R-Value is a measure of insulation's ability to resist heat flow. Install Knauf Eco Fill Wx fiberglass blown-in insulation in your attic, and get additional sound control, comfort, and energy-savings year-round. Welcome to R-Value Insulation, your professional and reliable insulation contractor in Indianapolis, IN and the surrounding areas. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted. Blown insulation makes it much easier to earn a Grade 1 HERS rating. R-Value is a measure of insulation’s ability to resist heat traveling through it. Add new comment. The R values between blown in cellulose insulation and fiberglass insulation are the same but the thickness varies. Smart use of blown-in fiberglass insulation can help homes achieve a great effective R-value. Electrical boxes obstruct the continuity of the insulation, and care must be taken to cut and fit insulation around and behind the box to ensure there are no gaps or voids. In this case, two installers are needed: one to feed insulation and operate the machine on the ground; and the other positioned in the attic to install the blown-in fiberglass. Or it could be you're a homeowner who's been told about this problem by an insulation contractor warning you not to put fiberglass insulation in your home. Blown fiberglass installed in the attic has an R-value of 2.2 per inch, so 12 inches of it would give you an R-value of 26.4 in your attic installation project. Lorem ipsum dolor sit amet lorem ipsum dolor sit amet lorem ipsum dolor sit amet. Professional installers and DIYers also can use blown-in fiberglass insulation in an … Link to Lowe's Home Improvement Home Page. There are also increased benefits from an acoustical perspective, due to the uniform and increased density of a quality application. And while material costs tend to be slightly higher than with batts, the fact that you can insulate more houses in a day and achieve a consistent level of performance can make installed costs comparable. Odd-size cavities, such as in corners or the spaces adjacent to windows or partition walls, require batts to be expertly cut to size to ensure proper fit. Rock Wool(loose): 2.2 – 3.3 5. Input depth of existing blown-in insulation (in inches). Per square inch of insulation, cellulose has a higher R-value than fiberglass. Installers can achieve a desired R-value by filling the space to the specifications listed on the insulation packaging. Both blown in cellulose insulation and fiberglass insulation perform well to insulate your home. Odd-size cavities can be insulated with consistency using blown insulation (all images courtesy IBACOS). One bag of Climate Pro provides 73 square feet of R-30 coverage. With blown fiberglass, a skilled installer can easily fill in voids and around obstructions. Although cellulose does have a slightly higher R factor (a unit of thermal resistance; cellulose has an R-value of approximately 3.0 per inch while fiberglass ranges from R-2.1 to R-2.7), cellulose will settle over time, potentially leaving some areas (in walls particularly) with little or no insulation. It is You can mix the type and material of insulation too. This is especially true for builders working under the 2015 energy code, which requires that homes be evaluated according to RESNET’s Home Energy Rating System (HERS). The table below shows what levels of insulation are cost-effective for … That’s because insulation can only achieve its nominal R-value when it fills all framing cavities, including hard-to-reach and sometimes hidden gaps and voids. By creating an account, you agree to Pro Builder's terms of service and privacy policy. Blown-in insulation is a pneumatic installation, meaning it is insulation blown into place with the help of a blowing machine. How thick should blown in insulation be? The higher the R-Value, the better the thermal performance of the insulation. Higher number = better performance. Fiberglass Insulation Types. The higher the R-Value the better the thermal performance of the insulation. Deep wall framing, such as a transition from 2x4 to 2x6 wall framing, requires a thicker batt to ensure it fully fills the cavity—something that is still overlooked by some builders. Fiberglass batt insulation is priced by the roll or by the square foot. That said, blown insulation isn’t a panacea. There are two ways you can keep reading: Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Fiberglass manufacturers have developed blown fiberglass insulation they cl… In comparison, an inch of blown fiberglass insulation has an R-value of 3.1 - 3.4 and an inch of blown cellulose in an attic has an R-value of 3.2 - 3.7 Along with knowing the R-value of a particular insulation, it is also important to calculate the R-value of a total system. Insulation Project Calculator ProPink vs Competition How to Install NAIMA R-Value Certification Product Training Videos CoLab® Learning Video Library For Pros Distributor Locator Why Owens Corning Insulation ProPink® vs. Spray Foam PINK® Fiberglas™ vs. Cellulose Professional Support Insulation ratings can be improved by adding more layers of insulation. Fiber glass insulation typically contains 20% to 30% recycled glass1. Otherwise known as “loose-fill,” this fiber glass insulation is energy efficient, and useful for insulating hard-to-cover spaces, such as sloped ceilings, midfloors, open attic areas, floors and walls. Fiberglass(batts): 2.9 – 3.8 3. Cellulose insulation includes cellulose cells that have natural insulating power. Fiberglass insulation is the same type of material that is in batts or rolls of fiberglass insulation except it is chopped or cubed so that it can be installed with an insulation blowing machine. That’s because installers tend not to take enough time to carefully cut and fit batts around wires, pipes, and other obstructions, and they often don’t get enough insulation into those hard-to-reach spots. Depending on where you live, it’s recommended that attics have a minimum R-value of … For example, roll insulation suitable for 2×4 wall and ceiling cavities is about $0.35 to $0.40 per square foot. Your blown-in fiberglass insulation has an R-value of 2.5 per inch. How Much Insulation Do I Need? Cellulose(blown): 3.1 – 3.8 4. Each day, our editors assemble the latest breaking industry It is able to improve energy efficiency, home comfort, and lower utility costs. For example, if your attic already has fiberglass insulation blankets installed, you can improve its R-value by installing blown-in cellulose insulation on top of the blankets. Fiberglass insulation for most projects comes in batts and rolls with R-values ranging from R-8 to R-49. Here are the R-values per inch of the most common types of insulation: 1. Fiberglass blowing fiber is blown through a hose attached to a blowing machine. Cellulose insulation goes beyond R-value because it also reduces air infiltration and convection more effectively than fiberglass, which further enhances its insulation properties. number that describes the effectiveness of a particular insulation material In the context of building and construction, the R-value is a measure of how well a two-dimensional barrier, such as a layer of insulation, a window or a complete wall or ceiling, resists the conductive flow of heat. 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