Plasterboard behind wood burner?

[Greenbrigade]

Is it possible / safe to put plasterboard behind a wood burner / flue? At the moment it's exposed brickwork but wonder if it would be possible to tidy it up at all? TIA

 

[big-all]

no you need non combustible surface or fireproof board within something like 18" off the stove or flue dependent on recommendations off manufacturer

https://www.gov.uk/government/publi...-and-fuel-storage-systems-approved-document-j

 

[Greenbrigade]

Thank you. Can you plaster over the fireproof board?

 

[JohnD]

Plaster, and plasterboard, degrade from heat. The gypsum is hard because it combines with water, which is driven off by heat, and it crumbles. This is also why it is fire resistant, because it absorbs heat when the water is driven off. Close to your stove it may get very hot. I don't know the temperatures involved.

 

[StephenStephen]

I'm no expert, but I'm planning to plaster the wall behind my new woodburner, using hydraulic lime mortar straight on the wall - using NHL 2 natural hydraulic lime
the mix I'm planning is 1 lime to 2.5 sand. (I might get round to a lime putty skim on top for a finer finish, but will probably be happy not to). My understanding is that lime copes with heat better than gypsum, and I think also better than cement?

 

[Mr. Clueless]

Whether it is 100% bob on info or not i don't know but our fire installer told us that the board used in & around a stove has to be "A1 rated". I'm sure that's the term he used.

He gave it various names but the one we used was MAG PLY. I think it's about 12mm - 12.5mm thick. Was fine to paint direct to the board.

This MAG PLY board is not like your standard plasterboard either by the way.

 

[Robbie uk]

Vermiculite, Master Board are a couple of heat proof boards that can be used. Only need a coat of emulsion on them to finish. No need to plaster.