Indiana Insulation Attic R Value

You can achieve better thermal performance in your attic by adding an additional layer of insulation.

Indiana insulation attic r value.

Department of energy recommends 16 in. Where you live different climates require different insulation r values. There are many ways to retrofit a home with fiberglass and. The higher the r value the better the insulation s ability to resist heat flow.

The second r value for mass walls applies when more than half the insulation is on the interior of the mass wall. The first r value applies to continuous insulation the second to framing cavity insulation. Existing 3 4 inches of insulation. You will need a higher r value of insulation if you live in the northeast than if you live in southern california.

It is recommended that most homes in indiana have between r 49 and r 60 of insulation depending on the insulation material. A thermal moisture and radiant barrier. Attic insulation for homes that are situated in cold climates homeowners need to ensure that they have a minimum of r 49 in their attics this is equivalent to about 16 inches of fibreglass insulation. As a benchmark one inch of solid wood has an r value of 1.

The insulation for basement walls must be from the top of the wall down 10 feet below grade or to the basement floor whichever is less. R 5 shall be added to the required slab edge r values for heated slabs. 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. Achieving greater r values in exterior walls.

The higher the r value the better the thermal performance of the insulation. Add insulation to attic. 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. Your home s age if your home is more than 10 year old you likely need more insulation.

Or insulation sufficient to fill the framing cavity r 19 minimum. Recommended insulation levels for retrofitting existing wood framed buildings. Foam insulation has a solution for this wild frontier. Install foam insulation for a closed attic system and you stop the extreme temperatures never allowing the air to invade the space keeping it conditioned to the home s temperature.

Many homes have as little as 9 in. 13 5 means r 13 cavity insulation plus r 5 insulated sheathing. What r value do i need. Insulation levels and thermal performance are measured by r value.

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. R values for walls represent the sum of cavity insulation plus insulated sheathing if any.