What R-values do I need in my home? After gaining a basic understanding of insulation R-value, the next thing homeowners need to determine is how much insulation they need and what R-values are ...

The R-value for insulation is a way to measure how much resistance the insulation has to heat flow. The higher the R-value, the more the resistance and the better the material is at insulating a home.

The Department of Energy also offers detailed instructions on how to determine the R-value of existing insulation and the R-values required indifferent states.

As for the best R-value insulation, they share that, "Closed cell spray foam is considered to have the best R-value of any insulation type, with an R-value of around 6.5 per inch.

CR's guide to home insulation will help you decide where and how to install the right type of insulation for the best results and biggest energy savings.

Geek Alert: The ability of insulation to resist the flow of heat from one side (your attic) to the other (your living space) can be measured in terms of R-value. R value is defined as ft 2 x ° F ...

Your home's R-value score will guide you toward the type of insulation you need. In general, an attic's R-value should be between R-30 and R-49. In particularly cold climates, you might go up to R-60.

This thorough blown-in insulation pricing guide will teach you more about blown-in insulation costs, including the average by square foot and by kind.

Foam core insulation may be a popular choice for homes, but not so much for the environment. Thankfully, these eco-friendly options are great alternatives.