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Exterior Inspections Contains discussions about the exterior portion of a home inspection. This includes roofs, gutters, downspouts, decks, patios, windows, etc.

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  #1  
Old 11/12/08, 10:43 PM
sfalvey sfalvey is offline
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Default Floating flashing or sinking roof

This flashing has about a 3/4" gap between it and the shingles. The disclosure indicates the roof is 17 years old. House is about 1834 with log roofing spaced about 4' apart.

There were no indications inside the house of walls moving or ceilings sagging or in the attic of the rafters spreading.

Thoughts?
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floating-flashing-sinking-roof-img_0219.jpg   floating-flashing-sinking-roof-img_0211.jpg  



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  #2  
Old 11/12/08, 11:27 PM
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Joe Funderburk, CMI Joe Funderburk, CMI is offline
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Default Re: Floating flashing or sinking roof

Isn't the flashing supposed to be under the shingles? Just a shoddy job as far as I can tell.



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  #3  
Old 11/12/08, 11:38 PM
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Default Re: Floating flashing or sinking roof

I would guess there is real step flashing underneath an attempted cover up.

Non professional and substandard to say the least.
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  #4  
Old 11/12/08, 11:45 PM
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Joe Funderburk, CMI Joe Funderburk, CMI is offline
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Default Re: Floating flashing or sinking roof

So it's just an umbrella!



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  #5  
Old 11/12/08, 11:54 PM
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Default Re: Floating flashing or sinking roof

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Originally Posted by jfunderburk View Post
So it's just an umbrella!
Yep!
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  #6  
Old 11/13/08, 12:50 AM
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Carl A. Brown Carl A. Brown is offline
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Default Re: Floating flashing or sinking roof

How many layers of what did they tear off when the new roof was installed?

That would explain the gap. They just did not beat the crap out of it to get it to lay down.



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  #7  
Old 11/13/08, 7:28 AM
Brian A. MacNeish Brian A. MacNeish is offline
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Default Re: Floating flashing or sinking roof

Quote:
Originally Posted by jfunderburk View Post
Isn't the flashing supposed to be under the shingles? Just a shoddy job as far as I can tell.
It would be shoddy job if it was simply a one piece flashing and then it should go under the shingles!!!

A good chimney flashing job would have two parts/pieces:
1) The stepped base flashing under the shingles and turned up at the chimney 5-8" high
2) The counter flashing installed in the mortar joints and turned down to cover the base flashing vertical extension

I don't really see much wrong with that flashing IF it has the base flashing installed. Like Carl said....."they didn't beat it down!"

Last edited by Brian A. MacNeish; 11/13/08 at 7:32 AM..
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Old 11/13/08, 8:30 AM
sfalvey sfalvey is offline
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Default Re: Floating flashing or sinking roof

I wish i had a better photo, but the underside of the flashing edges matches the missing granules of shingles.

I am a little concerned the roof has moved some in the last 17 years.



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  #9  
Old 11/13/08, 8:43 AM
Larry D. Kage Larry D. Kage is offline
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Default Re: Floating flashing or sinking roof

Shoddy...could you see light around the chimney from the attic?

A better method:





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Last edited by lkage; 11/13/08 at 8:46 AM..
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  #10  
Old 11/13/08, 9:46 AM
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James E. Braun, CMI James E. Braun, CMI is offline
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Default Re: Floating flashing or sinking roof

Most likely had a wooden shake roof on before, that is why the flashing is higher.
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  #11  
Old 11/13/08, 9:49 AM
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relliott relliott is offline
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Default Re: Floating flashing or sinking roof

Around here they often just wrap new material around the original step flashing.

Either that or it is so coated with asphalt , you cant see the sheet metal.

Just looking at the second picture for the first time, I am wondering what those 4x4 pieces are ,above the gutter line, on the roof surface?

Last edited by relliott; 11/13/08 at 9:54 AM..
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  #12  
Old 11/13/08, 10:22 AM
Brian A. MacNeish Brian A. MacNeish is offline
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Default Re: Floating flashing or sinking roof

Quote:
Originally Posted by lkage View Post
Shoddy...could you see light around the chimney from the attic?

A better method:


A good diagram with the step/base flashing and cap/conterflashing (local term here)......but does the AHJ allow combustibles like "ice and water" barrier to be installed directly on the chimney?? Usually framing/sheathing members require 1/2-2" clearance.
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  #13  
Old 11/13/08, 12:54 PM
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relliott relliott is offline
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Default Re: Floating flashing or sinking roof

Quote:
Originally Posted by Brian A. MacNeish View Post
A good diagram with the step/base flashing and cap/conterflashing (local term here)......but does the AHJ allow combustibles like "ice and water" barrier to be installed directly on the chimney?? Usually framing/sheathing members require 1/2-2" clearance.
In Chicago it goes up 3 feet,I think
I am next door in Harwood Heights where code is 6 feet.
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Old 11/13/08, 2:26 PM
jkogel jkogel is offline
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Default Re: Floating flashing or sinking roof

Quote:
Originally Posted by sfalvey View Post
This flashing has about a 3/4" gap between it and the shingles. The disclosure indicates the roof is 17 years old. House is about 1834 with log roofing spaced about 4' apart.

There were no indications inside the house of walls moving or ceilings sagging or in the attic of the rafters spreading.

Thoughts?
Scott, if you say these shingles were originally in contact with the flashing, then movement is the only feasible explanation. 3/4 of an inch would be hard to see in the attic without a laser beam or string line. Log rafters may have been replaced with the last roof, in which case simple shrinkage could cause a drop in the roofline. Poor notching, gaps at the ridge, rot from leaky flashing?. You have probably called for further evaluation, which is about all you can do in a normal home inspection anyway.

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  #15  
Old 11/14/08, 10:05 PM
sfalvey sfalvey is offline
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Default Re: Floating flashing or sinking roof

Quote:
Originally Posted by relliott View Post
Around here they often just wrap new material around the original step flashing.

Either that or it is so coated with asphalt , you cant see the sheet metal.

Just looking at the second picture for the first time, I am wondering what those 4x4 pieces are ,above the gutter line, on the roof surface?
Are you asking about the Eave flashing?

This helps drop the snow off before the uninsulated attic melts the snow on the roof to make ice dams. It works sometimes.



Scott Falvey
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