We don't get much sun back in the woods where we live ,I noticed there are some fungus looking mushroom things growing on some of the ends of the rounds.Will this destroy the pile eventually the piles are stacked and going on two and a half years old off the ground about four inches and just the tops covered.The piles are facing south but get little sun,the rear obviously north not alot of mushrooms ,but just wondering if anyone had a similar experience. Thanks