Plastering chimney breast for woodburner Q's

[leedavis88]

I have a plasterer due round in the next couple of weeks to plaster our living room. The fireplace has been brick lined with reclaimed brick and a hearth set ready for a multifuel stove.

Not sure wether the chimney breast should be dot dabbed or rendered. Any ideas where I could find some more definative info?

 

[Norcon]

Just plaster it with sand and cement and then skim.

 

[cotswoldbuilders]

Dot and dab is no good inside a fire opening due to the heat from the stove, sand and cement will blow.

You need a Heat resistant plaster such as Victas, or a Lime based render.

 

[Norcon]

Dot and dab is no good inside a fire opening due to the heat from the stove, sand and cement will blow.

You need a Heat resistant plaster such as Victas, or a Lime based render.

Read the op again.

The fireplace has been brick lined

Though I believe one part Gypsum with two parts Vermiculite (used for industrial fire proofing) is a good option for the stove enclosure.

I did mine with concrete because I love the stuff and am confident it will not blow.

 

[Ambergreen45]

Gypsum plaster could crack anywhere the temperature reaches 50+ celcius (it says it on the pack).

I haven't heard of mixing gypsum with vermiculite, so cannot comment.

Rendering with sand/cement should be ok above the fireplace, but not sure about the skimming if any. Vitcas can be expensive. I am using Natural Hydraulic Lime plaster, but if doing so make sure your plasterer gets a very basic knowledge on how to use it (from a supplier's helpline).