R Value Of Concrete Cinder Block Walls

Lightweight concrete is ideal for highest thermal performance concrete masonry wall assemblies whole wall r values for.

R value of concrete cinder block walls.

For mass walls like concrete block walls this means they must provide an insulating factor of at least r 10 to r 13 if the walls are below grade and from r 13 to r 19 if the wall is considered an above grade wall. Concrete block walls u values r values. As we said before the r value measures the thermal resistance of a material. The insulation may be poured directly into walls or emptied into a simply wood or metal hopper which can be slid along the wall to direct the free flowing perlite into cores of cavities thus insulating all voids and air pockets.

Insulated concrete blocks can increase their r value to about 1 2 per square inch and air entrained blocks can have r values as high as 3 9. A wall s thermal resistance or its r value is its ability to slow the transfer of heat from one side to the other. 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. R values and u values and.

Conventional 8 inch concrete block walls have an r value of 0 08 per square inch or about 2 5 for the whole block. Concrete block makes a cost effective and structurally sound wall but it has.