Without proper insulation, your home can lose heat through the attic. According to This Old House, you can lower your household heating bills by as much as 10% to 50% if you ensure that your attic is properly insulated. If you're concerned about your attic, many roofing companies offer attic and roofing insulation. Even if your attic has insulation, it may need replacement. Read below to learn more about when to replace your attic insulation.

How Long Does Attic Insulation Last?

There are several types of attic insulation, and the total lifespan can vary based on the material used. For example, cellulose insulation typically lasts 20 to 30 years, while spray foam insulation can last up to 80 years if properly maintained, according to Angi.

In addition, certain factors can shorten the lifespan of attic insulation, meaning you'll have to replace it sooner rather than later. Water damage can cause the insulation to deteriorate, so it's best to reach out to roofing companies immediately if you spot signs of a leak. Your insulation may also need replacement if it smells musty or shows signs of mold growth.

When Should You Replace Your Attic Insulation?

You'll also want to look for clear warning signs that your insulation is ready to be replaced. If you've noticed a draft in your home or the temperature is constantly fluctuating, then that's an indicator that your insulation isn't doing what it should.

Keep an eye out for changes in your home. Are your utility bills higher than usual? Does it feel like your AC has to work harder to keep your home cool? Issues like this indicate that your insulation isn't working as well as it used to. Replacing your insulation could lower your utility costs and save you money.

Another major issue that can impact your home's insulation is pest infestations. Many pests, including mice and birds, may seek shelter in attics during colder weather. If you've noticed animal droppings or bite marks in your attic, then check it for pests immediately.

What's the Best Type of Insulation for Attics?

Since there are several types of insulation, it's often difficult to find the right option for your attic. One of the most affordable and popular options is fiberglass batt insulation, a material comprised of reinforced plastic. Although it's a cost-effective option, it retains less heat than other types of insulation.

If you're looking for an environmentally-friendly insulation material, cellulose paper is an excellent choice. It uses recycled paper and usually contains a compound like borate that makes it fire and insect-resistant. Since it's much denser than fiberglass, it's better at retaining heat.

Other insulation materials worth considering include spray foam and reflective insulation. If you're struggling to decide on a material, contact roofing companies offering insulation services.

In addition to choosing appropriate insulation, you should make sure your home has enough insulation. The thermal resistance of insulation is something you can measure by looking at its R-level. If your insulation has a lower R-level, adding additional insulation can improve its effectiveness.

How Do You Increase Your Attic Insulation's Lifespan?

Once your new attic insulation is installed, you'll want to keep it in good condition for as long as possible. Regular inspections are a very effective way to maintain your insulation. If you notice problems during the inspection, such as moisture or visible damage, you can address the issue immediately. Try to keep your attic clean and clutter-free throughout the year so that you can easily inspect it as needed.

It's also a good idea to check for air leaks in your attic and other parts of your home. Use weatherstripping or caulking to seal off any leaks that you find. Air leaks reduce the effectiveness of insulation, so blocking off those leaks will make it easier for your insulation to do what it needs to. You may also want to look into upgrading your windows!

There aren't any firm rules on when you need to replace attic insulation, but if you're experiencing issues, it's wise to contact roofing companies offering insulation services. The right company can talk you through your options and guide you toward the best solution for your attic. Insufficient insulation is often a severe problem. Don't hesitate to reach out to Rembrandt Roofing & Restoration today if you have questions about the insulation in your attic!