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Most homeowners do not think about their roofing material’s wind resistance rating until it is spread across the yard after a storm. Understanding what those ratings mean, which materials fail first, and what to do in the immediate aftermath of wind damage helps property owners make better decisions under pressure.
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Wind resistance ratings: what the numbers mean
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Asphalt shingles — the most common residential roofing material — carry wind resistance ratings specified in ASTM D3161 and ASTM D7158. Class D shingles are rated to 90 mph; Class F to 110 mph; Class H (the highest common rating) to 150 mph. These ratings are for new, properly installed shingles on sound decking. Aged shingles, improperly nailed shingles, or shingles on compromised decks fail at significantly lower wind speeds. A Category 1 hurricane produces winds of 74–95 mph; a Category 3 produces 111–129 mph. Real-world storm damage routinely occurs at wind speeds well below the rated threshold when installation or material condition is substandard.
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What fails first in wind events
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Wind damage to roofing follows predictable patterns. Edges and corners fail first — wind creates uplift pressure at roof edges that works shingles loose starting from the perimeter. Ridge caps are high-exposure; hip caps are common early failure points. Any penetration — vents, chimneys, skylights — creates an edge condition that fails ahead of the field. Older shingles with brittleness from UV degradation fail at lower wind speeds than new material. And any shingles installed with improper nailing patterns — too few nails, wrong nail placement, inadequate drive depth — fail significantly below their rated wind speed.
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The temporary dry-in as a bridge to better roofing
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After wind damage removes roofing material, the exposed roof deck needs protection immediately — while the homeowner makes decisions about replacement material, navigates the insurance claim, and schedules a contractor. A professional shrink wrap dry-in provides that bridge: a 6-month warranted, weather-tight temporary enclosure that protects the deck and interior while permanent decisions are made without time pressure. The dry-in also gives homeowners the time to select upgraded wind resistance class shingles for the replacement rather than defaulting to “whatever the contractor has in stock.”
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Upgrading wind resistance in the replacement
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A storm damage repair is the best opportunity to upgrade your roof’s wind resistance. Moving from Class D to Class H shingles, adding continuous ridge ventilation to reduce uplift pressure differential, ensuring proper nail pattern on replacement installation, and addressing any decking issues found during the repair all improve the roof’s performance in future wind events. Insurance proceeds typically cover bringing the roof to code, which in many jurisdictions now requires higher wind resistance specifications than what was standard when the home was built.
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After wind damage, StormWrappers provides the temporary protection that gives you time to make these decisions right. Call 888-897-2748.
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