No doubt a commercial roof is your first line defence from cold-weather months, and preparing your roof for fall ensures that you will be prepared for winter. If your commercial roof is not ready for this, it may cause significant damage. The roof membrane shrinks in the cold and expands in the heat. Because of these fluctuations, you have to maintain yourself properly. To keep your commercial roof safe and leak-free during the cold weather months, you should do basic maintenance tasks.