What Wind Uplift Does to a Roofing System
What Wind Uplift Does to a Roofing System
During a storm, wind creates pressure differences as it moves over and around a building. These forces can pull upward on the roofing system, a phenomenon known as wind uplift.
Uplift pressure is typically strongest at roof edges, corners, ridges, and areas where wind changes direction. Overhangs are also vulnerable, as wind entering beneath the roof edge pushes upward while lower pressure above pulls in the same direction. These combined forces stress the roof covering and its securing components.
On shingle roofs, uplift can raise shingle edges, weaken adhesive strips, crease materials, or loosen fasteners. Damaged shingles may settle back after the storm and appear normal from the ground, even though their wind resistance is compromised.
On tile roofs, uplift may shift or loosen individual tiles, especially near edges, hips, and ridges. Tiles do not need to blow off to be damaged. Movement can disturb their attachment, create gaps, or expose underlayment to wind-driven rain.
Wind uplift can also impact metal panels, flashing, ridge components, vents, and other roof penetrations. Once an edge or seam lifts, wind can reach beneath and increase pressure on surrounding materials. In severe cases, this force may damage the roof deck or weaken the connection between the roof and the building.
A roof affected by uplift may not leak right away. Issues often appear during later rainfall, when water enters through loosened joints or damaged underlayment. Interior warning signs include new ceiling stains, damp insulation, peeling paint, or water intrusion during wind-driven rain.
After a significant wind event, homeowners should document visible damage from the ground and avoid walking on the roof. A professional inspection can identify lifted, loosened, or displaced components not visible from below. Packard Roofing & Waterproofing, Inc. assists Treasure Coast homeowners in evaluating wind damage and determining if repairs are needed.
