Cracked hearth

[wanderer84]

Hi all,

I have a woodburner which sits on top of a slate hearth. This was installed 2 years ago. Recently a crack has appeared across the hearth beneath the burner. I will try and upload a photo. My best guess is that the slate was fixed in so tightly within the opening that a bit of expansion has caused it to crack, is this possible? Nothing that I know of has been dropped on to it or hit it.
It maybe worth noting that the fitters were far from perfect and tried to bodge a number of things.

Untitled

• wanderer84
• 26 Mar 2014
• 1

 

[Deluks]

http://www.stovefittersmanual.co.uk/articles/hearth-for-a-wood-burning-stove/

Do you have a proper constructional hearth underneath the slate?

 

[wanderer84]

I believe it is concrete beneath with the hearth laid on a sand & cement bed.

 

[Deluks]

Well it must be the heat then, or it might not be a thick enough slate.
Anyway, not worth worrying about really.

 

[wanderer84]

I can't see that its the heat from the burner as its appeared since the burner was last used. I can't say I'm worried but it does look shoddy

 

[Jamesymoon]

Black grout may help aesthetically?