adejo92

is that just the sub base and then sand?

Hey, thanks for your reply. So the layer of sharp sand to cover the whole area and then re bed the slabs back onto the patio? The sharp sand alone will be enough to bed them in and then just re do the joins? Luckily, the weeds seem to have grown on the base as opposed to through the base so once its cleaned down, that should stop further coming. Most of it's probably from the grass seed ive dropped over the year!

Hey, thanks. I have been through that website however it doesn't really cover my question. I think my idea isn't the by the book idea, I was just hoping to milk someone's knowledge and experience as to if it would work.

Hello all ?I have a fairly large patio which is slightly raised from the rest of the garden. There literally is not a single solid slab on the whole patio so today i have taken a few up to see what generally lies beneath.Clearly, for all of the slabs to have failed, there must be something fundamentally wrong?My question is; Would i be able to clean up this existing base, of weeds and loose bits, and then fill in the voids with mortar? Once that has dried, i would essentially then have a level solid base to re lay the slabs? (I do have enough room before the patio doors to allow for a new mortar bed and the depth of the slabs) Would that work and last?My original thought was that the whole bed would need to be broken up and dug out before then laying a new sub base etc however obviously if that can be avoided, i would rather stick with my idea as it would be a lot easier and cost effective.Thanks all ?Adam