Hi, I have a concrete slab attached to our drive way that is in very good shape. The only problem is that the slab has pulled away from the house over the last 20 years and consequently we now get water in our basement during heavy rains. I am looking to either tear out the slab and put in pavers and landscape away from the house a bit, or else I would like to put pavers over the existing slab and turn it into a front porch. My question is would putting pavers over the existing slab (and also over a layer of paving sand) help to stop the water from getting into the basement? This is not a high traffic area. Thanks!