I have a customer who installed a 20x30ft area of sod herself for her dog. Her house is being built or finishrd I guess since she lives there. She asked me to core aerate this fall and it was just installed in June. It has taken well but I dont know much about sod. There is no thatch build up so I told her I didnt think it needed it. Also can you roll this sod in the fall before the snow flies to make sure it is flat?