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meowracer

Why would deck tiles be coming loose?

meowracer
16 years ago

I have yet another question. This forum is such a valuable tool - thank you to all who contribute! We have a cast stone deck. Lately, the stones are coming loose, making at the least that hollow sound and at the most, popping when walked on. Every day, we find one or two new loose ones. The concrete under it was poured in May I believe and the stones put on shortly thereafter. Help!! We wonder if the concrete underneath has begun to sink, or maybe the mortar not properly mixed? I wouldn't worry if it was a tile or two but given that there are quite a few, and we find more almost on a daily basis, it seems like the situation has trouble written all over it. Ideally, we'll find out that it is ok to leave them alone, but the tile guy (he did not install this product) said it must be changed. Any advice or words of wisdom is appreciated :)

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