The proper repair is to replace the damaged shingle and anchor (nail) under a undamaged shingle. Shingles have a warrantee of ~15 years when installed like this. Silicon or tar daubs do not have any warrantee, and probably last 1-3 years.
In your case, I think that you may want to buy some spare shingles and take one and cut it to be able to be anchored under the undamaged shingles above the vent and cover the vent pipe nails while having room for the vent pipe. Sorry I can’t be more help without pictures.
Edit: I went on a tangent below:
There are a couple spots (like when the roof starts from a wall) where there should be undamaged flashing from the wall that covers the first set of nails.
A quick and dirty trick is to cover the shiner with black silicon and then sprinkle the shingle grit that collects in the gutters on the silicon (so it doesn’t decay in the sun, and the repair looks like the rest of the roof).
A less quick and dirtier, but longer lasting fix is to get some roofer fabric and roofer cement, and anchor the fabric under an undamaged single then spread the cement below and above the fabric. It doesn’t look great but it will stop leaks from much larger roof cracks (damaged nail base) for a couple years.
Source: YouTube and buying a brand new build house with a bunch of cracked clear silicon repairs to shiners within the first 2 years.
Gaaah, i just put my first asphalt/bitumen shingle roof on my summer house and while i did the tiling nails properly, i messed up the roof cap - i thought wind would flap them around if i put nails under and so i put nails in corners of each cap tile, then painted them with a good layer of tar. I kind of hoped tar would cover it properly and last too.
I still have plenty of those rectangles left over, probably should just put another layer on top of it, but hide the nails properly.
The proper repair is to replace the damaged shingle and anchor (nail) under a undamaged shingle. Shingles have a warrantee of ~15 years when installed like this. Silicon or tar daubs do not have any warrantee, and probably last 1-3 years.
In your case, I think that you may want to buy some spare shingles and take one and cut it to be able to be anchored under the undamaged shingles above the vent and cover the vent pipe nails while having room for the vent pipe. Sorry I can’t be more help without pictures.
Edit: I went on a tangent below:
There are a couple spots (like when the roof starts from a wall) where there should be undamaged flashing from the wall that covers the first set of nails.
A quick and dirty trick is to cover the shiner with black silicon and then sprinkle the shingle grit that collects in the gutters on the silicon (so it doesn’t decay in the sun, and the repair looks like the rest of the roof).
A less quick and dirtier, but longer lasting fix is to get some roofer fabric and roofer cement, and anchor the fabric under an undamaged single then spread the cement below and above the fabric. It doesn’t look great but it will stop leaks from much larger roof cracks (damaged nail base) for a couple years.
Source: YouTube and buying a brand new build house with a bunch of cracked clear silicon repairs to shiners within the first 2 years.
Gaaah, i just put my first asphalt/bitumen shingle roof on my summer house and while i did the tiling nails properly, i messed up the roof cap - i thought wind would flap them around if i put nails under and so i put nails in corners of each cap tile, then painted them with a good layer of tar. I kind of hoped tar would cover it properly and last too.
I still have plenty of those rectangles left over, probably should just put another layer on top of it, but hide the nails properly.