Insulation level are specified by r value.
Energy star insulation attic.
The table below shows what levels of insulation are cost effective for different climates and locations in the home.
Now that you ve air sealed your attic and basement check your attic insulation levels and add more if necessary.
The attic is usually where you can find some of the largest opportunities to save energy in your home.
Learn how to measure attic insulation get solutions and save energy with energy star with diy home improvement ideas or by working with a contactor.
Combined with attic air sealing it can also help to alleviate the formation of dangerous ice dams in the winter.
The higher the r value the better the thermal performance of the insulation.
R value is a measure of insulation s ability to resist heat traveling through it.
By adding insulation in your attic you can maintain the desired temperature throughout your home much better.
At first it may seem odd to add insulation for warmth and then purposely allow cold air to enter the attic through vents but this combination is the key to a durable and energy efficient home.
About attic ventilation natural attic ventilation.