It is offered in multiple thicknesses and dimensions in both square edged and tongue and groove joints.
Pink foam insulation r value.
Insulfoam rigid foam is a high performance built to spec sheathing insulfoam rigid foam is a high performance built to spec sheathing insulation that provides superior r value and moisture resistance.
Insulation level are specified by r value.
Pink and blue rigid foam insulation boards are made from polystyrene resin that is melted and then forced through a die to form it into the desired shape.
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.
Because of this i often get questions about which type of foam board insulation to use and what r values these products provide.
Eps is used under roofing over foundation walls and beneath siding.
Recommended home insulation r values.
This foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses.
R value is a measure of insulation s ability to resist heat traveling through it.
These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation.
The table below shows what levels of insulation are cost effective for different climates and.
It provides an r value of 4 per inch of thickness and is the cheapest type of foam board insulation.
Additional r value for a masonry wall constructed using these materials needs to add the insulating value of additional wall components typically included such as 1 solid foam polyisocyanurate r 8 extruded polystyrene r 5 expanded polystyrene r 4 or 1 of perlite r 2 7 and for an exterior air film winter no wind r 0 17 an interior.
Products with a higher r value have a higher cost but have an increased capacity to resist heat flow and therefore provide greater insulation.
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.
Project panels foamular 1 in.
Each type comes with unique advantages.
There are three basic foam insulation board products on the.
As insulators pink and blue boards perform virtually identically with an insulating value of r 5 per inch of thickness.
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 types.
Select 2 to 4 items to compare.
Choose from three types of insulating foam core boards for wall insulation.