I live in a cold region (western part of Canada)We get harsh winter and after having an uncomfortable winter I just recently got all my windows replaced with new energy efficient windows and now in process of picking right kind of door to complete my projectThere are different kinds available like steel , fabric etcwhich one I should go for? Remember I don't care about decoration and other thingsMy core goal here is to save energy and keep house warmerI have Patio and main entry doors to replace.