Attic Insulation Types R Value

The r value per inch for different types of insulation varies depending on the.

Attic insulation types r value.

The higher the r value the better the thermal performance of the insulation. The table below shows what levels of insulation are cost effective for different climates and locations in the home. For every type and material of insulation check the r value per inch of thickness that the manufacturer has listed. R value is a measure of insulation s ability to resist heat traveling through it.

In general an attic s r value should be between r 30 and r 49. For loose fill insulation each manufacturer must determine the r value of its product at settled density and create coverage charts showing the minimum settled thickness minimum weight per square foot and coverage area per. Choose from two types. Insulation level are specified by r value.

While there are additional considerations such as venting and moisture problems to take into account when you insulate under floors the united states department of energy recommends an r 25 rating in cold climates and an r 11 in warmer parts of the country. Your home s r value score will guide you toward the type of insulation you need. The higher the r value the better the thermal performance of the insulation. They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively.

The r value of the insulation for every inch of thickness depends on the type of insulation. R values of common types of insulation. Recycled glass or sand that s melted and spun into fibers. Having the correct amount of attic insulation can help you maintain a comfortable temperature throughout your home and help save money on your energy bills plus prevent major issues like ice dams in the winter.

In general how the insulation s method of installation can give you an idea of how it compares to other types of insulation. The recommended r value for attic insulation in ontario is between r 50 and r 60. Closed cell and open cell aka 2 pound and pound respectively. A higher insulation r value usually means a higher price point as well.

In particularly cold climates you might go up to r 60. Spray foam offers the best attic insulation performance available. Spray foam attic insulation. R value ratings vary among different types and forms of home insulations and among products of the same type and form.

Achieving greater r values in exterior walls. You can achieve better thermal performance in your attic by adding an additional layer of insulation.