Best R Value Insulation For Attic

The higher the r value the better the thermal performance of the insulation.

Best r value insulation for attic.

The other option is purchasing a pre insulated garage door that may have a higher r value. Types of attic insulation material. In particularly cold climates you might go up to r 60. Your home s age if your home is more than 10 year old you likely need more insulation.

Recycled glass or sand that s melted and spun into fibers. Depending on where you live and the part of your home you re insulating walls crawlspace attic etc you ll need a different r value. In general an attic s r value should be between r 30 and r 49. Lighter in weight than cellulose or mineral wool but it settles more than those materials so you ve got to put in a thicker layer to get the protection you need.

Recommended home insulation r values. This adds insulation to the garage door without impeding its functionality. R value is a measure of insulation s ability to resist heat traveling through it. These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation.

Where you live different climates require different insulation r values. Different insulation materials have unique strengths and weaknesses and some attics will be more suited for certain material than others. For example if you have a type of insulation that has an r value of r 5 per inch of thickness you will need a depth of 6 inches of this insulation installed in your attic to reach r 30 if you live in zones 2 or 3. To choose the best insulation for your home from the many types of insulation on the market you ll need to know where you want or need to install the insulation and what r value you want the installation to achieve.

Typical recommendations for exterior walls are r 13 to r 23 while r 30 r 38 and r 49 are common for ceilings and attic spaces. You will need a higher r value of insulation if you live in the northeast than if you live in southern california. Insulation level are specified by r value. Your home s r value score will guide you toward the type of insulation you need.

Before you ever get insulation anywhere near the attic though make sure that you get the air leakage sites sealed up. If you put an air permeable insulation material over a hole in your ceiling you may have comfort indoor air quality durability and efficiency problems. There are many ways to retrofit a home with fiberglass and. Most garage door insulation has an r value of between r 8 and r 12 because it is so thin to fit the space.