From Wikipedia“The outer layers are soapstone, chosen for it’s enduring qualities and ease of use” If it works for Christ The Redeemer - it will work for us.Over the years the freeze and thaw has taken its toll on the brick of this chimney. The bricks have broken down and in some places fallen off. The limestone cap fell apart and was removed last year and temporarily replaced with a makeshift metal cap. Now I will restore this chimney - it will be lighter, more decorative and be able to survive the harsh elements. It will be made with Canadian Soapstone.Going from 2,500 lbs to 1,200 lbs Click to see how .