When you should use a heat resistant plaster?


The answer to the above question seems to be easy only at the first glance, because basically you use heat resistant plaster everywhere, where the temperatures are higher than 50 degrees centigrade( we speak about the temperature of a wall, of course ).

That’ s not covering the whole problem,…

That’ s not covering the whole problem, though, because there are many situations, when the potential risk of gypsum plaster being not heat resistant enough comes to the play – for example when you install a new woodburner in some room and there’ s no guarantee that gypsum plaster will not fail.
Another matter is the problem of costs – thankfully in this case there’ s no great difference between a heat resistant plaster and a standard one.

Also the method of applying is practically exactly the same with the exception of two basic rules: firstly, the maximum thickness of heat resistant plaster can’ t be more than 6 mm if you want to have a reliable plastering done and secondly, you have to cover with a heat resistant plaster at least 3 meters of the wall around the fire opening to ensure that the whole plastering on the wall will stay on it.

So, in other words, you should use heat resistant plaster if you have in your apartment a fireplace( no matter if it is a standard one or a casette one ), chimney breast or a woodburner placed near the wall – in other cases typical gypsum plaster will be more than enough( it has heat resistance of about 50 degrees centigrade ).

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