When considering insulation options for your home or business, one of the most critical factors to evaluate is the R-value. The R-value measures the thermal resistance of an insulating material, indicating how well it can resist heat flow. A higher R-value means better insulation performance and improved energy efficiency. At Capital City Spray Foam of Salem, we understand the importance of making informed decisions when it comes to insulating your property. In this post, we’ll dive into what the R-value of 5.5-inch spray foam is, how it compares to other insulation options, and why it’s a popular choice for homeowners in Salem, OR, and beyond.
Spray foam insulation is a type of insulation material applied as a liquid that expands rapidly upon application, filling cavities, gaps, and cracks to create an airtight seal. It’s available in two main types:
The R-value is a measure of an insulation material’s ability to resist heat flow. It’s calculated by taking the thickness of the material (in inches) and multiplying it by the material’s thermal resistance rating. The higher the R-value, the better the material is at insulating and reducing heat transfer.
If you’re considering closed-cell spray foam insulation at 5.5 inches, you’ll be pleased to know that it offers a high R-value. On average, closed-cell spray foam insulation provides an R-value of 6 to 7 per inch. Therefore, at 5.5 inches thick, the R-value of closed-cell spray foam insulation can range between 33 and 38.5.
Benefits of High R-Value in Closed-Cell Spray Foam:
On the other hand, open-cell spray foam typically has an R-value of 3.5 to 4 per inch. At 5.5 inches, this would equate to an R-value range of 19.25 to 22.
Advantages of Open-Cell Spray Foam:
Fiberglass batts typically offer an R-value of 3.1 to 3.7 per inch, meaning that at 5.5 inches, you would have an R-value ranging from 17.05 to 20.35. Although fiberglass is affordable and easy to install, it doesn’t provide the same level of thermal resistance or air-sealing capabilities as spray foam.
Cellulose insulation, which is made from recycled paper and treated for fire resistance, has an R-value of approximately 3.2 to 3.8 per inch. This would put the R-value of 5.5 inches of cellulose at 17.6 to 20.9. While cellulose is eco-friendly, it may not be as effective at air-sealing as spray foam.
Mineral wool insulation has an R-value of 3.0 to 3.3 per inch, which translates to an R-value of 16.5 to 18.15 at 5.5 inches. Mineral wool offers fire resistance and soundproofing but does not provide the same airtight seal as spray foam.
With an R-value ranging between 33 and 38.5 for closed-cell spray foam, 5.5 inches of insulation offers substantial energy savings by minimizing heat transfer. This translates to lower heating and cooling costs and a more comfortable living environment year-round.
Spray foam insulation not only seals your home from external elements but also prevents drafts and helps reduce the infiltration of allergens, dust, and pollutants, which can improve your indoor air quality.
Although spray foam insulation may come with a higher initial cost compared to traditional insulation materials, its durability and energy-saving benefits make it a wise investment in the long run. Properly installed spray foam can last the life of your home without needing replacement or repair.
The decision to use spray foam insulation depends on your specific needs:
The R-value of 5.5-inch spray foam insulation can vary based on whether you choose open-cell or closed-cell foam. Closed-cell spray foam, with an R-value of 33 to 38.5, offers superior energy efficiency, moisture resistance, and durability, making it an excellent choice for those looking to maximize their insulation investment. Open-cell spray foam, with an R-value between 19.25 and 22, is a great option for budget-conscious homeowners who still want solid thermal and soundproofing properties.
At Capital City Spray Foam of Salem, we provide expert spray foam insulation services to homeowners in Salem, OR, and surrounding areas. If you want to learn more about the best insulation options for your home or discuss the benefits of 5.5-inch spray foam insulation, don’t hesitate to reach out.
Contact us today at (541) 748-3700 or email [email protected] for a consultation and see how we can help you improve your home’s energy efficiency and comfort.