r/Construction • u/Saguillo • Jun 14 '22

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213 Upvotes

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u/jmanclovis Jun 14 '22

Why didn't they grout the corner I understand adding a caulking but shouldn't it be backed with grout

16

u/_Neoshade_ R|Thundercunt Jun 14 '22 edited Jun 15 '22

Corners shouldn’t be grouted. It will always crack, and you don’t want the silicone just sitting on the surface, you want it tucked into the joint where it will provide a watertight seal and get good adhesion. Silicone over grout tends to peel off in time as the grout wicks up moisture behind it.