My raised concrete porch has had some issues over the years (was a wreck when I bought the house but hidden by mammoth bushes). I'm about to sell the house so I've decided to finally address the porch. There has been a problem with water running toward the house (picture with red arrow is where it seems to run to), which has comprimised the porch. The brick on the front has bowed out and is being replaced as well. There are 2 concrete pads - the larger one has cracked into 3 large pieces but is covered by and awning. The smaller pad tilts back toward the house and water collects in the corner. My question is when I get the concrete pads removed - what type of backfill should go into porch? Is it peafill/peastone? The existing fill just looks like dirt and loose broken brick + plus some mudjack where I had the sunken porch lifted about 5years ago. And should I dig out enough of the existing fill to put some type of tyvek or other foundation insulator and use liquid nails to attach to the foundation?? I'm looking to do this right so that the next owner doesn't have to deal with this expensive nightmare.