Insulation Value Of Concrete Wall

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.

Insulation value of concrete wall.

Wall insulation whenever exterior siding is removed on an. By doubling the thickness of the wall to 16 inches the r value only increases by 0 50. Follow with a 2x4 frame wall and. Energy and the environment.

But concrete is a conductor of thermal energy not an insulator. Achieving greater r values in attics. Drill holes in the sheathing and blow insulation into the empty wall cavity before installing the new siding and. When using core insulation the insulation should occupy all.

Therefore technically it has no insulation value. However too many people confuse insulation properties with thermal mass many icf dealers d. The ideal attic insulation r value is different than the ideal wall insulation r value. A wall s thermal resistance or its r value is its ability to slow the transfer of heat from one side to the other.

I agree mostly with junio s answer. 3 for tabulated r values of walls with core insulation. Concrete block makes a cost effective and structurally sound wall but it has. Concrete homes magazine web search 5 18 2010 r value for concrete glass other materials wikipedia web search 5 18 2010 citing ristinen robert a and jack j.

For instance if you have a material with an r value of 12 attached to another material with an r value of 3 then both materials combined have an r value of 15. Insulation ratings can be improved by adding more layers of insulation. Add r5 to r6 insulative wall sheathing beneath the new. Therefore the doe s value is on the high end of the r value of a log wall.

For example a building with material with an r value of r 11 converts to an u value of 0 09 1 r or 1 11 0 09. Attach the tongue and groove insulation boards to the concrete wall with adhesive. You can mix the type and material of insulation too. For a basement remodeling project consider insulating basement walls with foam board.

U value has an inverse relationship to r value. For new construction use rigid boards to insulate slabs and the outside of foundation walls. In simple terms r values measure the effectiveness of insulation and a higher number represents more effective insulation. Use a premade kit for this type of project.

Add r5 insulative wall sheathing beneath the new siding. Make sure your home is properly insulated in all these locations.