Silicone roof coatings are often applied as a protective layer over existing roofing materials, providing waterproofing and UV resistance. However, fastener back-out can become an issue, where the screws or nails holding the roof down start to loosen and protrude. This happens because of normal building movement, temperature changes causing expansion and contraction, or improper fastening during installation. Over time, fasteners can loosen, reducing the roof’s integrity and leading to leaks or damage beneath the coating. Homeowners can perform a simple visual check for popped or raised fasteners and gently test suspicious areas by pressing down or tapping to see if fasteners move. It’s important not to over-tighten or force anything yourself, as this can cause damage to the roofing membrane or coating.
If you notice back-out or any signs of roofing damage, it’s wise to call a professional roofer who specializes in silicone coatings. A roofer will inspect not only the fasteners but also the overall condition of the coating and underlying roof. They can recommend solutions like re-securing fasteners with properly sized screws or washers and may suggest applying additional coating over repaired areas to maintain waterproofing. When speaking with your contractor, ask if they use fasteners that are compatible with silicone coatings and how they ensure the fasteners remain secure long-term given thermal movement. Also inquire about their process for warranty-safe repairs to avoid voiding any existing coverage. This will give you confidence the fix is both effective and won't cause further issues down the road.