In this hour of At Home with Gary Sullivan, Gary tackles home improvement questions and shares expert advice. He discusses the importance of maintaining your home, not just for its value but for its safety. A caller shares a concern about a scum build-up in their fiberglass shower, and Gary recommends a product to help remove it. He also talks to a caller about the benefits of metal roofing and how it can impact insurance premiums. Additionally, Gary shares tips on how to winterize your home, including advice on battery maintenance and well water treatment.