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Wind Damage to Roofs: Different Types of Roofs
By the RestorationSOS Educational Staff
Almost any wind storm is capable of doing damage to the roofs of homes and businesses and the type of roof involved largely determines the level of damage that can be done. The roof is the first and best line of defense against the elements, so it becomes important to make sure your roof is in good condition and made of appropriate materials designed to withstand the wind conditions that may be found in your area.
There are basically three types of roofing materials that are helpful for battling against strong winds. Snap lock stand seam metal roofs are one option. They are designed to stand up against hurricane force winds and rain, however, it may be dented by impact from flying debris. Spanish-style concrete tiles are another popular choice, held together by foam adhesive that is strong enough to resist 150 mph winds. Other concrete tiles also may use a drainable elevated batten. Hip-style roofs are more aerodynamic and as such offer a greater degree of wind and hurricane protection than more traditional gabled-style roofs.
Flat-style roofs do not typically last very long in high wind scenarios and are very prone to wind damage. The coatings on these roofs will wear down rather quickly, rendering them vulnerable and they may also be damaged by extremes in temperature.
Any roof may suffer erosion as a result of continuous exposure to water, meaning that the roof may cave in or rust if not properly repaired. Slanted and pitched roofs have this problem to a greater degree because of the rapidity of the water flowing off the surface. Flashing may be used effectively to channel water off in proper directions to avoid one area being overrun and eroded by continuous water flow. It also provides additional protection against water intrusion.
As mentioned, the roof on your home is the first line of defense against the elements, so it is important to make sure the roof is properly installed. Storm winds may strike from different directions, affecting the property in different ways. Hurricane force winds may rip off roofing and ruin roof sheathing, eaves, awnings, and even porch constructions, basically anything that can trap air and catch the wind.
Shingles are applied through locking tabs or factory supplied adhesives and sometimes they may not adhere effectively to underlying shingles. Damaged shingles and flashing should always be repaired immediately. Tile roofs can provide excellent protection from the elements during high wind, but they should be secured prior to any storm season. Loose tiles may fly off during hurricane conditions, resulting in considerable damage.