Exposed fastener metal roofing is a popular choice because it’s cost-effective and relatively simple to install. This roofing type uses screws or nails with rubber washers that sit on top of the metal panels, which means their fasteners are exposed to the elements. Because of this design, moisture can sometimes find its way under the panels, making ice and water shield an important consideration. Ice and water shield is a self-adhesive membrane that acts as a moisture barrier beneath the metal roof panels, preventing leaks caused by ice dams, wind-driven rain, or melting snow. This layer is essential in colder climates or areas prone to heavy snowfall because it provides an added level of protection where water is most likely to infiltrate. Without correct application of this shield, the metal roof could allow water to seep through around the fasteners or panel seams, leading to costly damage over time.
To check if the ice and water shield is doing its job in an exposed fastener setup, homeowners can start with simple visual inspections after severe weather. Look for any visible signs of water staining inside the attic or on the ceiling, as this can indicate seepage. On the roof, check for loose, rusted, or missing fasteners, which can compromise the membrane’s effectiveness. It’s safer to avoid walking directly on metal panels if you are unsure how to do it without causing damage. If you suspect issues or see signs of wear, it’s a good idea to call a professional roofer to verify if the correct membrane was installed and is intact. When consulting a contractor, ask questions like, “Can you confirm the type and placement of ice and water shield under my exposed fastener metal roof?” and “How do you ensure fastener penetration points remain sealed over time?” These questions help ensure the contractor understands the unique waterproofing needs of exposed fastener systems, especially regarding warranty compliance and long-term durability.