FireRock's LiteRock system is a lightweight fireplace installation method that, when combined with a metal chimney flue system, can be installed directly on a combustible floor, typically without additional support.
The LiteRock riser kit consists of either two 1.5" fireproof boards or an 8" metal riser (depending on what finished hearth height is needed). The LiteRock Riser is installed directly under the base plate and provides the necessary protection between the firebox and combustible floor system, thus eliminating the need for a 4" - 6" concrete slab footing.
*Important: Before installing onto the combustible floor system, it is important that the contractor has verified independently that the floor system is able to withstand the weight of the installation.
The LiteRock Riser Kit is approved for use with: