NOT KNOWN DETAILS ABOUT RUBBER INSULATION

I intend on encapsulating the crawl employing a dehumidifier. The assets is near a marsh and therefor the bottom is pretty moist so I are going to be installing a drain and sump method while in the crawl. I used to be scheduling on setting up foam board versus the brick Basis then sealing with a vapor barrier.I am not recommending it- only speculat