What product to use to fill in thin cracks in grout between travertine coping stones

[poolowner65]

The grout joints between the travertine coping stones are starting to develop thin cracks in some places. The travertine stone coping is around the pool and spa. What product would you recommend I use to fill these thin cracks in with? The pool was built in 2013. Thank you for your help.

 

[Bperry]

The grout joints between the travertine coping stones are starting to develop thin cracks in some places. The travertine stone coping is around the pool and spa. What product would you recommend I use to fill these thin cracks in with? The pool was built in 2013. Thank you for your help.

Got a farther away picture? It looks like the builder didnt add a flexible expansion joint which may be why the joints are cracking.

 

[ajw22]

You can put a layer of grout on top of the old grout to cover the crack or grind out the old grout and regrout.

Nothing will flow into that thin open area caused by ground movement.

 

[poolowner65]

Got a farther away picture? It looks like the builder didnt add a flexible expansion joint which may be why the joints are cracking.

Thank you. I'm not really sure if they used the flexible expansion joint or not. It looks like mortar with some color and sand added on top. It has survived the Texas heat and ice for11 years, not bad!

 

[poolowner65]

You can put a layer of grout on top of the old grout to cover the crack or grind out the old grout and regrout.

Nothing will flow into that thin open area caused by ground movement.

Thank you. It helps me to know not to worry about water causing any issues right now. I'll put a layer of grout on top in the fall when it cools off.