Foam Board Insulation Rigid Insulation R Value Chart

R values vary depending on many factors including the mean temperature at which the test is conducted and the age of the sample at the time of testing.

Foam board insulation rigid insulation r value chart.

It is denser than eps and provides more r value with a rating of 5 per inch of thickness. 8 3 4 4 8 2 20. Very good air bypass leak sealing properties. Corrosion problems when in contact with steel roofing moisture.

The common denominator among varieties of insulation is the r value. This foam board insulation is available with straight or tongue and groove edges to help limit air movement. I ve written several posts about how to insulation basement walls in which i promote the use of foam board insulation as the first line of defense against moisture and mold. R value is a measurement of thermal resistance and measures the ability of heat to transfer from one side of an object to another.

You can even place it under the foundation slab. They keep your home at a comfortable temperature without the need to crank your heat. Foam board insulation types. As a benchmark one inch of solid wood has an r value of 1.

Because rigid foam plastic insulation products are not all aged in accordance with the same standards it is useful to publish comparison r value data. 4 8 7 21. Because of this i often get questions about which type of foam board insulation to use and what r values these products provide. Polyiso rigid insulation r value chart written by kupis on may 7 2020 in chart r value chart caflei closed cell and open insulation r values in pir roof insulation embly 5 interior insulated cmu wall gm 0702 to insulating sheathing.

Choose rigid insulation wisely and consider the effect its characteristics will have on the performance of the your project overall product cost and the best way to get the bang for your buck. Rigid insulation is one of the best tools to reduce your energy costs. This foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses. R 0 77 30 phenolic foam insulation r values.

Phenolic foam spray insulation. For example if you have a type of insulation that has an r value of r 5 per inch of thickness you will need a depth of 6 inches of this insulation installed in your attic to reach r 30 if you live in zones 2 or 3. There are three basic foam insulation board products on the. Our r value guide to rigid insulation includes the doe s recommended insulation by zone chart r value calculator and base building material r values chart.

4 5 21. 1 844 446 7858 my account. Rigid foam insulation also known as insulating boards provide high r values. These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation.