duratech flashing leak

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thinktwicez71

thinktwicez71

Member
Nov 22, 2011
152
Ogdensburg , NY
ok so i thought i fixed my leak but it rained hard here again today and the leak is back.

last time i got up on the roof with a hose , and i soaked the flashing area all the way around for 10 minutes - no leak
then i soaked the storm collar in every direction possible - no leak
then i sprayed the seam up the pipe - no leak

the leak is the equivelent to 1 drip every minute or so when it rains hard, and it always seems to come from in between the support box and the frameing for the support box , and its the side of the support box that would be closest to the roof ( the higest side )

i dunno what else to do , im not gonna lie , its not the best flashing install , seeing as it was on a metal porch roof , and i did it myself , but i sprayed the hell out of it with a hose for 30 minutes , and nothing, rains hard today and drip drip drip.

any suggestions ?
 
boy nothing worse then roof leaks, coat that area and the flashing with the black henrys that should do it, build it up so it cant puddle around the flashing and post a pic if you want more specific suggestions.
 
If you have a moisture meter, you could try and find where it is the wettest, and with leaks, it may not be coming in where the chimney pertrusion is. I don't know your application, but I have seen water come in and travel quite a ways before coming inside. If the flashing is poor, might just have to make it better no matter how much it may suck. Good luck.
 
Show us some pics of where you're seeing the water and the exterior both around it and above it. Like backwoods, said it may not be coming from where you think.
 
k here is where its leaking inside
 

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here is the new endeavor with air kit that the leak keeps dripping on and pissing me off !
 

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Is it possible to see leak under the roof flashing from the interior side? Also, can you post a picture of the outdoor flashing? I'm wondering if your high winds have broken the seal around the storm collar. Did you get the second brace installed yet?
 
i haven't gotten the second brace installed yet (im going to , just haven't had time to get over and buy it yet) , but there was no wind today at all , and yesterday i was on the roof installing the correct duratech locking bands and while i was up there i put another layer of silicone around the storm collar for good measure . i can look up at the ceiling to see where the leak is , but i can't see nothing , i got a fealing its comming down in between the metal and the tar paper below it , and dripping all the way down till it gets to the support box opening. so its not gonna be an easy fix. sucks i got a feeling its gonna be a pain in the ass finding it.
 
Please take a picture tomorrow of the roof side installation and post it here.

I don't have a complete understanding and mental picture of how this pipe was installed. Can you describe this install? What brand pipe? Is this a cathedral ceiling support box? What is above the support box as pictured in the 5th thread post?
 
the entire kit is duravent duratech , dvl telescoping inside , square flat ceiling support box inside , 12' of 6" duratech SS chimney outside.

the flashing is what has me concenered , i wasn't sure how to go about doing it on a metal roof , so i put a bead of cauling all the way around the bottom of the flashing , layed it flat over the metal roof , and used metal roofing screws with the gaskets on them to screw it down , then i went all the way around the flashing with silicone and made sure i didn't miss anything , and i covered all the metal screwes on the flashing with silicone as well.

like i said , ur all prolly gonna look at it and say that looks like chit , but i did it myself , to code , with a permit , and i passed my inspection.

so i know it would not pass ur standards for the flashing install , but honestly i didn't know any better on how to do it in a metal roof.
 
all my roof is on the porch is 2x6 beam , with 7/16th osb board on top , with tar paper on that , with metal roofing ontop of that with about 2/12 pitch
 
thinktwicez71 said:
the entire kit is duravent duratech , dvl telescoping inside , square flat ceiling support box inside , 12' of 6" duratech SS chimney outside.

the flashing is what has me concenered , i wasn't sure how to go about doing it on a metal roof , so i put a bead of cauling all the way around the bottom of the flashing , layed it flat over the metal roof , and used metal roofing screws with the gaskets on them to screw it down , then i went all the way around the flashing with silicone and made sure i didn't miss anything , and i covered all the metal screwes on the flashing with silicone as well.

like i said , ur all prolly gonna look at it and say that looks like chit , but i did it myself , to code , with a permit , and i passed my inspection.

so i know it would not pass ur standards for the flashing install , but honestly i didn't know any better on how to do it in a metal roof.
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Don't worry about o ur standards. The objective is to spot what is leaking and why so that it can be fixed. Metal roofs are unique. They make special flashings for them.

Did you use the low angle (0-6/12) pitch Duravent flashing? Did you have to deal with any standing seams on the metal roof when installing? These are the kind of things we would be looking for. I'm no roofing expert, but Hogwildz installed roofs for years. A picture may help him see something you've missed.
 
i would be very interested to see how the correct way they do it for metal roofs as im going to re roof our entire house with metal roofing in the next year or 2
 
This may have no relation to your problem but, I had to calk all above the roof, verticle and horizontal seams due to a small leak during wind driven rain. I have a cathedral ceiling adapter which may have been why my leak was along the piping inside. For the cost of a tube of high temp caulk it may be worth a try; others had this problem also and there was a thread about it maybe 2 yrs ago.

Jim
 
This is probably not the solution based on your pics of where it it leaking...however, I'd be remiss to point it out. I had a leak whereby water would collect in the cathedral ceiling support box's right, fore corner and drip onto my Endeavor. Turns out the installer forgot/chose not to run a full bead of silicone up the vertical seam on the last run of Class A that penetrated the roof. The rain would run down the seam and bypass the flashing, storm collar, etc., where it would then collect in the support box.

Again, based on your pic, that is probably NOT the case, but check it for shites n gigglz.
 
yes i did use the duratech 0/12 - 6/12 flashing , but the metal roof really stumped me on how to do it. i thought i had a leak before so i put tar stuff on some seams to seal them but nothing. it only happens when it rains really hard.

like i said , with soaking the roof for 30 minutes with a hose point blank i don't get why i couldn't find the leak

ill go take some pics of the "nightmare flashing" job in a little bit
 
I have a leak on a very similar install on a metal roof. I have been fighting it for a year. Only happens when we have a heavy rain and we haven't had a rain like that all December. I think I have it fixed. Here's what I think is happening:
Since the chimney protrusion is near the bottom of the roof run that water is running pretty fast and heavy when it hits the chimney. I think it is running UP the chimney when it hits it and is going UNDER the storm collar. The fix is to caulk under the storm collar. Anyway, I hope that's it. Let me know what you find.
 
ok here is my flashing job , shody i know , but i have no clue how to do that on a metal roof , i know crap is gobbed all over , my main purpose was to make it not leak , pretty was not of my concern.

now by seeing the water puddle there you can see the leak isn't comming from there because it would leak till the water is all gone , well i just took those pictures and it hasn't leaked since the rain stopped last night.

i wonder if the water is getting under the seam from the last piece of metal roof and then leaking down between the roof and tar paper and then falling in between the support box and frameing ?
 

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I have always found the aluminum roof coating to be good at sealing micro cracks in the tar and elsewhere. I assume the aerosol flashing products that they sell these days would do somewhat the same thing.

A gallon of alum. roof coating is pretty cheap. Paint the whole thing and a few inches around it.
 
That water puddle on the screw head is a good indication of the problem. This is the wrong flashing for metal roofs. You want no puddling at all. They make special soft flashing for standing seam roofs. For your roof it looks like part 9449DSA would be the correct item. They also make silicone boots for this purpose.

I suspect that this flashing may always be a problem over time. However, if the roof coating is a good fix to get you through the winter, then it may be a decent temporary solution. PM Hogwildz and ask him to take a look here. He may have some other ideas.
 

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The roof cement is not going to adhere to the silicone> Water will run between the two and find any pinhole there may be.
Typically, the part of the flashing on the high side should have been slide into a slid cut horizontally across the roof panel(s). That was it is not "bucking" water as the water runs down.
The more crap you cake on there, there more damning and problems it will create.
Those screws holding the roofing down should have neoprene washers under then that sandwich between the roof and the screw head when you tighten them down., Be careful not to overtighten them, otherwise it won't seal correctly. Just like overtightening a gasket, which warps the gasket and can create a void in the seal.
Roof cement n metal also will not hold a seal very long. It will break lose due to the expansion & contraction of the metal.
Just thinking.....is there insulation between the metal roof and the decking? The reason I ask, is now with the heat from the stack, you may also be getting condensation on the underside of the metal and it may be running down till it hits the opening around the pipe.
 
Well hopefully it will make it through winter and next summer I will tear o
ut and do a proper install.
 
thinktwicez71 said:
Well hopefully it will make it through winter and next summer I will tear o
ut and do a proper install.
Click to expand...

Well keep us informed when you do it. I may be able to come up and help out. Summer would be a nice ride on the hawg.
 
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