Measures insulation s resistance to heat flow out of the.
Ceiling insulation r value recommendation.
R value measures how well certain building insulation materials can resist heat.
For every type and material of insulation check the r value per inch of thickness that the manufacturer has listed.
The higher the r value the better the thermal performance of the insulation.
R value ranges from 1 5 to 7 and the higher the insulation s r value the better that product is at insulating your home.
Typically a higher insulation r rating means better climate control and better energy efficiency for your home.
There are three types of r value to be mindful of.
When determining how much insulation you need don t guesstimate calculate.
There are many ways to retrofit a home with fiberglass and.
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.
Where you live different climates require different insulation r values.
The table below shows what levels of insulation are cost effective for different climates and.
Recommended home insulation r values.
The higher the r value the greater the insulation performance.
You will need a higher r value of insulation if you live in the northeast than if you live in southern california.
Your home s age if your home is more than 10 year old you likely need more insulation.
Insulation level are specified by r value.
A higher insulation r value usually means a higher price point as well.
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.