Why do Squirrels Chew on House Siding? A Pest Control Expert Explains
Squirrels chew on house siding mainly because they are driven by the need to sharpen their teeth, to expand or create nesting cavities, and in search of nutrients like minerals in the materials. This behavior can be incredibly damaging to your home.
Understanding Squirrel Siding Damage
Squirrels, while undeniably cute in the park, can be a homeowner’s nightmare. Their persistent gnawing on wooden and vinyl siding is more than just a nuisance; it’s a sign of underlying needs and behaviors that need to be understood to effectively manage the problem. The reasons why do squirrels chew on house siding? are multifaceted.
The Biological Imperative: Teeth Maintenance
One of the primary drivers behind this destructive behavior is the squirrel’s ever-growing incisors. Unlike human teeth, a squirrel’s front teeth continuously grow throughout its life. To keep them at a manageable length and maintain a sharp edge, squirrels must constantly gnaw. This constant chewing is crucial for their survival, enabling them to crack nuts and seeds, which are essential parts of their diet.
Wood and siding happen to be readily available and easily gnawed on, making them convenient tooth-sharpening tools. The softer woods like cedar are preferred, though squirrels will make do with whatever is at hand.
Nesting and Shelter: Expanding Their Domains
Squirrels also chew on siding to create or enlarge entry points to nests. They need shelter from the elements and safe places to raise their young. Small cracks or existing holes in siding become invitations for squirrels to investigate, and they will readily expand these openings to gain access to the protected spaces inside your walls, attic, or soffits. This nesting activity can lead to structural damage as squirrels tear away insulation and chew on wiring.
Mineral Needs and Salt Cravings
Believe it or not, squirrels also chew on siding to obtain certain minerals or salts. Some siding materials may contain trace elements that attract squirrels, particularly during certain times of the year when their nutritional needs change. The adhesives used in siding or even the paint itself can sometimes provide a source of minerals that squirrels are seeking. This is less common than teeth sharpening or nesting, but it is still a contributing factor to why do squirrels chew on house siding?
Identifying the Culprits: Types of Squirrels and Their Habits
Several squirrel species are known to cause damage to homes. The most common culprits include:
- Gray Squirrels: These are among the most widespread and adaptable squirrels, often found in urban and suburban environments.
- Red Squirrels: Smaller and more aggressive than gray squirrels, red squirrels are also notorious for their chewing habits.
- Flying Squirrels: While less common, flying squirrels can also cause damage, particularly by entering homes through small openings and chewing on insulation.
Preventing Squirrel Damage: A Multifaceted Approach
Preventing squirrel damage requires a comprehensive approach. There are several methods you can utilize to deter these pesky creatures.
- Eliminate Food Sources: Keep bird feeders clean and use squirrel-resistant feeders. Clean up fallen nuts and seeds from your yard.
- Trim Trees and Shrubs: Cut back branches that overhang your roof, as these provide easy access for squirrels to climb onto your house.
- Seal Entry Points: Inspect your home for cracks and holes in the siding, roof, and foundation. Seal these openings with caulk, steel wool, or hardware cloth.
- Install Deterrents: Consider using squirrel repellents, such as those containing capsaicin (the active ingredient in chili peppers), or ultrasonic devices.
- Hardware Cloth Barriers: Wrap vulnerable areas of your siding, like corners and downspouts, with hardware cloth.
- Professional Pest Control: If you’re struggling to manage the problem on your own, contact a qualified pest control professional for assistance.
Repairing the Damage: Restoring Your Home’s Integrity
Once squirrels have damaged your siding, it’s important to repair the damage promptly to prevent further problems.
- Replace Damaged Siding: Remove and replace any siding that has been chewed or damaged by squirrels.
- Repair Structural Damage: Inspect the underlying structure for any damage and repair it as needed.
- Disinfect the Area: Clean and disinfect the affected area to remove any squirrel droppings or urine.
- Consider Professional Repair: For extensive damage, consider hiring a professional contractor to ensure the repairs are done correctly.
Frequently Asked Questions About Squirrels and Siding
Why do squirrels chew on house siding when there are trees nearby?
Even with trees available, the siding offers different textures, potential mineral sources, and convenient access to sheltered areas. The constant growth of their teeth means they need to chew constantly, and the siding provides readily available chewing material. Also, accessing the inside of a building is more secure from predators compared to trees.
Are there certain types of siding that are more susceptible to squirrel damage?
Yes, wood siding, particularly softer woods like cedar and pine, are more prone to squirrel damage. Vinyl siding, while less palatable, can still be chewed on to gain access to underlying structures. Metal siding is less likely to be damaged.
Is squirrel chewing a sign of other problems with my house?
It could be. Squirrels are often attracted to homes with existing weaknesses, such as rotted wood or gaps in the siding. Their presence might be indicating underlying maintenance issues that need to be addressed.
What are the dangers of having squirrels nesting in my walls?
Squirrels nesting in walls can cause a variety of problems, including damage to insulation and wiring, fire hazards, and the spread of diseases and parasites. Their droppings and urine can also create unpleasant odors and attract other pests.
How do I know if squirrels are nesting in my attic?
Signs of squirrel activity in your attic include scratching noises, especially at dawn and dusk, the presence of droppings, and the discovery of nests made of leaves, twigs, and insulation.
Can I trap and relocate squirrels that are damaging my property?
In some areas, it is illegal to trap and relocate squirrels without a permit. Even if it is legal, relocating squirrels can be stressful for the animals and may simply move the problem to someone else’s property. Check local regulations and consider other deterrent methods first.
What are some natural repellents that I can use to keep squirrels away?
Some natural repellents that may deter squirrels include capsaicin-based sprays (chili pepper extract), peppermint oil, and mothballs. However, these repellents may need to be reapplied regularly, especially after rain.
How often should I inspect my house for squirrel damage?
It’s a good idea to inspect your house for squirrel damage at least twice a year, in the spring and fall. Pay close attention to areas where squirrels are known to be active.
Will insurance cover the cost of squirrel damage to my house?
Whether or not your insurance covers squirrel damage depends on your specific policy. Some policies may cover damage caused by wildlife, while others may not. Check your policy or contact your insurance provider for clarification.
What should I do if I find a baby squirrel that has fallen from its nest?
If you find a baby squirrel, contact a local wildlife rehabilitator for assistance. They can provide the proper care and attention to ensure the squirrel’s survival. Do not attempt to raise the squirrel yourself.
Is there a specific time of year when squirrels are more likely to chew on siding?
Squirrels are most likely to chew on siding during the spring and fall, when they are building nests and preparing for winter. They may also be more active during mating season.
What can I do if I suspect that squirrels are already inside my walls?
If you suspect that squirrels are inside your walls, contact a qualified wildlife removal specialist or pest control professional. They can safely and humanely remove the squirrels and seal up any entry points to prevent future infestations. This is the best way to approach why do squirrels chew on house siding? scenarios when they’ve already breached your home’s exterior.