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View Full Version : Better parapet coping joint



Ross Neag
06-02-2008, 08:42 PM
It appears that this may be brick mortar and I've seen this done several ways with the longest lasting (although maybe not recommended) usually done with roofing cement. How would you write this up...

Cary Seidner
06-02-2008, 09:11 PM
I wouldn't write that up. It is done correctly. The tile coping should be set in a bed of mortar and the joints should be pointed as shown in your photo. Looks fine to me.

Ross Neag
06-02-2008, 09:23 PM
I just personally have a problem with someone who took the time to do this but didnt have the 10 extra seconds to smooth or tool the joint so there aren't any water collection areas that will shorten the life of the joint. Maybe I'm crazy. I didn't include other pix but it could have been much better IMO.

Cary Seidner
06-02-2008, 09:33 PM
It probably could have been done neater, but it is WAY better than roofing cement. Roofing cement is not UV stable nor is it compatible with tile coping. Within a year it will start to peel away from the coping joint. The only reason you usually see these joints filled with roofing cement is because the roofer has it in his truck.

Markus Keller
06-03-2008, 06:50 AM
It is sloppy but consistent with what is typical. As long as it's solid there isn't much to write. I wouldn't recommend roofing cement. It will disbond after 1 or 2 winters.
From the picture the mortar looks very white. Is it the picture or not? If the mortar is as white as it looks to me, I would wonder what it actually is. Thinset?

Jerry Peck
06-03-2008, 06:52 PM
All colors of mortar are available for that purpose, including white.

That is done as it should be done, but, yes, it could have been done neater.

Did you wiggle the tile to see if it was loose? Most that I found were loose and needed to be removed and reset. Which frequently lead to broken tiles and all kinds of swear words from the roofer now trying to find matching tile.