With r value the higher the value the better of an.
Insulation grade for attic.
R value is a measure of insulation s ability to resist heat traveling through it.
Your attic should have a certain amount of insulation in it and the recommended level of insulation for your attic is dependent on where you live.
How much is enough.
The attic is the easiest place to add insulation to improve your comfort and the energy efficiency of your home.
Providing a grade i installation is important to delivering a quality energy efficient home.
Warmer climates only require an r 38 or higher or about 12 or more.
We re proud to say our products can be found in some of the tallest and safest buildings around the globe like salesforce tower.
A material with a low r value such as metal is a poor insulator whereas several inches of commercial grade fiberglass insulation would likely have a high r value.
The ideal attic insulation r value is different than the ideal wall insulation r value.
Houses in a cold climate should have a minimum of r 49 in the attic which is equivalent to approximately 16 of fiberglass insulation.
The amount of insulation recommended for your home is dependent on where you live but here are some general guidelines.
Up to 2 missing insulation.
Insulation is rated by its r value.
With a minimum of 70 recycled content the installed thermafiber products contributed to valuable leed credits helping the building earn a leed platinum certification.
Insulation level are specified by r value.
Attic roof insulation is as much of an art as it is a science so we will start with the basics and work our way up.
Insulation ratings can be improved by adding more layers of insulation.
R values vary based on the type thickness and density of the insulation material.
Insulation decreases the amount of heat entering from outside when it s hot and traps warmth inside when it s cold.
First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.
R value measures how resistant types of insulation are to heat flow.
The table below shows what levels of insulation are cost effective for different climates and locations in the home.
Achieving greater r values in attics.
You can mix the type and material of insulation too.
Between 2 and 5 missing insulation.
Case study salesforce tower.
Inspecting your attic insulation.
Now that you ve air sealed your attic and basement check your attic insulation levels and add more if necessary.
A grade i designation means that the home insulation is properly installed and without any moderate or substantial defects.
Make sure your home is properly insulated in all these locations.