Hi,
I’m in the process of building an extension with a suspended timber floor. An after thought was the wood burning stove! I now need to retrofit a constructional hearth of 125mm but I’m conscious of the additional weight of this with the stove and the flue above.
my thinking is to remove the 840x840mm area of chipboard floor and replace with Hardie backer 12mm then add 100mm thermalite blocks before pouring a 25-30mm concrete slab which will then be polished to give a finished hearth to sit the stove on. The addition of the thermalite blocks should save a lot of weight, but I can’t find any info to say whether this is acceptable for building regs?
any advice or thoughts welcomed!
I’m in the process of building an extension with a suspended timber floor. An after thought was the wood burning stove! I now need to retrofit a constructional hearth of 125mm but I’m conscious of the additional weight of this with the stove and the flue above.
my thinking is to remove the 840x840mm area of chipboard floor and replace with Hardie backer 12mm then add 100mm thermalite blocks before pouring a 25-30mm concrete slab which will then be polished to give a finished hearth to sit the stove on. The addition of the thermalite blocks should save a lot of weight, but I can’t find any info to say whether this is acceptable for building regs?
any advice or thoughts welcomed!