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TOPIC: Flashing

General guide to flashing chimneys w/standing seam panels?

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I am embarked upon a magical project to restore a railroad hotel built in 1853. We found a company that fabricated custom panels for us to match those on neighboring buildings. It was originally covered with shakes, but cost and longevity factors led us to decide upon metal. The carpenter doing the work is a genius but hasn't any experience directly working with this type of metal panel. I'm attaching a side shot of one of the 3 chimneys. Two are on either side of the ridge, a ways down. The single one on the older part of the house is centered on the ridge. We want to do this right the first time. Because it's a custom panel, we want to be extra cautious. The panels are ~30" wide, and contain 3/4" ribs on 12" centers. I've been told the centered chimney will be a cakewalk, but that the ones on the slope must be approached with infinite care. I'll be grateful for any information you all might put me onto.
Brian Capouch

11/2/2005
Best to lay the roof out so sheets oare centred on the chimneys as best possible. The sheets will need to be in two parts. Cut the lower sheet to fit the chimney, terminating abbout 12" above the chimney. If possiblb, bend the sides of the sheets up to act as flashing. Form a back pan from flat sheet to extend up the chimney 6" min and up the rooff, 12" min and past each side a min of 6". Cut and fold the upstand back along the side leaving it out an 1" at the bottom. Then install the upper sheetabout 6" short of the chimney and use a foam closure and butyl tape to seal it to the flashing.
Allan Reid
Dura-Loc Roofing Systems, Inc.

11/2/2005
Do you have a sketch to go along with the flashing technique you described?
Guest User

11/10/2005
Sorry. Try going to the NCRA and getting a generic instalation manual.
Allan Reid
Dura-Loc Roofing Systems, Inc.

11/11/2005
Hi Allan, What's the NCRA ? I Googled it and produced these: NCRA National Court Reporters Association NCRA National Campus and Community Radio Association NCRA National Cancer Registrars Association NCRA National Capital Runners' Association NCRA National Casket Retailers Association NCRA National Center on Rural Aging NCRA National Centers for Risk Analysis NCRA National Centre for Radio Astrophysics NCRA National Championship Racing Association NCRA National Christian Radio Alliance NCRA National Coalition on Rural Aging NCRA National College Recruiting Association NCRA National Computer Rental Association NCRA National Cooperative Refinery Association NCRA National Cooperative Research Act of 1984 NCRA National Correctional Recreation Association NCRA National Crab Racing Association NCRA National Credit Reporting Association, Inc NCRA North Carolina Recycling Association NCRA North Carolina Restaurant Association NCRA North Carolina Rivers Assessment NCRA North Carrick Residents Association NCRA North Central Regional Association (of Agricultural Experiment Station Directors) NCRA Northern California Reycling Association NCRA Norwich Clinical Research Associates, Ltd. None of which seem to apply !! I've been looking for detail drawings as well. Thanks Alan Batson, Arlington VA
Alan Batson
registered architect

12/31/2006
Oops -- he meant "NRCA" which is National Roofing Contractors Association. The National Crab Racing Association sounds very interesting though. Hey, I have a manual I can send to you. It's long enough I must mail it though. Email me at [email protected] with your physical address and I will get it headed your way. Todd Miller
Todd Miller
Isaiah Industries, Inc.

12/31/2006
I am having the same difficulty with a newly installed metal roof. The installer is not familiar with proper flashing techniques. Can I get a copy of this manual as well? It would be most appreciated! My address is: 1275 Frankford-Stirling Rd. RR #3, Frankford, ON, Can K0K 2C0
Guest User

5/6/2007
I am wanting to install metal roofing on my home, I want to know how to flash around my chimney, and vent pipes. Can you help me with some pictures or some detailed instructions.
Guest User

5/7/2007
First of all, such instructions should come from your manufacturer. If they do not have installation instructions, that would scare me greatly. Some good instructions can be found on www.fabral.com and www.mtlsales.com for various types of projects. Or email me at [email protected] and I can send you a manual ... I will need your physical address though as it is too big to email. Todd Miller
Todd Miller
Isaiah Industries, Inc.

5/7/2007