If you’ve ever walked outside after a particularly bad storm and found a stray shingle missing from your roof, then it’s no surprise to you that wind is one of the most damaging forces when it comes to impacting your roof. High winds and strong gusts pose trouble for roofs of all types, especially those that are getting on in years. But how exactly does wind go about damaging your roof and how do you know if your home is at risk?
Between the strong breeze on a warm summer day and the fury of a fully formed tornado, there are a number of types of wind that can damage your home. How these winds blow dictates how they’re affecting your roof. For example, a tornado’s sheer force is enough to cause chaos for your roof no matter what, however single strong gusts generally need to hit your roof at certain angles to have the capacity to lift and remove shingles. Because your roof is designed to be, in part, aerodynamic, it’s meant to channel wind, rather than brace against it. It’s when winds blow angularly upward that your roof is in the most danger of suffering damage.
An upward blowing gust that has enough force will tend to flow under the lip of shingles that are older or have become slightly dislodged, causing them to rattle and eventually become removed from the roof itself. To make matters worse, if your shingles start to become malformed in a defined area, the wind will likely damage adjacent shingles, causing them to become weakened over a larger area.
The science of it all
Now, there’s more at work than just wind and shingles when it comes to damaged roofing materials in Ambler: there’s also a fair bit of science. Depending on the location of shingles on your roof, there may be more or less stress associated with these shingles—meaning that there’s a certain force holding them in place. The center of your roof, for example, will have low stress because the area is flat and spacious, whereas the corners of your roof and edges will likely have a much higher level of stress.
Where there’s stress, there’s also pressure—pressure generated by high winds. When high-pressure winds blow against high-pressure areas of your roof, the shingles pay the price! Low pressure areas offer “suction” against the wind, keeping them glued to your home, but high-pressure areas create conflict and force that causes shingles to literally be torn from their spot!
Also factored into the equation is the natural movement of your roof. Yes, your roof shifts and moves over time, but only in the smallest of capacities—this is the result of the ebb and flow of your home; support beams and junctions expanding and contracting based on temperature and moisture. Depending on whether there is expansion or contraction in certain parts of the roof, these areas may be more or less likely to receive added stress.
The easiest way to prevent damages to roofing materials in Ambler from wind is to always keep up on roofing repairs. Identifying spots where shingles have become loose or malformed is a great way to prevent them from becoming casualties of the next windstorm. It’s also a good idea to speak with a roofing contractor to understand how sealing your roof can protect against storm damage.