Is the Miracle Mat waterproof on the backside? I'm not as concerned about my 5er... it will have the standard vinyl floor. But, I may want to purchase one for my Scamp which has carpet
. I still have several campouts planned with my Scamp and am still very concerned about taking care at the door area. IF I like the Miracle Mat... it would find a new home in the 5er. Inquiring minds want to know...