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.
Foam board insulation high r value.
Foam board insulation types.
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.
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Rigid insulation is one of the best tools to reduce your energy costs.
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The ultra r r 50 insulating panel is a rigid polypropylene encased vacuum insulation panel that is custom made to the client s specified dimensions.
Very good air bypass leak sealing properties.
These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation.
Because of this i often get questions about which type of foam board insulation to use and what r values these products provide.
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R 0 77 30 phenolic foam insulation r values.
You can even place it under the foundation slab.
Barrier ultra r super high r building panels produced by glacier bay use aerogel and are rated up to r 30 per inch or in barrier ultra r panels r 50 per inch.
There are three basic foam insulation board products on the.
Corrosion problems when in contact with steel roofing moisture.
Rigid foam insulation also known as insulating boards provide high r values.
Foamular high r cw plus insulation combines outstanding moisture resistance with excellent thermal performance.
They keep your home at a comfortable temperature without the need to crank your heat.
Phenolic foam spray insulation.