I am planning to replace my existing small hen house with a larger one that will allow me to walk inside. My plan is to purchase a small garden shed package from our local hardware store and just modify it to a 5'X8' house. I live in Northern Ontario where is does get below freezing for about 5 months of the year, however we live on a wooded lot and do not get much wind. I am wondering if I should insulate the house. I am planning on having about 8 or 9 chickens and I will have a source of heat in the form of a red light during the winter months. Should I go without insulating?