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Animals That Pose a Risk to Roofs in Colorado

Colorado residents can face some pretty tough challenges when it comes to homeownership. Heavy snowfall in the wintertime, rainstorms in the spring and the heat of the summer can take its toll. But have you forgotten, one hazard that is always there—the animals?

Surrounding animal populations, which are high in the more wooded rural and suburban areas of the state are home to a host of critters. These critters can work their way into not only your garage and backyard sheds but your basements and attics! 

Animals of this type can cause thousands of dollars in property damage while looking for a suitable place to stay warm. This is why a proactive strategy to prevent them from getting access, is a must.

Your roof is just one of the most common entry points for a variety of critters. Animals commonly enter through soffits, vents, and small gaps in your shingles. Here are 5 critters you should look out for in Colorado:


These little guys can be a huge pain for property owners in Colorado. They have very strong teeth that allow them to chew through not only wood, but pry up asphalt shingles, and tear apart your insulation. 

Since Squirrels’ teeth are constantly growing (similar to rabbits)– they keep them nice and trimmed by gnawing on whatever they can find including your roof. If you’ve heard any type of rustling sounds in your ceiling or found small wood chips in unexpected places around your home or attic then you may want to check for external damage to your roof.


Raccoons are drawn to homes because they are an unintentional food source. They love bird feeders, pet food left on the porch and the occasional loosely sealed garbage can. 

While most raccoons will not force their way into your home in the summer they will look for a safe and dry area to bear their young. They love to nest inside attics and only need a small hole to get access. Raccoons love tearing up insulation and chewing on electrical wires too so if you suspect on call a professional fast. 


While Mice don’t cause as much damage to your roof as the other animals on this list, they can lead to several issues if they make it indoors. Mice build their nests above ground, making them excellent climbers and adept at finding vulnerabilities in your roof. These critters can squeeze between loose shingles and into small holes in your decking, where they often build nests and multiply. Beyond the health risks, mice are known to chew through wiring and pipes, burrow into a property’s wooden framing, and dislodge insulation in the attic.


There are a variety of bird species that may cause problems for your roof, such as woodpeckers, house sparrows, feral pigeons, and starlings. While many Massachusetts residents have learned to coexist with these (relatively benign) neighbors, they sometimes nest in and on buildings in large numbers. Birds build their nests using sticks, twigs and other debris, making gutters and downspouts perfect foraging spots and common roosting areas. Believe it or not, bird droppings contain a high concentration of uric acid, which can corrode roofing materials like tar paper and lead to the disintegration of shingles over time.

Protect Your Home Today

The best way to prevent these animals from causing damage to your roof is to watch for the warning signs and to keep an eye out for entry points that have developed. 

Remember a well-maintained roof is harder to breach so make sure you: 

  • Inspect your roof regularly
  • Trim any overhanging tree branches 
  • Clean Gutters
  • Watch for loose or missing shingles
  • Don’t leave potential food sources out to attract animals
  • Install a chimney cap and gutter guards to prevent nesting areas
  • Check your roof regularly for signs of nesting

Our licensed team of roofing contractors has helped families and commercial property owners identify common risks and protect their roofs from animal visitors. We will work with you to develop a plan that can meet your specific needs and keep your property safe all year long.