Folks that have installed tile over plywood/cement board/other R rating boosting materials:
have you had problems with tiles cracking?
Is this due to uneven load bearing (more weight on one stove foot)?
Were the tiles fairly thin?
If the tile were say a full 1/2" thick- do you think that would solve the problem?
I assume that flat, inflexible substrate under the tile is pretty key
edit: full disclosure- I don't have cracking hearth tile but have heard the complaint before. I'm contemplating making tile, so am asking in order to gather experiences on this.
have you had problems with tiles cracking?
Is this due to uneven load bearing (more weight on one stove foot)?
Were the tiles fairly thin?
If the tile were say a full 1/2" thick- do you think that would solve the problem?
I assume that flat, inflexible substrate under the tile is pretty key
edit: full disclosure- I don't have cracking hearth tile but have heard the complaint before. I'm contemplating making tile, so am asking in order to gather experiences on this.