Insulation … How much is enough?

Brunette Home Improvement • February 16, 2026
Insulation … How much is enough?

When researching insulation, you might end up scratching your head wondering what all these numbers stand for. We’re here today to clear up the confusion.


Insulation’s ability to slow down heat’s inevitable escape from your home is rated on a scale known as the R-value. The R stands for “resistance.” The higher the R value, the more insulating the material.


But what R-value do you need? You don’t want to overpay for insulation, but you also don’t want to end up overpaying on your heating and cooling bills because your insulation is inadequate. So, how much insulation is enough for your home?


Here’s an explanation of common R-values and their uses in different climates.


R-60 – The Ideal R-Value for Colder Climates

Typically about 20 inches of blown in fiberglass insulation in your attic equals an R-value of 60, which is recommended for most homes in colder climates.


R-49 – You’re Still in the Comfort Zone

About 16.5 inches in your attic is equal to R-49 insulation value.


R-38 – You’re on the Verge of an Upgrade

About 13 inches of older insulation is equal to an R-30 value.


R-19 – Definitely Under-Insulated

An R-19 value is approximately 5 to 11 inches deep in your attic.


R-13 – YOU ARE GIVING YOUR HEAT AND AIR CONDITIONING TO THE BIRDS!

Most homes 30 years or older have approximately 6″ or less of insulation resulting in an R-Value of R-13.


Contact Brunette Home Improvement to find out how you can reach an R-60 value, which is appropriate for the climate of the Mid-Michigan area, and begin saving money.

Recent Posts

By Brunette Home Improvement August 21, 2026
Ridge vents exhaust hot air and moisture along the roof peak in East Lansing, MI. Learn how balanced intake keeps your attic dry and energy costs lower year-round.
By Brunette Home Improvement August 18, 2026
Box vents offer spot exhaust for roofs in Okemos, MI where ridge vents aren't practical. Discover pros, limitations, and how they compare visually and functionally.
transparent
By Brunette Home Improvement August 1, 2026
Enhance your DeWitt home with expert siding installation. Choose from durable vinyl & fiber cement options. Contact us for a consultation!
By Brunette Home Improvement July 22, 2026
Pipe boots seal plumbing vents and roof penetrations in DeWitt, MI. Discover how proper integration prevents leaks and the warning signs to watch for around pipes.
By Brunette Home Improvement July 22, 2026
Chimney flashing in Grand Ledge, MI uses base and counter layers to prevent leaks. Learn why tar fails, how masonry shifts, and the role of chimney caps.
By Brunette Home Improvement July 22, 2026
Step flashing directs water away from roof-to-wall joints in Lansing, MI. Learn where it's used, how it integrates with shingles, and common leak causes.
transparent
By Brunette Home Improvement July 1, 2026
Get premium window installation to enhance energy efficiency & curb appeal. Contact us for expert solutions today!
transparent
By Brunette Home Improvement June 1, 2026
Transform your outdoor space with custom deck installation. Contact us for expert design & installation services today!
transparent
By Brunette Home Improvement June 1, 2026
Enhance your home with expert additions & remodeling. Improve comfort & value with our professional services. Contact us for a consultation!
transparent
By Brunette Home Improvement June 1, 2026
Get fast storm damage repairs & restoration. Our experts handle roofing, siding, & windows. Contact us for help today!
Show More