PDA

View Full Version : Securing the metal cap



dan orourke
11-06-2007, 07:41 PM
..........

Jon Randolph
11-06-2007, 08:19 PM
Looks like 2 sections of heating duct modified to fit the chase.

What happens to the masonry as those screws rust and expand?

What happens when the wire rusts through?


I would recommend replacement with a correct cap. I would assume that there is a concrete cap under that sheet metal that has deteriorated, why not replace the damaged cap with a proper concrete cap.


BTW, damaged caps can allow for damage to the tile flue liner. What did it look like? Even minor spalling of a liner is detrimental.