Insulation level are specified by r value.
Attic floor insulation r value.
The higher the insulation r value the greater the insulating power.
R stands for resistance to heat flow.
Blown in insulation makes it easy to earn a higher grade rating when it comes to r values.
The table below shows what levels of insulation are cost effective for different climates and locations in the home.
You ll see insulation r values indicated on product packaging and often on the product itself.
This is because it achieves nominal r value when it fills in the cavities which include the hard to reach in areas voids and gaps.
R value is a measure of insulation s ability to resist heat traveling through it.
Note from this chart that the ideal r value differs for each part of your home.
Insulation is identified and labeled by r value.
Recommended insulation levels for retrofitting existing wood framed buildings.