R-value

Jason_13

R value

Doing a heat loss. What would the R-value of a wall 2 ft thick stone, he called it iron stone. Thanks

nicholas bonham-carter

Stone R-value

It must be close to poured concrete in the SlantFin app-that is what I used for my cemetery Chapel heat loss.--NBC

Rich_49

Stone

has a low R value . Natural stone products such as Granite and lime or sand stone have the following R values .   Granite has an R value of point 05 per inch and sand/lime stone have R of point 08 per inch making your wall if any of these materials 1.2 overall R and 1.92 .  Is the wall you ask about natural material or something else .

remember that the more dense the material the lower the R value will be , concrete at 60 pounds per foot will have an R of point 52 per inch and the same concrete at 150 pounds per foot will have an R value of point 07 per inch , that is a huge difference .