Had a guy tell me my control joints were too shallow on a driveway job last Tuesday

I was finishing up a 30x40 driveway in Decatur, IL and I cut my control joints at about 1 inch deep like I always do. This older finisher walks by, stops, and says those joints are gonna crack wrong in about 6 months. He said I need to go at least a third of the slab depth, so for a 4 inch slab that means closer to 1.5 inches. I was pretty annoyed at first because I thought my way was fine and I've been doing this for 7 years now. But I looked at a couple of my older jobs from last summer and sure enough, I noticed some hairline cracks that weren't following the joints. So I redid the cuts a bit deeper on that driveway and it actually made a cleaner line anyway. Has anyone else had their standard joint depth come back to bite them down the road?

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karenhenderson20d ago

Ha! It's funny how those little corners we cut come back to haunt us, isn't it? I've noticed that pattern everywhere, like how I used to skip cleaning my paint brushes properly and then wonder why they were trash later lol.