Laying paving slabs on the patio

Question

I have raised patio by bricks. But there are no slabs, so I would like to lay slabs. Border is brick and it looks that it is filled by soil. Can I just lay slabs directly?

Damian · Accepted Answer

No need some clean stone and it compact with a whacker plate

John · Answer

No you need concrete sand down first then you can lay slabs

Paul · Answer

In common practice slabs should be laid on a bed if sharp sand, or as I usually do slabs down in mortar, a sand and cement mix that's you add water and a plasticiser(fairy will do) to create a workable compound,once laid on the compound it becomes hard and will not move,so to answer the question, no slabs cannot be laid on soil

Sarah · Answer

Unfortunately not you will need about 3-4 inches of scalpings and membrane or it will just sink

Darren · Answer

No! Firstly you must dig out the soil to between 6-9 inches depending on the soil and retaining brick wall. Then you must fill and compact with hardcore and/or type 1 planing's, to the height, leaving enough for the slabs and mortar base to either sit flush with the brick edging or to sit on top. I hope this helps. if you need any more advice, please feel free to contact me on here.

Michael · Answer

Any soil needs to be taken out to fill in with a mot type sub base

Simon · Answer

you need to check the level of your damp proof membrane on outside brickwork all finished paving needs to be a minimum of 150mm below this level to prevent damp inside your house plus really you should have a base of either concrete or type 1 aggregate underneath to prevent slabs sinking 75mm is enough for foot traffic

Dale · Answer

No, you need a 100mm layer of mot type 1 (minimum) compacted with a whacker plate

Chris · Answer

You will need some MOT as a firm base, well compacted and then lay the slabs on a mortar bed to ensure minimal movement.

Patrick · Answer

No, you will need to get some sharp sand and put it down compact it in then lay your slabs on it

Laying paving slabs on the patio

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