Yard has been rough graded with 'soil' that has pretty much been hardened down and is kinda rock hard-ish now. Can I simply skim a couple inched of fresh loam over the top then lay my sod? Or do I need to roto-till the whole yard, then regrade, then lay more fresh loam?
Pretty sure last time I laid sod I just skimmed a little loam over the top (like 1-2") then threw the sod down and everything was good.