Think about what it might be like to be a mouse. They may grow and thrive in your attic insulation. Warmth? Check. Places that are dark to hide? Sure. Things that are soft that you can use as a nest? Yes, you can.
Most forms of attic insulation are wonderful places for bugs to live. Little animals can get through the holes in fiberglass batts. Birds love to build nests in blown-in cellulose. Even spray foam might break down over time.
Rodents like to chew through insulation to construct tunnels. They use the resources to keep their families’ homes warm and comfortable. You won’t even know it, yet there are a lot of bugs living over your head for free.
Signs That Your Insulation Has Unwanted Guests
You don’t need to go up to your attic to uncover issues. Here are some things to watch out for:
- Strange scratching or scrambling noises above you
- Vents that smell musty
- Little holes in the walls or close to the roof
- Droppings where things are kept
- Wires that have been bitten
When animals walk over insulation, they also push it down. This makes it less functional and costs you more in energy. If insulation gets damaged, it can lose as much as 50% of its R-value.
Proper Installation Makes All the Difference
The first step in stopping something from happening is to put things in the right place. A lot of homeowners make blunders here. They discuss the type of insulation, but not how to put it in.
Before adding new attic insulation, skilled insulation contractors fill up any holes and gaps. They know where bugs generally get in and stop them from getting in. It makes a tremendous difference to seal the air.
Holes around pipes, vents, and electrical fixtures can let mice and rats inside your home. Contractors use caulk, weatherstripping, and foam to fill in these spaces.
Good air flow is also very important. Good airflow keeps moisture from building up, which brings in pests and makes mold grow.
Choosing Options That Don’t Draw In Pests
Some kinds of insulation naturally do a better job of keeping pests out than others:
- Closed-cell spray foam makes a strong wall that is hard to chew through
- When made correctly, stiff foam boards keep bugs out
- Cellulose insulation that has been treated with boric acid keeps a lot of pests away
The therapy is safe for people and keeps bugs away naturally. Don’t leave things lying around that make suitable nesting spots, like edges or loose items. Adding protective barriers over insulation makes it even safer.
Final Thoughts
In short, don’t wait till you hear scratching sounds at night. Once a year, look in the attic to detect problems before they get worse. Most homeowners don’t spot warning signs that experienced insulation contractors do. They can recommend repairs or upgrades before small problems evolve into big ones that cost a lot of money.
If you already have pests, get rid of them before you add new insulation. Putting animals in new insulation will only make matters worse in the future.
Your attic insulation should keep your home warm and comfy and keep bugs out. You can keep your energy costs and insect problems under control by installing things correctly and keeping up with regular maintenance.
Note: If your upstairs always feels hotter than the rest of your home, poor insulation may be the reason. Old or damaged insulation can let heat seep in, forcing your AC to work harder. Simple fixes like sealing leaks and upgrading insulation can make a big difference. For more insights, check out these insulation tips to cool your upstairs fast.