How Many Years Does Cellulose Insulation Last?

One of the main benefits of cellulose insulation is its durability. Under normal conditions, cellulose insulation can last 20–30 years, providing consistent performance throughout its lifespan. Proper installation and routine maintenance, such as inspecting for moisture damage, can extend its longevity even further.

Unlike fiberglass, cellulose resists settling over time and offers excellent thermal performance. It’s also resistant to pests and mold, making it an ideal choice for areas like attics and walls. However, if the insulation is exposed to excessive moisture or poor ventilation, its effectiveness may decrease.

Regular inspections can ensure your insulation remains in optimal condition. If you’re unsure about the state of your insulation, consult professionals who can evaluate its performance and recommend upgrades if needed.

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