We've just had a wood burning stove installed in front of a blank wall, but the wall seems to get pretty hot directly behind the blanked off outlet for a rear flue. I'm thinking of putting up some 12mm slate tiles (to match the slate hearth) as a way of protecting the wall, but I can't find any definitive information about whether a standard slate floor tile would be sufficiently heat resistant to be useful.
Anyone done similar?
what is the current surface?
Its supposed to be a non combustible service within certain range of the stove and single skin flue pipe. You can get a cementious board to replace any gypsum with (gypsum plasterboard is not non-combustible apparently?)
Slate tiles will be OK, but if the surface onto which they are mounted is not approved then it wont solve the regs issue unless you add a 1/2" air gap between the slate tiles and the non combustible surface I gather.
gyproc was stripped out and replaced with scamolex board by the installer, then has some kind of skim over the top - not sure what, but it's a red brown colour so not standard gyproc plaster (might be fire cement). It's the skim that's cracking slightly directly behind the vent, and I want to put something up to protect it.
Part of the difficulty is that the scamolex board is apparently quite brittle, so the installer warned against trying to drill it or fix things to it - I'd originally thought of getting another solid piece of slate to sit against the wall, but there would be no way of fixing it in place.
I'd originally thought of getting another solid piece of slate to sit against the wall, but there would be no way of fixing it in place.
if it was a single piece you could just adhere it to the back board with a thick tile adhesive bed or maybe some bonding compound?
if it's just gone in the skim will crack a bit as it dries out fully. How close to the stove is the surface as there is a minimum distance you should leave. Slate would be fine.... it's not going to get that hot.
My woodburner sits on a concrete hearth covered in slate tiles, with slate tiles on the wall behind it. Got about 6" clearance at the back. Five years in, no problems.