To give you a quick example if you blow in 18 of insulation into your attic with an r value of 3 0 per inch you ve got an effective r value of 3 x 18 54.
Recommended r value for attic.
The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type.
Insulation level are specified by r value.
The amount of insulation recommended for your home will vary depending on a number of factors.
The province the city and the area greatly influence the difference in r value for the insulation of an attic.
R value is a measure of insulation s ability to resist heat flow.
Recommended home insulation r values.
Where you live different climates require different insulation r values.
The recommended r value for attic insulation in our area of the country minnesota is 49.
R value is a measure of insulation s ability to resist heat traveling through it.
The higher the r value the better the thermal performance of the insulation.
Know exactly how much you need with our project calculators.
You will need a higher r value of insulation if you live in the northeast than if you live in southern california.
The higher the r value the greater the insulation performance.
When determining how much insulation you need don t guesstimate calculate.
Blown in cellulose insulation can carry an r value of 3 2 3 8 per inch of thickness.