How do I Know When I’m Supposed to Replace My Roof Shingles?

Roofs don’t last forever, considering they bear most of the impact of severe weather and other outdoor elements. They require regular maintenance to extend their durability, but they still break down over time, requiring replacement. So, how do you know when to replace your roof shingles? Here is a brief guide on the tell-tale signs to look that it’s time for roof shingle replacement.

Missing Granules

Granules protect your shingles from damage by UV sunrays, so granule loss expedites the wear process. Unfortunately, you cannot replace or repair missing granules – replacing the affected shingles is the only option. Large patches on the shingles and the presence of granules in the gutters are clear signs of missing granules. 

Moss Growth

Moss growth is a common occurrence on roof shingles. It usually isn’t a big problem – you can wash the moss off most of the time. 

However, moss growth for extended periods weakens the shingles, expediting the wear and tear process. The moss also gets under the shingles, lifting them up and compromising drainage. Moss can also pose various health risks. 


Curling is an unmistakable characteristic of old roof shingles. It occurs when the shingles dry and shrink over time because of extended exposure to sunlight and other severe weather elements. Curled shingles don’t drain efficiently. They are also brittle, making them easy to damage and blow off. The curled, uplifted edges also make the roof appear old and worn. Curling is irreversible and irreparable – replacement is the only option. 


No roof lasts forever, and shingles have a lifespan of 15 to 20 years – more or less, depending on factors such as maintenance. Aging usually coincides with other deterioration signs, such as curling, missing granules, and moss growth. 

Extending your roof’s lifespan could be counter-productive, especially if its integrity is compromised. However, you don’t need to replace your roof if it is still fit despite being old. 

Weather Damage

Harsh weather, such as storms, can damage your roof in multiple ways. The shingles can crack, break, or tear off under the weather’s extreme pressure. Unfortunately, some damages may be irreparable, necessitating replacement. 

Consult an Expert

Roof shingle replacement can be expensive, but a faulty roof can be costly, too. Deciding whether or not to replace your roof shingles can be tricky. Ultimately, consulting a professional roof consultant is prudent. Fortunately, Moss Roofing can help you make an informed decision on replacing your roof shingles – we can also help with maintenance, repairs, and replacement. Get in touch to learn more about how we can help. 

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