For the walls surrounding the living room fireplace, Cobb specified high-volume fly ash concrete made with 

a by-product of burning coal in power plants that usually ends up in landfills.  Photo 4 of 4 in A Sustainably Built Weekend Home by Diana Budds

A Sustainably Built Weekend Home

4 of 4

For the walls surrounding the living room fireplace, Cobb specified high-volume fly ash concrete made with

a by-product of burning coal in power plants that usually ends up in landfills.