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Old 04-27-2012, 06:54 PM   #1
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Re-roofing: flashing question


I am going to re-roof my house this summer. I have a breezeway that attaches to the end wall of the house (see the attached picture). This picture is NOT my house but it shows a similar situation. The present shingles have step flashing AND a sidewall flashing that runs up under the vinyl siding and onto the breezeway roof (see the leftmost line in the picture). I will be stripping off the old shingles but I am not sure how to handle the flashing situation. If I attempt to remove the step flashing and the overlapping flashing, this will require that I remove the siding (at least partially) on the abutting wall. Since the breezeway gable roof rises up the abutting wall, this will necessitate the removal of the siding as it follows the breezeway roof edge. Then I would install the new shingles with new step flashing, new overlapping flashing; then re-install the siding. This seems like it would be the proper method but time and labour intensive.

The other option would be to not disturb the step flashing or overlapping sidewall flashing (that runs up under the vinyl siding). Perhaps cut the old shingles at the point where they meet the overlapping flashing. Then install new shingles right over and on top of the sidewall flashing, using plenty of roofing cement under these end shingles.

My question is: will this second method be acceptable? I just hate the idea of removing my vinyl siding in order to re-roof.

I also have a porch similar to the picture and I am going to encounter similar flashing issues when I re-roof this.

Any ideas would be appreciated. Thanks.
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Old 04-27-2012, 07:05 PM   #2
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Re-roofing: flashing question


i personally would recommend you remove some siding,vinyl is fairly easy to remove and makes it easier to inspect/change flashings and make sure the wrb is installed correctly..[many times it's not]

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Old 04-27-2012, 07:26 PM   #3
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Re-roofing: flashing question


NEVER count on cement or any other liquid as your primary waterproofer.
I would rather see someone re-use the existing flashings if they are installed proper and in reasonable shape than do what you are suggesting as a second option.

Of course ideally you want to properly install new step flashing behind the siding. Proper step flashing behind the siding requires no other flashings or sealers.
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Old 04-27-2012, 10:07 PM   #4
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Re-roofing: flashing question


Replace the flashing…

Removing and re-installing Vinyl Siding (without damaging it) is as easy as it gets compared to other siding materials.

New flashing is as important of a component to a new roof as the roofing itself imo.

Removing and replacing the roofing (yourself) is the “labor intensive” part of the job compared to the R&R of some Vinyl Siding.

Do it right.
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Old 04-27-2012, 10:16 PM   #5
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Quote:
Originally Posted by OldNBroken View Post
NEVER count on cement or any other liquid as your primary waterproofer.


Nothing in a can or a tube will ever "fix" a Roofing, Siding, or Plumbing leak....I don't care what the Pitchman says.
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Old 04-27-2012, 10:18 PM   #6
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Re-roofing: flashing question


Ditto.
I've done it many times without removing the whole piece, as long as it's unlocked there should be room to install the flashing.
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Old 04-27-2012, 10:31 PM   #7
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Re-roofing: flashing question


Quote:
Originally Posted by kwikfishron View Post


Nothing in a can or a tube will ever "fix" a Roofing, Siding, or Plumbing leak....I don't care what the Pitchman says.
Was picking up a piece of equipment and the owner came out asking me about fixing his leaky gutters. He said he got this stuff that was supposed to seal them up but only thing it did was paint his beige gutters black. I just started laughing my ass off when he pulled out that can of flex seal. I've known him for years so it was okay to laugh
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Old 04-30-2012, 07:38 PM   #8
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Re-roofing: flashing question


aw..how am i going to seal that screen door in the bottom of my row boat
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Old 04-30-2012, 11:20 PM   #9
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Re-roofing: flashing question


Id replace the step flashing up the pitch, then leave the long flashing across the top. Their usually in good shape. Use geo-cel 2300 for you tube of sealant. It would be easier for you to step flash right over the old step if its still in modest shape. It'll be easier to get the new in, and thers nothing wrng with double metal
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Old 04-30-2012, 11:42 PM   #10
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