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TOPIC: Chimney Flashing

Chimneys & New roof

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Hi Everyone, I just searched and found this site. Hope you all can give me some advice. I am afraid it may be too late in asking...we had anew metal roof installed and flashing around the chimney (house 100yrs old) The guy I hired is a 20 man with building and licensed, but I DO NOT think he has much experience with the new classic metal roof. I climbed in the attic today to check and oh there was day light! Told him last thursday he needed to redo some of mistakes. My question is: How do you measure for the flashing? I am going to have it redone, it looks awful! The color green is pretty. Thanks Margaret
margaret sampson

4/13/2008
I really do not have enough info here to be of help. Can you get the roofing manufacturer involved basically to make sure the installation is being done according to their instructions?
Todd Miller
Isaiah Industries, Inc.

4/13/2008
Hi Tim, I called the co. in Sellersburg, In today and a tech guy said to try get him to redo some things as I am right about possible leaks. He did not put more than 20 strips of foam on the entire house..none on top or bottom I mean the foam closures, and some panels have total of 6 screws..He really did not know what he was doing..We used the 30# felt to cover the shingled area and the top of the two story we put new sheeting and then felt but no closures even under ridge cap..I don't know what to do! I am going to tell him either he does different or else. The tech siad it would not hurt the tin to remove screws and redo...we spent over 3,000 for tin and same with labor. I could send you a pic of my chimney if you want> fiffor (margaret)
margaret sampson

4/15/2008
Margaret, You refered to daylight around your chimney. If it is flashed correctly, you will see daylight. But you can see daylight if it is flashed incorrectly. You have two flashings, the roof flashing and the counterflashing. The counterflashing overlaps the other. It is waterproof but not airtight. To keep the daylight from hitting the roof and reflecting back up underneath the counterflashing, you would have to seal it up completely with a sealant. You don't want that on a metal roof. You have expansion and contraction issues to deal with then. It would eventually work the sealant apart. If you are in the attic and can see directly outside through a crack, then you have a problem. If you can't see out and just see light, then you should be alright.
Guest User

4/15/2008
Thanks Wade.
Todd Miller
Isaiah Industries, Inc.

4/27/2008