Installation Cellulose
Compared to fiberglass, cellulose is a superior air-blocker. Air moving through a vented attic deposits dirt and dust into fiberglass batts, a phenomenon known as wind-washing. Dirty fiberglass batts have a significantly reduced R-value. Cellulose, being denser than fiberglass, is much more resistant to wind-washing.
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Cellulose
Both cellulose and fiberglass are energy-efficient insulation materials, but cellulose has a slight edge due to its higher R-value. The R-value for cellulose insulation is approximately 3.2 to 3.8 per inch, while fiberglass insulation typically has an R-value of 2.2 to 2.7 per
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Pros and Cons of Cellulose
While there are certain advantages of having a paper-based insulation, there are also some notable disadvantages.
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Advantages of cellulose include:
• Low-price – Because cellulose is primarily made out of paper, it s an even more inexpensive form of insulation at about 75% of the cost of fiberglass.
• Easy Installation – Cellulose comes in small pieces and there are many ways to install it, so it fits well with most homes structures but can be very messy to install.