they are not sealed to the shingles underneath them, much less the flashing. Contractor did put a bead of seal around the shingle and flashing, in the back; but that is all cracked now.
Should I just pry up the shingles, put down caulk on top of the flashing, and let the shingles sit back down? Then put some on top of the shingle/flashing interface? Basically: just caulk the heck out of the area?
Do I need to nail down the front of the flashing? It seems to me that it should be open--any water that gets under the flashing should be allowed to flow out. So while it looks bad I think it ought to sit like that...
For the record: when it ice dams, I remove snow from around the vent pipe, and the leak stops. So it's not from someplace else.