Got roof redone, concerns, pics attached

We just had our roof done, but a few things just don't look right..

Silicone caulking around the chimney and bath vent, exposed flashing, and the roof vents are only nailed at the bottom. They feel like a good wind storm will rip them off..

The shingles are the dimensional style so I don't know if they go on much different then 3 tab or what not..

The bath vent wasn't replaced since we couldn't find anything close to that size.

Am I being concerned over nothing here?

Thanks!

Bath vent
Vent pipe
Furnace vent
Roof Vent

 

Thats probably the worse looking caulk job I have ever seen. I would call the contractor and ask that he go up on the roof and explain why the caulking was just squeezed out and not pressed into the crack that was supposed to be sealed. I am not a roofer, but, I can see no way that the caulk is actually sealing out water. Good luck.

 

Well, lets start with the basics - one doesn't seal asphalt tiles with silicone. There are proper roofing sealants one uses, Blackjack is one of the names I know off the top of my head. This could vary by area / building code, but I've never heard of anyone using silicone on a roof.

Although the vents appear to be installed correctly - there will be more than 3 nails in em, the rest will be buried under the shingles, the exposed nails should be caulked over also.

You have valid concerns, get them back to do the job correctly.

 

The caulking job does look bad. They could have used something better- as mentioned, silicone isn't normally used on roofs.

The pvc vent pipe boot looks good- it doesn't normally need to be sealed on the exterior cut edge of the shingles. Many roofers prefer to apply a bead of tar as they lay the shingles that won't be seen. A lot of guys don't use any caulk at all.

The can vents have shingles cut tighter than what I'd normally do, but I don't think it hurts anything the way they did it. 3 nails in front is all I normally use when the vent is cut in after the roof is installed. If I install them as I'm roofing I use 4. One in the top center and 3 along the bottom. No nails go in the sides because that would affect the "ribs" which are there to direct water to the bottom of the louver. Yours will surely be fine. I generally will caulk the head of the exposed nails with polyurethane sealant that is the appropriate color. (exposed nails on shingles get blackjack + shingle grit poured over them).

The chimney has a bad caulk job- it appears there is a preexisting flashing around the chimney that was reused which is fine, provided any nail holes in the flashing were sealed.

 

I managed to get up into the crawl space, there is more nails around the perimiter of the box vents , just hidden by shingles..

My biggest concern is that chimney and the bathroom fan. Is it normal that there is that much flashing exposed on the lower side of the vent pipe?

I'm going to call tomorrow and talk to the owner. Fortunatly I have not paid yet.

Should there be a bead of some sort of sealant on the top of those box vents where the shingles are cut away? It seems like it would be a place for water to puddle.

I guess I'm overly worried since this is my first roofing experiance.

Thank you everyone for your advice and answers. This forum is the best resource for homeowners!

 

Yes, there should be that much of the vent/flashing exposed, as you need space to ensure water will run off and not get beneath the next row of shingles. Water will not puddle - it runs downhill, thus it will flow down and around the vents.

My main concerns would be the type of caulk used, and the lack of caulking on the exposed nailheads.

 

Well I contacted the roofer. It is 30 year silicone caulk, and he claimed thats pretty much the standard anymore as it lasts longer then any type of roof cement.

He said they also used it under the vents and flashing, as well as under the shingles around the edge of the roof..

He apologized for the slopy application, and to call back if it leaks..

I've put a dab of silicone over those exposed nail heads on the vents myself.