Marble Fireplaces are not suitable for solid fuel Fires (burning logs or coal) unless they are modified. In order to make a marble fireplace suitable for burning wood or coal it needs to undergo a process known as “Slabbing”.

What is involved in Slabbing a marble fireplace?

Slabbing involves cutting the marble back panel into three sections and providing purpose-built expansion joints that the heat to escape, and hence avoiding the risk of the back panel cracking whilst burning solid fuel. The fireplace hearth is also split into three or more sections and again filled with cement to make it more resilient to higher temperatures and avoid the risk of cracking.

Will a marble fireplace crack if it is used with solid fuel and not slabbed?

In our experience all Marble Fireplaces will crack if they do not undergo slabbing. The heat generated by solid fuel Fires is far greater than marble can handle and will eventually crack the material. Most natural marble and Micro marble are unsuitable (in our opinion) for use with solid fuel fires if they are not modified (using slabbing).

How much will it cost modified marble fireplace in order for it to be compatible with solid fuel fires?

On average, the industry will charge £100 extra for modifying the back panel and an additional £100 for modifying the fireplace hearth. It is cheaper to have the back panel and hearth cut into three sections and not filled with cement prior to delivery. If the marble hearth and back panel and not filled with cement, then the majority of fireplace retailers will charge £50 per piece for the modification.