If your crawlspace has a 6 Mil vapor barrier installed, then it should be changed out every few years. If your home experiences a large amount of water intrusion, then this will cause the 6 Mil barrier to be moved out of place. Once it is askew, water can begin to leak onto the vapor barrier, carrying mud and debris. Once water is stuck on top; mold and mildew can easily occur which can cause long-term damage to your home. If you find dirt or mud on top of your 6 Mil vapor barrier, give us a call, we can help.