High-velocity Winds
High-velocity Winds | Metal Roofing | Roofing | Gatlinburg
Nestled against the Smokies, Gatlinburg sees wind gusts that can rattle even the toughest shingles. HEP’s high-velocity winds solution harnesses the strength of metal roofing to lock each panel tight against driving rain, flying debris, and fierce mountain drafts. The result is a sleek, modern roof that shrugs off 140-mph winds, resists corrosion, and keeps its color no matter how many storms roll through.
Beyond brute strength, our metal roofing reflects radiant heat, lowers cooling bills, and comes in a palette that complements rustic cabins and contemporary chalets alike. Backed by industry-leading warranties and installed by local crews who understand Gatlinburg’s unique climate, HEP delivers peace of mind with every seam, screw, and standing rib. Upgrade once—enjoy decades of quiet security overhead.
FAQs
Why is metal roofing recommended for high-velocity wind zones like Gatlinburg?
Steel and aluminum panels interlock along all four sides, creating a continuous, rigid surface that resists uplift far better than individual shingles. Metal roofs also use concealed fasteners and engineered clip systems that allow slight movement without breaking the seal. Combined with their lightweight nature (¼ the weight of asphalt), the roof deck endures less stress during windstorms common in the Smoky Mountains, reducing the risk of blow-offs.
What wind ratings do your metal roofing systems carry?
Our standing-seam and 5V profiles are tested to ASTM E-1592 and UL 580 standards and are rated for uplift pressures exceeding 150 mph (equivalent to a Category 4 hurricane). We can specify panels certified under the Florida Building Code and Miami-Dade NOA for customers who want the highest documented performance, even though Gatlinburg’s design wind speed is lower (up to 130 mph per IRC 2021).
How is a high-wind metal roof installed differently from a standard one?
1. Fastener density: We follow enhanced fastening schedules with screws every 12 in. on center at eaves, ridges, and edges. 2. Clip type: High-strength, floating clips are anchored with #12 screws that penetrate into framing members, not just the deck. 3. Underlayment: We install a self-adhering ice-and-water membrane over the entire deck to create a secondary water and air barrier. 4. Edge metal: 24-gauge edge flashings are secured with continuous cleats per ANSI/SPRI ES-1 to prevent edge peel. 5. Sealants: High-temperature butyl sealant is used in seams and penetrations for long-term elasticity.
Do Gatlinburg building codes require special permits or inspections for wind-rated metal roofing?
Sevier County follows the 2021 International Residential Code, which sets a 130 mph design wind speed. Any roof replacement already requires a building permit, but there is no separate high-wind permit. Our team submits manufacturer certification data and uplift calculations with the permit package, and the county inspector will verify fastener spacing and flashing details during the sheathing and final inspections.
Can installing a high-velocity-rated metal roof lower my homeowners insurance?
Many insurers offer wind-mitigation discounts (5–15 %) for roofs tested to UL 580 Class 90 or higher. We provide a Certificate of Installation with the panel test reports, photos, and permit records that you can submit to your carrier. Because Gatlinburg is not on the coast, the discount is not guaranteed, but most clients have seen annual savings that offset a portion of the roof’s cost within the first five years.
What maintenance is required to keep a metal roof wind-resistant over time?
Metal roofs are low-maintenance, but high winds can loosen fasteners and debris can clog valleys. We recommend: • Annual visual inspection, especially after severe storms, to tighten any exposed screws on flashings. • Clearing leaves and branches from valleys and gutters twice a year. • Checking sealant lines around penetrations every 5 years; re-apply butyl if cracks appear. • Scheduling a professional uplift test or torque check every 10 years to confirm clips remain secure. Following these steps keeps the roof at its original wind rating for 40–50 years.