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Hi Everyone,
I've bought four sheets of calcium silicate board for use under the hearth. Are they normally completely flat? Mine are smooth on the surface, but warped to the point where they will rock back and forth if I put them down with a gap of around 1cm or more between the highest and lowest points.
My question is: Is this normal? If not, then is there any way to flatten them or should I just return them?
Cheers,
Scott.
I've bought four sheets of calcium silicate board for use under the hearth. Are they normally completely flat? Mine are smooth on the surface, but warped to the point where they will rock back and forth if I put them down with a gap of around 1cm or more between the highest and lowest points.
My question is: Is this normal? If not, then is there any way to flatten them or should I just return them?
Cheers,
Scott.
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