Plan Room Walls

[Triassic]

I have a small plant room in which I’ll be installing the Electrics, Sunamp, UFH manifolds, MVHR box, hot and cold water distribution manifolds etc. I was wondering what I should be covering the stud walls with, I suppose the choices are OSB, Plaster board, Firmcell or something similar. What has others used and why?

[ProDave]

I have left mine bare OSB.  BUT there may be BC issues with surface spread of flames and it may need painting with something.  I am hoping in my case it won't as it's a non habitable room above the garage behind a fire door.  If it is just a room off the house I would pretty well expect it needs panting if bare OSB.

 

If it's fixing things e,g pipes and cables you want, how about OSB then 9mm plasterboard directly on top. Screw / nail through the PB into the OSB.  It will look nicer than bare OSB and be easy to paint etc.

[NSS]

We have 22mm OSB covered with 15mm plasterboard. The OSB gives something firm to fix to and the plasterboard offers a level of fire control (we figured with the number of electrical devices/controls contained therein that it was prudent to do so).

[Triassic]

My plant room is in part of the basement containing two bedrooms and a lounge. Maybe rather than OSB covered plasterboard, I’ll go for Firmcell or similar render board to give me a fire proof finish, particularly as two walls are ICF.