I would leave it be, maybe try to glue the loose stones back in. As long as its not hurting the house its just an aesthetics thing, no easky and/or cheap fixes there.
The existing patio is settling at a different rate than the house, if you tile over it they will still come loose, they will just be stuck to the schluter too. This is an all or nothing situation....I have all the same concerns as above. The schluter dealer and site and experts suggest this product for exterior application (broken link removed).
Unfortunately there are downside risks to every solution. If the patio wasn't structually sound I wouldn't be putting $2,000 in materials on it. There is also a 3' eve hanging over this patio. Water/ snow doesn't get up against the house.
With this option, we protect the existing patio, expecially the part under the house.
Please provide alternatives.
The existing patio is settling at a different rate than the house, if you tile over it they will still come loose, they will just be stuck to the schluter too. This is an all or nothing situation....
I'm confused. Did someone build a house on a patio foundation? Is there an appropriate footer under all that? Don't see any cheap, long term fixes. Looks like you get either cheap, or long term. Not both.
From what I can see, I'd make a cut at the far end to uncouple the patio from the rest of the house, then follow John in NH's suggestion about PT sleepers and decking over top. You could even extend it out into the yard a bit to make it more usable.
Form up 4" out and 4" higher than what is there - pour cement?? Just tossing ideas.
This is a decent way to make it "look good" but it doesnt solve the differential settlement problem.
I just rebuilt my front steps and elevated front masonry porch. It had with similar issues. Its water / freezing getting between the top slab and the perimeter wall. My Issue was water got into the cinder block perimeter wall. I broke out anything soft and replaced it with new block and concrete. The top slab on one end had broken away with the side wall. I used a concrete saw, cut it out , built one course of the side was and poured a new piece of the top slab. I to had a low spot near the place I was cutting out the slab. I put a 2" floor drain, PVC pipe.
It's hard to see in your picture, but you may be able to rebuild the soft spots in the perimeter wall and then pour a 4 inch slab on top of what's there.
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