Fire rated plaster board query

[Luke Barnard]

Hi all,

I've a query about fire rated plaster board that I can't work out.

We are dry lining a little pottery studio for my partner, and because of the kiln thought it made sense to use fire rated plaster board over standard.

Selco sells Siniat standard board and Fireboards. Looking at these products, both appear to have the same fire rating of "A2-s1,d0":

https://www.siniat.co.uk/en-gb/prod.../standard-plasterboard/siniat-standard-board/
https://www.siniat.co.uk/en-gb/prod...ds/fire-performance-boards/siniat-fire-board/

I presume there must be more subtle differences than are summarised in the fire rating code - but it's not clear to me what those are. Any one able to shed any light on this? As the fireboards cost 50% more, if the difference is negligible I'd be happy going with the standard boards.

Cheers

 

[ChaiLatte]

Send your query to Siniat's technical dpeartment. That is what they are paid and qualified for, far more than anyone here.

The 15mm fire board achieves 60 min. resistance according to whatever code governs this. A 15mm layer of standard plasterboard won't do this - it would need greater thickness (multiple layers). Labour/installation cost of the extra thickness would exceed the material extra over cost.

Builders are the tightest people on earth. Do you think that if they could get away with putting on a single layer of standard board, they would buy even 1 square foot of the pink one?