To determine the value for all wall.
R value of 8 concrete block wall.
Add the individual components and then multiply by 11 and divide by 5 per fsec.
Depending on the density of the blocks an 8 inch thick block wall without any other type of insulation has a thermal resistance value between r 1 9 and r 2 5.
Box 513 metuchen new jersey 08840 0513.
Cavity wall r values are listed in tek 6 1c r values of multi wythe concrete masonry walls ref.
Lightweight concrete is ideal for highest thermal performance concrete masonry wall assemblies whole wall r values for.
The schundler company 150 whitman avenue p o.
R value table insulation values for selected materials this method of determining r values do not apply to dynamic mass walls such as the all wall system.
The increase achieved by injecting aminoplast foam insulation is up to 264 greater than is possible with normal weight concrete.
The r values u factors listed in this tek were determined by calculation using the code recognized series parallel also called isothermal planes calculation method refs.
Above grade concrete wall including inside and outside air films r 1 2 for 6 inch r1 4 for 8 inch concrete block wall with air in cavities r 2 0 concrete block wall with perlite in cavities r 2 9.
Block and cavity fill.