Paving slabs over concrete

[Phil Gunney]

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?

 

[JohnD]

if it's wider than the slab that's good, it will prevent water running onto the slab and making the ground beams wet.

 

[Nige F]

20mm is nothing to worry about, as John says + keep the surrounding ground a little lower than the slab.

 

[^woody^]

You can lay over the top or just add to the side. Lay slabs with a solid bed if laying over the top.