My roof is leaking

[Jack_Toepfer]

Hi All,

New garage addition has a leak. Pic of where the water is coming from the seam on the wall. That’s (2) 2x6 attached to the pre-existing wall supporting the roof in the other pic. Where the new build meets the existing structure there is some flashing under the gutter and some siding work done. Is it done properly?

As you can imagine, I don’t want to take down a ton of brand new drywall to investigate inside the garage if the problem on the roof is obvious to someone on here. It rained a little bit today, but nothing crazy. The puddle was a heartbreaker when I opened the garage this afternoon. I’m supposed to be finishing up the electric and finishing drywall this weekend...

Thanks in advance guys. I’ll call the builder if it’s something that’s going to be pretty involved, he made a good buck on the build and I think he would stand behind it.

 

[Mr. T]

Flex Seal



Just kidding... I’m sure someone more helpful will be along soon.

 

[NeubCont]

Hello
From your pix some further info is needed.
What part is the new addition?
You have a picture circled in red?
What is that showing us?
My quick assessment is that they never extended the wall flashing from the old to new.

 

[joey1320]

This is incorrect. This "flashing" isn't doing anything but making a "slide" for the water to get into and behind where it shouldn't go. That piece should be an "L" shape, it clearly is not. There should also be some type of flashing/channel behind the siding and trim work.

Considering this is almost common sense, I wonder what other ****** things they did.

 

[spudley]

The siding and fascia board should have been removed to allow metal step shingle flashing on each shingle. Then the fascia trim should have an outward bend over the shingles, not tucked back under the fascia. That J channel under the siding is a problem.

 

[meboatermike]

It is hard to tell from the angle that the circled picture was taken, but that crack area looks suspicious to me -- I question if it is flashed correctly from what can be seen. Can you take a picture 90 degree to the joining and one from a little towards the front? It almost looks like water could be being directed in between the two areas by that hanging down folded over piece from under the roofing.

 

[NeubCont]

That was my point exactly.
Flashing? What if any? And from old wall extending to new wall?
Agree on calling the contractors who did the work.
But if they aren’t roofers, hard to say they can fix it because it would have been a easy install already

 

[Git]

Where is the water supposed to go - that trim board is blocking the end of the J-channel

 

[NeubCont]

Not seeing the j-bead as the problem.
Wall flashing in transition is most likely the issue

 

[spudley]

Where is the water supposed to go - that trim board is blocking the end of the J-channel

That's the right way. Note the edge of the tin shingle flashing on the tab right above the corner.

 

[Jack_Toepfer]

Thank you all for the help so far. The new roof is the lower of the 2 in that picture. I’ll get a better picture tomorrow, and probably some video.

I agree, calling back the contractor may not correct the problem, thinking I’ll just call a roofer.

 

[NeubCont]

Spudley-Not saying that your picture is not right.
The OP problem looks like a transition issue from one wall to another.
In the roofline.
I would bet the flashing from original roof ends and the new roof flashing starts creating a gap/space where the leak occurs.

 

[NeubCont]

I would call the contractor.
I assume you have some kind of warranty and would go that way first.

 

[NeubCont]

By the way,
Is the roof decking OSB? Not plywood?

 

[Jack_Toepfer]

By the way,
Is the roof decking OSB? Not plywood?

Roof and walls are OSB, 2nd floor is plywood t&g

 

[wrenchguy]

can o worms.

 

[Jack_Toepfer]

can o worms.

You’re tying my stomach into knots.

 

[Kaizen]

That whole wall where the circle is needs step flashing all the way up. Siding should be removed so it can be checked. Basically they did not install it and tie in to the house. Not a huge deal to fix.
However I’d like to see why there is a big hole and what’s behind that coilstock. If you paid someone have them come back and do it right.


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[Jack_Toepfer]

I’ll be in touch with the owner of the company tomorrow. I’ll send him the pics and hope he makes it right.

 

[wrenchguy]

That roof line framing and the wall framing should be on plane, then the whole run should be correctly step/baby tin flashed, then some kind fascia correctly installed on that gable rafter, lastly siding with corner correctly installed so everything sheds down roof without interruption. NO BUMPOUTS! Correct component install sequence is important in this area. good luck with ur project.

 

[matt_i]

Another angle would be helpful, looking up at the lower edges of the shingles, to see the flashing "steps".

Agree with others that several things are going to have to come apart.

"Roofers" are classically lazy and or underbid taking out the step flashes and putting in new as they work, there are many videos out there where they simply reuse crusty, holey metal flashings because the correct way would involve removing part of the siding and bending new metal. Homeowners are classically looking for the lowest price and don't necessarily know the technical details, iow they should put this in their bid package.

I think once the issue is located it will be obvious.

 

[readhead]

How did someone look at that and think “that will work” and walk away. I agree that it all has to come apart and be redone. Either the existing fascia needs to be cut back to plane with the wall or build out the base of the side wall to plane with the fascia. I hate to see siding come right down to the roof. It makes reroofing difficult. If that is the best the contractor can do I’m not sure how well he can fix it but at least have them come look.

 

[Kaizen]

I’ll be in touch with the owner of the company tomorrow. I’ll send him the pics and hope he makes it right.

Look up step flashing so you know what it’s supposed to look like when you talk to him


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[Jack_Toepfer]

I was a laborer for a while, been on many roofs... I knew it didn’t feel right, but I haven’t done that stuff since I was a kid.
The step flashing looks like I would have expected here.
They will be at my house on Monday or Tuesday and I’ll ask why they didn’t do any step flashing and see what response I get.

 

[CJ7VFR]

How did someone look at that and think “that will work” and walk away. I agree that it all has to come apart and be redone....

Unfortunately, this is the way things are done now. The real pro's, who worked under long time roofers, or any other trade, for years, learning their craft, are slowly retiring, and once they are gone, so is the expertise along with them.

The days of knowledgeable craftsman is gone, replaced by non-English speaking worker bees who, this week are putting up a roof, and last week were mowing lawns.

I see it all the time around me. I can't even remember the last time I heard an entire crew of people who spoke English. Now it is usually the head guy who speaks all languages telling the worker bees what to do, and then that guy leaves the job site, making it impossible to talk to anyone else on the crew about what they are doing.

Jim

 

[Jack_Toepfer]

I’m in Buffalo NY, everyone who worked on the job grew up within 20 miles of here.
I’m hoping it was an oversight that they’ll make right.

 

[CJ7VFR]

I’m in Buffalo NY, everyone who worked on the job grew up within 20 miles of here.
I’m hoping it was an oversight that they’ll make right.

That is good. At least they are all close by. Give them a chance to come out and make it right, and let us know what happens!

Jim

 

[stonesg]

I'm a rank amateur and that tie into the existing structure does not pass the common sense test.

Water will clearly be running down the roof and under the gap at the end of the board and more will be splashing up into the vertical gap.

That appears to be an odd way to roof the addition. Could the new shed roof have not started higher up with more pitch and wrap around the corner with a little eve?

 

[BD1]

Call contractor and roofer . Have both meet at same time for consultation.

 

[Jack_Toepfer]

It’s been raining here, so I haven’t gotten out to the roof for more pics.
Friend of mine got out there while I was at work, said he can see the tyvek from the original build where the roof meets the wall. I will encourage the builders to put step flashing in, at least, and see where it goes from there.

 

[Jack_Toepfer]

I hope this is temporary until they can buy some flashing. I don’t even mind if they wait for nicer weather.

 

[LS6 Tommy]

That J channel under the siding is a problem.

Do you mean the installation of the J or just the fact that it's there? All siding jobs I've ever seen had it on a sloped roof like that.

Tommy

 

[spudley]

Do you mean the installation of the J or just the fact that it's there? All siding jobs I've ever seen had it on a sloped roof like that.

Tommy

The installation. Post 8 had it right. Not too many other ways to terminate vinyl siding on a slope other than using water catching J so it should have free drainage.

 

[blkhonda1991]

the addition/existing roof tie in is always a critical detail...i would have either matched the slope and tied directly into the existing or held the new down low enough to allow for proper flashing between the new roof and existing wall. how did the builder address the joint under the old roof to new roof?

 

[joey1320]

I hope this is temporary until they can buy some flashing. I don’t even mind if they wait for nicer weather.

So the dude showed up and ran a bead of caulk and left? Did he(contractor) give you any more information?

Them caulk slingers are a dime a dozen.

 

[jhelrey]

^ And it was raining!

 

[Bert_]

I am a firm believer that a building should shed water with out any caulk. It is a temporary fix for missing or wrong flashing.

 

[rlitman]

I am a firm believer that a building should shed water with out any caulk. It is a temporary fix for missing or wrong flashing.

Totally agreed!

 

[Kevin54]

Easy fix....but it will result in removal of siding, shingles, and fascia trim to flash it properly. A good full days job, maybe two.