I want to lay slabs on top of old crazy paving that has been down for years,The area is quite flat and drains well and I dont want to take up the crazy paving,I would like some advise on how to prepare the area and what mix to use.
Thanking you in advance.
If your are inexperienced at laying slabs the best method is,
find the highest point on the existing patio, this will be your starting level.
set up some screed rails allowing a 30mm bed above your highest point,
allow for falls required.
mix sharp sand and cement 4 to 1 mix (put through a mixer)slighty damp.
roughly spread the mix around, then level off by dragging a straight rail
over the screed rails leveling the mix .
if pointing is required use 4 to 1 mix including fed mix and building sand
just mix workable amounts at a time making sure you gauge the mix every time.
Be aware of your new finished level and DPC on your house
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