Paving slabs over concrete

23 Aug 2017
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United Kingdom
i have a concrete slab that is solid and doesn't need replacing but the garage on top does. We are replacing it with a log cabin but it's 2cm to wide

Could I lay slabs over the concrete slab to give extra width required? How would I do it?
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if it's wider than the slab that's good, it will prevent water running onto the slab and making the ground beams wet.
20mm is nothing to worry about, as John says + keep the surrounding ground a little lower than the slab.
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You can lay over the top or just add to the side. Lay slabs with a solid bed if laying over the top.

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