As temperatures begin to fall in Murfreesboro, homeowners are not the only ones looking for a warm place to spend the winter. Mice, squirrels, raccoons and other animals may enter attics through small gaps around rooflines, soffits, vents and utility penetrations.
Once inside, these unwanted guests can tear apart insulation, create nesting areas and leave contamination behind. What begins as a faint scratching sound above the ceiling can eventually become a damaged insulation system that affects the home’s comfort, air quality and energy efficiency.
If pests have damaged the insulation in your attic, removing the animals is only the first step. The contaminated or displaced material may also need to be professionally removed and replaced.
That is when it is time to call Complete Insulation.
CALL COMPLETE INSULATION AT (615) 614-8800
Why Attic Pest Problems Increase During a Murfreesboro Winter
Middle Tennessee winters are unpredictable. A mild afternoon can quickly turn into a freezing night, encouraging animals to search for shelter from cold temperatures, wind and rain.
Homes near wooded areas, open fields, creeks and growing residential developments can be especially attractive to wildlife. Attic problems can occur throughout Murfreesboro, including properties near:
Blackman and Veterans Parkway
Barfield and South Church Street
Rockvale and Highway 99
Siegel and North Rutherford Boulevard
Overall Creek and Medical Center Parkway
Downtown Murfreesboro and MTSU
Lascassas and northeastern Rutherford County
Walter Hill and the Stones River area
Older homes may have aging soffits, loose vents or gaps created by previous repairs. Newly constructed homes are not immune, either. Small openings around roof intersections, utility lines and exterior finishes may be large enough for determined pests to enter.
What Animals Commonly Damage Attic Insulation?
Several types of animals may enter attics during cold weather.
Mice and Rats
Rodents can squeeze through surprisingly small openings. Once inside, they may tunnel through loose-fill insulation, compress fiberglass batts and use insulation as nesting material.
Rodents can also leave droppings, urine and food debris throughout the attic. Their activity may extend beyond the insulation to electrical wiring, ductwork and stored belongings.
Squirrels
Squirrels are strong chewers and may enlarge an existing opening to enter the attic. They can tear apart fiberglass insulation, move loose-fill material and create large nesting areas near soffits and roof edges.
Homeowners often hear squirrels running, scratching or chewing during daylight hours.
Raccoons
Raccoons may enter through damaged vents, weak soffits or openings near the roofline. Because of their size, they can flatten or displace a substantial amount of insulation.
A raccoon nesting in an attic can also leave concentrated areas of waste and contamination that require specialized attention.
Birds and Bats
Birds and bats may enter through attic vents, fascia gaps and roof openings. Their nests and waste can contaminate insulation and restrict ventilation.
Wildlife removal should be completed by an appropriately qualified pest or wildlife professional before insulation restoration begins.
Signs Critters May Be Living in Your Attic
Attic pests are not always visible from inside the home. Warning signs may include:
Scratching, chewing or running sounds overhead
Noises that become more noticeable at night or early in the morning
Droppings near attic access points
Unusual odors coming from the attic
Insulation scattered near soffits or vents
Fiberglass hanging from access openings
Visible nests or tunnels through loose insulation
Damaged ductwork
Chewed wiring or building materials
Uneven indoor temperatures
Higher heating bills
Drafts near ceilings or attic access doors
Exterior damage around roof vents, fascia or soffits
If you hear movement in the attic, avoid disturbing the animal or contaminated material. Contact a pest or wildlife professional to identify and remove the intruder safely.
How Critters Destroy Attic Insulation
Attic insulation must remain evenly distributed, dry and properly installed to provide its intended thermal resistance. Pest activity can interfere with each of these conditions.
Animals may:
Compress insulation beneath nests and travel paths
Move blown-in insulation away from certain areas
Tear fiberglass batts into nesting material
Create tunnels through loose-fill insulation
Contaminate material with urine and droppings
Bring food, leaves and outdoor debris into the attic
Damage vapor-control materials
Disturb attic baffles
Expose portions of the ceiling below
Damage air-sealing materials
Create new openings that allow outside air into the attic
Even after the animals are gone, the insulation may no longer provide consistent coverage. Bare areas and compressed material can make rooms below the attic harder to heat during winter.
Why Damaged Attic Insulation Should Not Be Ignored
Pest-damaged insulation is more than an unpleasant attic problem. It can affect the performance and condition of the entire home.
Reduced Energy Efficiency
When insulation is compressed, displaced or missing, heat can escape through the ceiling more easily. The heating system may run longer to maintain the thermostat setting.
Uneven Indoor Temperatures
Bedrooms or living spaces beneath damaged areas may feel colder than the rest of the home. Homeowners may notice cold ceilings, drafts or significant temperature differences between rooms.
Contamination and Odors
Animal waste can create persistent odors and contaminate surrounding insulation. Simply adding new insulation over contaminated material does not remove the underlying problem.
Hidden Building Damage
Animals that enter an attic may also damage wiring, ducts, vents, framing and roof components. These conditions should be inspected and repaired by the appropriate professionals before new insulation is installed.
Continued Pest Access
Replacing insulation without sealing the animals’ entry points can lead to another infestation. Wildlife exclusion and exterior repairs should be completed before attic restoration.
Should New Insulation Be Added Over Pest-Damaged Insulation?
New insulation should not automatically be installed over material damaged by rodents or other animals.
Adding clean insulation over contaminated material can bury droppings, nesting debris, odors and damaged sections without correcting the problem. It can also make future cleaning and repairs more difficult.
Complete Insulation evaluates the accessible attic conditions to determine whether the existing material can remain or should be removed. Insulation may need to be removed when it is:
Contaminated with animal waste
Wet or stained
Badly compressed
Torn apart
Mixed with nesting materials
Unevenly distributed
Damaged by roof or plumbing leaks
Preventing necessary repairs
No longer providing dependable coverage
Once removal is complete and the source of the damage has been corrected, the attic can be prepared for a new insulation system.
ASK ABOUT ATTIC INSULATION REMOVAL
The Correct Order for Restoring a Pest-Damaged Attic
A successful attic restoration requires more than blowing new insulation into the space. The work should generally be completed in the following order.
1. Identify the Animal
A pest-control or wildlife professional should determine what entered the attic and locate potential entry points.
2. Remove the Animal
Animals should be safely removed before insulation work begins. Complete Insulation does not trap or relocate wildlife.
3. Seal Entry Points
Roof, soffit, fascia and exterior openings should be repaired or sealed so animals cannot immediately return.
4. Inspect for Additional Damage
Chewed wiring, damaged ductwork, roof leaks and structural concerns should be evaluated by the appropriate qualified contractor.
5. Remove Damaged Insulation
Contaminated, wet or severely disturbed insulation included in the project scope is removed and transported away from the property.
6. Prepare the Attic
Accessible debris is cleared from the work area. Air leaks, ventilation components and other attic conditions can then be evaluated.
7. Install New Insulation
New blown-in fiberglass, fiberglass batts or spray foam may be installed according to the attic’s design and the approved project scope.
8. Review the Finished Coverage
The completed installation is checked for consistent coverage, appropriate depth and visible gaps.
Choosing Replacement Insulation for a Murfreesboro Home
The right insulation depends on where the home’s thermal boundary is located and how the attic is designed.
Blown-In Fiberglass Insulation
Blown-in fiberglass is commonly installed along the floor of a vented attic. It can provide even coverage around framing, wiring and other obstructions.
It may be appropriate for:
Replacing contaminated loose-fill insulation
Adding insulation to an under-insulated attic
Improving uneven coverage
Restoring insulation after pest removal
Reaching the recommended attic R-value
Fiberglass Batt Insulation
Fiberglass batts may be used in framed cavities where the material can be properly fitted without gaps or compression.
Batts must be cut and installed carefully around obstructions. Poorly fitted material can leave openings that reduce overall performance.
Spray Foam Insulation
Spray foam may be installed at a qualifying roofline or in other approved attic assemblies. It provides insulation and air sealing in one application.
Converting a traditional vented attic into a sealed, unvented attic requires careful planning. Roof condition, moisture control, ventilation, HVAC equipment and combustion appliances should all be considered before foam is installed.
Complete Insulation evaluates the structure before recommending blown-in fiberglass, fiberglass batts or spray foam.
Can Attic Insulation Help Keep Critters Out?
Insulation is not pest control, and it should not be used to seal an active animal entry point.
Spray foam and other air-sealing materials can close certain gaps within the building envelope, but animals may chew through insulation when exterior openings remain accessible. Roof repairs, wildlife exclusion and pest-control work should be completed separately.
The best long-term approach combines:
Professional animal removal
Exterior entry-point repairs
Necessary roof and soffit work
Removal of contaminated materials
Attic air sealing where appropriate
Proper replacement insulation
Ongoing inspection and maintenance
Why Call Complete Insulation?
Complete Insulation is based in Murfreesboro and serves homeowners throughout Rutherford County and Middle Tennessee. We understand how seasonal temperature swings, growing neighborhoods, wooded lots and older construction can affect local attics.
Our attic services include:
Attic insulation inspections
Damaged insulation removal
Pest-contaminated insulation removal
Blown-in fiberglass installation
Fiberglass batt installation
Open-cell spray foam
Closed-cell spray foam
Attic air sealing
Insulation replacement
Existing-home insulation upgrades
New-construction insulation
We clearly explain which problems should be handled before insulation work begins. If the attic has active animals, roof leaks, unsafe wiring or other concerns outside our scope, those conditions should be corrected by the appropriate professional before new insulation is installed.
Frequently Asked Questions
Who replaces insulation after rodents invade an attic in Murfreesboro?
Complete Insulation removes and replaces qualifying pest-damaged attic insulation in Murfreesboro and surrounding Middle Tennessee communities. Active animals should be removed and entry points sealed before insulation restoration begins.
Does all attic insulation need to be removed after mice?
Not necessarily. The amount that should be removed depends on the location and extent of contamination. Widespread droppings, urine, nesting or damaged material may justify more extensive removal.
Can you install new insulation over rodent droppings?
New insulation should not simply be used to cover contaminated material. The affected insulation and debris should be evaluated and removed as appropriate before replacement.
Does Complete Insulation remove squirrels or raccoons?
Complete Insulation focuses on insulation removal, restoration and installation. Animal trapping, relocation and pest exclusion should be performed by an appropriately qualified pest or wildlife professional.
What should I do if I hear scratching in my attic?
Contact a pest-control or wildlife professional to identify the animal. Avoid handling droppings, nesting material or damaged insulation without appropriate protection.
Can squirrels ruin blown-in insulation?
Yes. Squirrels can create paths and nesting areas that move or compress blown-in material, leaving uneven coverage across the attic floor.
Will replacing attic insulation make my house warmer?
Properly installed insulation can reduce heat loss through the ceiling and improve indoor comfort. Results also depend on air leakage, HVAC performance, ductwork and the condition of the rest of the building envelope.
What R-value should a Murfreesboro attic have?
Many Middle Tennessee attic projects target approximately R-49 to R-60, depending on the attic assembly, existing material and applicable requirements. Complete Insulation can evaluate the current insulation before recommending an upgrade.
How do I know whether insulation should be removed or repaired?
An attic evaluation can identify contamination, moisture, compression, missing coverage and other damage. Clean and properly installed material may sometimes remain, while contaminated or severely damaged insulation may require removal.
When should I schedule attic insulation restoration?
Schedule an evaluation after the animals have been removed and their entry points have been sealed. Completing the work before extended cold weather can help restore the attic’s thermal protection for winter.
Do Not Let Attic Critters Leave Your Home Out in the Cold
Once a mouse, squirrel, raccoon or other animal has been removed, the attic may still contain torn, compressed or contaminated insulation. Leaving that damage in place can contribute to cold rooms, uneven temperatures, odors and unnecessary heat loss throughout winter.
Complete Insulation can evaluate the attic, remove qualifying damaged material and install a replacement insulation system designed for your Murfreesboro home.
Call Complete Insulation at (615) 614-8800 to request an attic insulation inspection in Murfreesboro, Smyrna, La Vergne, Rockvale, Lascassas or another Middle Tennessee community.