Chimney Flashing On Standing Seam Roof
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Old 06-28-2006, 08:33 PM   #1
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Chimney Flashing On Standing Seam Roof

I am about to have my stone masons saw a reglet for the chimney flashing, how high up from the roof sheathing should the reglet be sawed?

At what angle should the reglet be sawed? Roof will be 1 1/2 standing seam.

What is the best material for the flashing? copper,lead,aluminum, or the steel roofing material?

Thanks,
Kermmonk in TN

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Old 06-28-2006, 08:58 PM   #2
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Re: Chimney Flashing On Standing Seam Roof

It should be stepped (meaning the angle is 180 degrees, i.e. flat), at least 4 inches, preferably 8" above the roof line. The material only matters if it will be visible. If not, copper or SS will last the longest, but to avoid galvanic corrosion, it should probably be the same material as the roof.
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Old 06-28-2006, 09:39 PM   #3
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Re: Chimney Flashing On Standing Seam Roof

I cut 'em in at about 15 degrees . . .

Yeah, - - 4" absolute minimum . . .
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Old 06-28-2006, 10:06 PM   #4
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Re: Chimney Flashing On Standing Seam Roof

I agree with tom, far as your counter I would go with lead and either elastomeric or solarseal for caulk, will be very easy to peen the lead to conformity than trim even at your pan
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Old 06-29-2006, 09:03 AM   #5
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Re: Chimney Flashing On Standing Seam Roof

I never do a straight flashing except at an ampron, at an incline it should be raggled, or stepped with the mortar joint. I also say 4" is minimum, but since we step with the mortar joint, it's usually a bit more than 4".

Why not just metal to match the roofing material? After all it is a metal roof. Steel SS roof = steel flashing IMO. Kynar SS roof = Kynar flashing etc...
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Old 06-29-2006, 09:34 PM   #6
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Re: Chimney Flashing On Standing Seam Roof

Hey guys thanks for the info!

Kermmonk
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Old 01-25-2010, 07:11 AM   #7
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Re: Chimney Flashing On Standing Seam Roof

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Originally Posted by kermmonk View Post
Hey guys thanks for the info!

Kermmonk
I hope this helps? You can usually order aluminum coil stock (19 gauge) from your supplier that will match you new roof.
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chimney flashing on standing seam roof-picture-917.jpg   chimney flashing on standing seam roof-picture-918.jpg   chimney flashing on standing seam roof-picture-921.jpg  
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Old 01-25-2010, 07:55 AM   #8
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Re: Chimney Flashing On Standing Seam Roof

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Originally Posted by kermmonk View Post
I am about to have my stone masons saw a reglet for the chimney flashing, how high up from the roof sheathing should the reglet be sawed?

At what angle should the reglet be sawed? Roof will be 1 1/2 standing seam.

What is the best material for the flashing? copper,lead,aluminum, or the steel roofing material?

Thanks,
Kermmonk in TN
For stone, I'm in agreement with Flash "one way" Master: We typically set a 2x6 in edge on the roof and use that as a guide for the grinder, which yields a 6" reglet height parallel to the roof. For brick, we'd step into the mortar joint.

If the flashing were being installed with the stone (through flashing), I would use lead or 20 oz lead coated copper. If it's not too late, I would strongly suggest doing this with stone, since often there are voids where water can travel behind the flashing after entering near the top. Through flashing will bring this water back to the surface before it gets past the framing plane.

If the stone is already laid, use the same material as the roof.
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Old 01-25-2010, 08:02 AM   #9
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Re: Chimney Flashing On Standing Seam Roof

pretty good info for a hairstylist
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Old 01-25-2010, 08:19 AM   #10
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Re: Chimney Flashing On Standing Seam Roof

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pretty good info for a hairstylist
Just think what I could do for one's head.
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Old 01-25-2010, 12:11 PM   #11
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Re: Chimney Flashing On Standing Seam Roof

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For stone, I'm in agreement with Flash "one way" Master: We typically set a 2x6 in edge on the roof and use that as a guide for the grinder, which yields a 6" reglet height parallel to the roof. For brick, we'd step into the mortar joint.

If the flashing were being installed with the stone (through flashing), I would use lead or 20 oz lead coated copper. If it's not too late, I would strongly suggest doing this with stone, since often there are voids where water can travel behind the flashing after entering near the top. Through flashing will bring this water back to the surface before it gets past the framing plane.

If the stone is already laid, use the same material as the roof.
I would rather install the counter flashing so no water gets in to begin with.
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Old 01-25-2010, 12:39 PM   #12
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Re: Chimney Flashing On Standing Seam Roof

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I would rather install the counter flashing so no water gets in to begin with.
http://www.copper.org/applications/a..._flashing.html

http://www.copper.org/applications/a...s/chimney.html

http://www.copper.org/applications/a...rflashing.html

And this is how you do it - (note: this is not my work):
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Old 01-25-2010, 12:42 PM   #13
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Re: Chimney Flashing On Standing Seam Roof

2006 post--you guys really think he needs to get this done?
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Old 01-25-2010, 12:49 PM   #14
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Re: Chimney Flashing On Standing Seam Roof

That has nothing to do with what we are talking about. The copper looks like it is made to set on top of a steped wall.
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Old 01-25-2010, 03:25 PM   #15
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Re: Chimney Flashing On Standing Seam Roof

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That has nothing to do with what we are talking about. The copper looks like it is made to set on top of a steped wall.
It has everything to do with what we are talking about. Typically, in new construction, the masons lay through the roof plane with brick or block and create those steps. Then the chimney/wall is through flashed as shown and the masons finish the top with stone.
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Old 01-25-2010, 03:27 PM   #16
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Re: Chimney Flashing On Standing Seam Roof

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2006 post--you guys really think he needs to get this done?

OOPS - didn't catch that. The Flash is digging up old threads to self promote. And I fell into his trap.
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Old 01-25-2010, 03:37 PM   #17
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Re: Chimney Flashing On Standing Seam Roof

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Originally Posted by mikeswoods View Post
2006 post--you guys really think he needs to get this done?

OOPS - didn't catch that. The Flash is digging up old threads to self promote. And I fell into his trap.
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Old 01-25-2010, 03:51 PM   #18
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Re: Chimney Flashing On Standing Seam Roof

dam you flash
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Old 01-25-2010, 04:35 PM   #19
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Re: Chimney Flashing On Standing Seam Roof

you two keep it up you both are making yourselves look more and more like children after each post. bickering and trying to one up each other. cmon please.
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Old 01-25-2010, 07:16 PM   #20
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Re: Chimney Flashing On Standing Seam Roof

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you two keep it up you both are making yourselves look more and more like children after each post. bickering and trying to one up each other. cmon please.

We're not children. We're thirteen. Now whatcha got to say?
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