The Inspector's Journal Forums
Username:
Password:
Save Password


Join TIJ Forums
Lost Password?
Subscribe to TIJ's Newsletter

All Forums > Technical Forums > Roof Forum >

Flashing detail for stone chimneys

Previous Topic: vapor barrier under metal roof? - Topic - Next Topic: Comp shingle valley install? New TopicReply to TopicShare Topic
Posted By  
Olathe, KS
Posts: 261
Joined: Feb, 2004
Currently offline offline
  
Thread Start First Page
[#1] Posted: 06/14/2011 - 8:59:45 PM
Reply with Quote
Hi all, looking for a good detail on properly flashing a stone clad masonry chimney. Did a 2.2 mil house that was newly remodeled/built from the ground up. The roofer just surface fastened and sealed the flashing to the stone on the chimneys and of course it is already pulling away and gapped. I recommended removing the existing flashing on all the chimneys and properly cutting it into the masonry instead of just surface fastening, but haven't had much luck finding a good picture of a proper install except for ones that have access to the block. I couldn't see below the lip of the flashing to tell if they held the stone short of the roof line to where they can make the cut into just the blocks.

Basically looking for a diagram for going directly into the stone in the event it isn't stopped short of the roof line. Can grooves be cut directly into the stone in the event the block isn't accessible? Will try to post pics soon. Thanks in advance.

Kevin Wattenbarger
www.911owned.com
View Profile
Lakewood, WA
Posts: 1550
Joined: Sep, 2005
Currently offline offline
  
Flashing detail for stone chimneys
[#2] Posted: 06/14/2011 - 9:13:20 PM
Reply with Quote
Kevin,
See if this helps.

http://www.chimneyflashing.inf...ing.html

Rob Jones
South Sound Inspections
Seattle Home Inspection

"If you work just for money, you'll never make it, but if you love what you're doing and you always put the customer first, success will be yours."
Ray Kroc
Olathe, KS
Posts: 261
Joined: Feb, 2004
Currently offline offline
  
Flashing detail for stone chimneys
[#3] Posted: 06/14/2011 - 9:19:21 PM
Reply with Quote
Thanks Robert, I have seen that one, but it still involves going into the block itself, which I'm not certain will be an option. It very well may be, but until they pull off the existing flashing I won't be able to tell for sure, so was wondering about cutting directly into the stone with the counter flashing, similar to cutting into brick. Thanks again. Kevin
Kevin Wattenbarger
www.911owned.com
Olathe, KS
Posts: 261
Joined: Feb, 2004
Currently offline offline
  
Flashing detail for stone chimneys
[#4] Posted: 06/20/2011 - 5:41:17 PM
Reply with Quote
Here's a couple pics.

Click to View

63.29 KB

Click to View

65.91 KB

Click to View

92.78 KB

Kevin Wattenbarger
www.911owned.com
View Profile
Chicago, IL
Posts: 10215
Joined: Dec, 2003
Currently offline offline
  
Flashing detail for stone chimneys
[#5] Posted: 06/20/2011 - 6:05:30 PM
Reply with Quote

Yep, that's a mess.

Not sure how I'd go at that one.


Kurt in Chicago

"If I smell it, it goes in the report".............Phillip Smith...2012


View Profile
Lexington, KY
Posts: 2580
Joined: Nov, 2004
Currently offline offline
  
Flashing detail for stone chimneys
[#6] Posted: 06/20/2011 - 6:10:27 PM
Reply with Quote
I don't see many shake roofs. Is it typical to put wood shingles on saddles? Clearly, the code-mandated 3" for flashings won't work.
View Profile
Ashland, VA
Posts: 2938
Joined: Jan, 2006
Currently offline offline
  
Flashing detail for stone chimneys
[#7] Posted: 06/20/2011 - 6:13:09 PM
Reply with Quote
You know, if it was me, I'd always carefully calculate where the flashing turns into the chimney and lay up with brick or block until that moment - laying the counterf-flashing right into the brick under the stone. But that's just me. There's really no other easy or pretty way to flash stone.
"This above all: to thine own self be true." - William Shakespeare
View Profile
State: PA & NJ
Posts: 3423
Joined: Jan, 2004
Currently offline offline
  
Flashing detail for stone chimneys
[#8] Posted: 06/20/2011 - 7:49:02 PM
Reply with Quote
Install a full soldered-seam metal cricket behind the chimney.

Install a counter flashing over the steps, let into a reglet that is cut into the stone. http://www.oldhouseweb.com/blo...-reglet/

Are those limestone or sandstone? I'm concerned about the mortar recipe (and the application of the mortar).


Bill Kibbel, Historic & Commercial Building Inspections - Old House Resources
Olathe, KS
Posts: 261
Joined: Feb, 2004
Currently offline offline
  
Flashing detail for stone chimneys
[#9] Posted: 06/21/2011 - 2:30:36 PM
Reply with Quote
Thanks for the replies. The reglet cut in is what I recommended, just haven't seen it directly into the stone, just the block below the stone then starting stone above it. I assumed that would be okay, but just wanted to make sure there wasn't something I was overlooking with doing that. It looked like limestone, it is all brand new. Looks like they direct adhered it to the block, but couldn't see how far down the stone went in this application with the flashing over it.

The rest of the house had stone veneer with a drainage plane and weeps, which was actually done nicely. But boy, the roof sure was lacking effort. There are a lot of wood roofs around here, just not usually done new anymore since so many have burned off in my area with lightning and wind, as well as spreading from one house to another.

Took quite the scurrying and "Spiderman" efforts to make it all the way up with the pitches (and a lot of looking around to see if anyone saw the awkward moments), but figured there would be some issues with the size of this roof and house. Thanks again. Kevin

Kevin Wattenbarger
www.911owned.com
View Profile
Chicago, IL
Posts: 10215
Joined: Dec, 2003
Currently offline offline
  
Flashing detail for stone chimneys
[#10] Posted: 06/21/2011 - 2:38:17 PM
Reply with Quote
Quote: Originally posted by Bill Kibbel

I'm concerned about the mortar recipe (and the application of the mortar).

[/left]



Yes. It's a mess. Looks like bag mortar smeared on, with lots of capillary edges.

Way to go, Spidey.


Kurt in Chicago

"If I smell it, it goes in the report".............Phillip Smith...2012


View Profile
DeWitt, Mi
Posts: 3522
Joined: Jan, 2004
Currently offline offline
  
Flashing detail for stone chimneys
[#11] Posted: 06/21/2011 - 5:53:10 PM
Reply with Quote
nice effort and good question. The real issue is not the fact it is wrong, but how to remedy
Les
View Profile
Kenmore, WA
Posts: 15714
Joined: Dec, 2003
Currently offline offline
  
Flashing detail for stone chimneys
[#12] Posted: 06/21/2011 - 8:36:01 PM
Reply with Quote
Quote: Originally posted by Les

nice effort and good question. The real issue is not the fact it is wrong, but how to remedy
Deconstruct and redo.

OT - OF!!!

M.

View Profile
Sagamore Hills, Ohio
Posts: 3113
Joined: Dec, 2003
Currently offline offline
  
Flashing detail for stone chimneys
[#13] Posted: 06/22/2011 - 04:13:24 AM
Reply with Quote
Was the home new(er) Kevin?

The mortar looks like it was applied by a 2 year old.

Terry



http://www.hlis.net

This space for let - please inquire within.


Olathe, KS
Posts: 261
Joined: Feb, 2004
Currently offline offline
  
Flashing detail for stone chimneys
[#14] Posted: 06/22/2011 - 05:23:33 AM
Reply with Quote
Quote: Originally posted by Terence McCann

Was the home new(er) Kevin?

The mortar looks like it was applied by a 2 year old.


The original structure was 40 years old, but it has been completely remodeled from the ground up and had the additions to it. Chimneys were all new. Been under construction for 2 years. It was billed as new from the ground up (foundation remained).

Unfinished basement was 3400 sq. ft' with about 7000 sq ft' living area on two floors. Thanks, Kevin

Kevin Wattenbarger
www.911owned.com
View Profile
Chicago, IL
Posts: 10215
Joined: Dec, 2003
Currently offline offline
  
Flashing detail for stone chimneys
[#15] Posted: 06/22/2011 - 07:26:16 AM
Reply with Quote
Quote: Originally posted by hausdok

[quote]Originally posted by Les

nice effort and good question. The real issue is not the fact it is wrong, but how to remedy
Deconstruct and redo.

OT - OF!!!

M.
[/quote


Exactly. No question, it's a do-over.

Of course, that'll never happen.

Cut it and flash it as best one can, then budget for the rebuild in about 5 years.

Which means someone else will smear more bag mortar on it when they go to sell, and call it "tuckpointed".



Kurt in Chicago

"If I smell it, it goes in the report".............Phillip Smith...2012


   
Previous Topic: vapor barrier under metal roof? - Topic - Next Topic: Comp shingle valley install? New TopicReply to TopicShare Topic
Jump To:
The Inspector's Journal Forums © 2002-2013 all topics or replies that are posted on The Inspector's Journal
are copyrighted material of the original author that posted the topic or reply.
Go To Top Of Page 
 
Pick an RSS Feed

The views expressed on this website are the views of the authors and
do not necessarily reflect the views or policies of the sponsors.
© 2002-2013 Copyright DevWave Software Inc.
Find a Home Inspector

Powered By: Snitz Forums 2000