Critter-Proofing my AS

[mopariac]

I have gone through every seam and void under and around my Airstream and feel confident that not even a sugar ant can enter...except for one area...under the steps. When I am camping and have the steps out, there are two tracks (1/2" wide by 18" long) that the steps slide on that are open to entry by critters and is located only 5 feet from my kitchen sink. You can look into these openings and see the area within the banana wrap. The area where the sink pipes and fresh-water lines go down makes it accessible to the interior of my AS. Anyone have any fix for this issue?

[Wayne&Sam]

I've filled cracks like that with spray foam. It will breakdown and have to be redone at some point, but it's easy to do.

[mopariac]

That's an excellent idea, I didn't even think of that. Do you think it will fill enough of the area to block off the sub-floor/banana wrap area around the steps? I'll pick up a couple of cans today. Thanks for the tip.