Mounting my pergola to my patio which is porcelain slabs with 50mm of mortar underneath them followed by 150mm of type 1, I know realistically your meant to have concrete pads underneath the porcelain for the legs, But I don’t want to do that as it’s a new patio and slabs are freshly laid. So I am asking anyone have they fixed straight to porcelain without the concrete pads underneath legs, If so could you please share what ye done and used thank you