What is R-Value Of Cellulose Insulation Compared To Fiberglass?

Cellulose Insulation Benefits

Cellulose insulation offers numerous benefits over traditional fiberglass insulation, including its higher R-value and ability to be installed in tighter spaces. This eco-friendly option is made from recycled paper products and contains natural fire-resistant properties. When installed correctly, cellulose insulation can achieve R-values of up to R-4.3 per inch, significantly reducing heat transfer and energy consumption. Additionally, cellulose insulation is less prone to settling and compression over time, maintaining its insulating properties for years to come.

Cellulose Installation Techniques

Proper installation is key to maximizing the R-value and performance of cellulose insulation. Installers should use a blowing machine to inject the cellulose material into the wall cavity, ensuring a uniform density of 3.5-4.5 pounds per cubic foot. This can be achieved by using a combination of blowing machines and manual tamping. It’s also essential to seal all gaps and holes to prevent air leaks and maintain the insulation’s effectiveness. Proper density and installation techniques can result in cellulose insulation performing up to 40% better than fiberglass insulation.

R-Value Comparisons

While the R-value of cellulose insulation can vary depending on factors such as density and moisture content, studies have consistently shown that it outperforms fiberglass insulation in terms of thermal resistance. For example, a 2x4 wall filled with cellulose insulation at 3.5 pounds per cubic foot can achieve an R-value of R-24.5, while the same wall filled with fiberglass insulation at 3.5 pounds per cubic foot would only achieve an R-value of R-18.5. These results demonstrate the superior insulating properties of cellulose insulation and its potential to reduce energy consumption and costs.