Insulation Value Of Concrete Walls

Some manufacturers incorporate foam beads or air into the concrete mix to increase r values.

Insulation value of concrete walls.

Foam board to be placed on outside of wall usually new construction or inside of wall existing homes. But concrete is a conductor of thermal energy not an insulator. 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. The r value of an uninsulated 8 inch thick basement wall built using normal weight concrete is 1 35 based on data from the 1993 american society of heating refrigeration and air conditioning engineers handbook.

3 for tabulated r values of walls with core insulation. Products provide superior insulating properties. When using core insulation the insulation should occupy all. New construction or major renovations.

Unfinished walls including foundation walls. As for the furring used for interior insulation the thermal resistance of the concrete masonry webs and any grouted cores should be accounted for when determining the thermal performance of the wall see tek 6 2c ref. These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation. And insulating concrete blocks.

Note from this. In simple terms r values measure the effectiveness of insulation and a higher number represents more effective insulation. However too many people confuse insulation properties with thermal mass many icf dealers d. Concrete block makes a cost effective and structurally sound wall but it has.

I agree mostly with junio s answer. The products are easy to handle score cut and install and no special tools are needed. Products can be used on wood steel framing or concrete walls. By doubling the thickness of the wall to 16 inches the r value only increases by 0 50.

Therefore technically it has no insulation value.