scraping shingles off roof

What Happens When Your Roof Starts Aging

Even if you take great care of your roof, unfortunately, nothing lasts forever. Even during beautifully sunny days where there aren’t factors such as hail and high winds terrorizing the shingles on your roof, the effects of aging are constantly wearing the shingles down. 

There are a majority of signs that your roof is aging to the point that it may need replacement. The older a roof gets, the less likely patches and simple repairs are an option. At some point during your roof’s life span the adhesive that helps hold the shingles down and together gets weaker, and shingles get more brittle. These are the two main factors that makes it very difficult, and in some cases impossible, to simply repair any damage that is done to your roof. 

Moss covered roof

What Makes an Aging Shingle Weaker

Granule loss on the surface of a shingle is the main contributor to shingles breaking down, becoming more brittle and susceptible to holding moisture. The granules are the stone protective coating that goes over the face of the shingle. Once those granules wear off, the shingle loses its defense against the elements, and the shingle can more easily be damaged. 

damaged chimney flashing

Signs of an Aging Roof

Visible signs of an aging roof would be things such as black streaking, algae/moss buildup, damaged flashing, shingle curling, and shingle buckling. In more severe cases, pieces of shingles could begin to break away or chip off. 

Black streaking is actually a visible sign that there is an algae buildup on your roof. The effects of algae and moss on your roof can go hand in hand. Both algae and moss buildup can contribute to premature aging by trapping moisture around and under the shingles; as well as the roots of moss going as far as lifting the shingles up, trapping moisture underneath, and creating an environment for mold to start growing. Damaged flashing, shingle curling, and shingle buckling can all be caused by adhesive losing its strength, the shingles shifting, and trapped moisture. 

Many of these factors aren’t a matter of if they occur but when. As long as you take action when certain signs occur, as well as get your roof inspected every 3 to 5 years, you’ll be helping your roof do its job in sheltering everything beneath it. 

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