tire blowout

Go to the local sheet metal a/c heating and cooling place and have them cut a thicker than standard thickness piece of sheet metal in the correct size you need to completely cover the under side of the slide out that has been damaged. Use a caulking all around the bottom where the new metal will fit to keep any moisture from entering any holes you may have. Sheet metal screw all along the edges and then use the same caulk to cover over the screw heads. Sealed up slicker than anything. Depending on length and thickness of the sheet metal, maybe less than $30.00 and a box of screws and caulk another $10. If that is what you were asking then that is the least expensive way to fix the damage the the tire may have caused under the unit. I have done it to my trailer and it has held up for years. I had them put a 90 degree bend in the edge about 2 or 3 inches so I could tuck it up under the rubber seal for a more professional look and fit. Might like it enough to do the other side while your at it just in case the other side tire decides to toss a tread.