Ottawa Roof Repair says:
August 26, 2013 at 9:03 PM
Chimney flashing does require to be replacement and repaired over time. Using the same flashing from 1960's might be an issue. When you see shingles are overlapped on top of the chimney flashing and its caulked, this can be a sign of trouble slowly but surely. Step and counter flashing is the only way to waterproof a chimney properly with the help of ice and water shield as a back up.
Nombach says:
August 27, 2013 at 2:08 AM
This is just another good picture of how chimney should be repaired and done. Keep it up!
roof repair chicago Roofer911 says:
September 17, 2013 at 10:54 AM
Even with re-roofs, I highly recommend to remove and replace the old chimney counter and step flashing, otherwise this may be the first place to develop a leak in time, unless the flashing is made of copper which can sometimes last a lifetime if installed correctly.