Indiana Insulation Attic R Value

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

Indiana insulation attic r value.

If your home is in a warmer climate you require an r 38 or higher or about 12 more. What r value do i need. 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.

There are many ways to retrofit a home with fiberglass and. The first r value applies to continuous insulation the second to framing cavity insulation. You will need a higher r value of insulation if you live in the northeast than if you live in southern california. 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.

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. The second r value for mass walls applies when more than half the insulation is on the interior of the mass wall. Where you live different climates require different insulation r values. R values for walls represent the sum of cavity insulation plus insulated sheathing if any.

Your home s age if your home is more than 10 year old you likely need more insulation. Recommended insulation levels for retrofitting existing wood framed buildings. Achieving greater r values in exterior walls. You can achieve better thermal performance in your attic by adding an additional layer of insulation.

Department of energy recommends 16 in. Foam insulation has a solution for this wild frontier. Many homes have as little as 9 in. Insulation levels and thermal performance are measured by r value.

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. 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. Either insulation meets the requirement. It is recommended that most homes in indiana have between r 49 and r 60 of insulation depending on the insulation material.

Of attic or roof insulation in regions where the u s. Add insulation to attic. Or insulation sufficient to fill the framing cavity r 19 minimum. R 5 shall be added to the required slab edge r values for heated slabs.

13 5 means r 13 cavity insulation plus r 5 insulated sheathing. The higher the r value the better the insulation s ability to resist heat flow.