Hass Posted March 17 Share Posted March 17 Good Afternoon i was wondering if there was a way to find out if a ceiling plasterboard is fire rated? (already plastered and painted) Link to comment Share on other sites More sharing options...
Russell griffiths Posted March 17 Share Posted March 17 30minutes I believe new board and skim is rated at. Link to comment Share on other sites More sharing options...
ETC Posted March 17 Share Posted March 17 Rubbish. Link to comment Share on other sites More sharing options...
BotusBuild Posted March 17 Share Posted March 17 3 minutes ago, ETC said: Rubbish ? What ? Why? Link to comment Share on other sites More sharing options...
stu w Posted March 17 Share Posted March 17 55 minutes ago, Hass said: Good Afternoon i was wondering if there was a way to find out if a ceiling plasterboard is fire rated? (already plastered and painted) Take the light fitting down , if there is one ? And you should be able to identify the current board Link to comment Share on other sites More sharing options...
Hass Posted March 17 Author Share Posted March 17 What i mean is, is there a way to check a ceiling has plasterboard that is fire rated? i understand usually before skimmed its seen as pink, but is there a way to check years later. If the board is standard or fire rated? Link to comment Share on other sites More sharing options...
Hass Posted March 17 Author Share Posted March 17 Unfortunately spot lights and skimmed, cant tell the colour? any other way? Link to comment Share on other sites More sharing options...
stu w Posted March 17 Share Posted March 17 1 minute ago, Hass said: Unfortunately spot lights and skimmed, cant tell the colour? any other way? Take a spot light out , or floorboard up above, if it's two storey. Failing that core a small piece out to check and patch it once checked Link to comment Share on other sites More sharing options...
ETC Posted March 17 Share Posted March 17 2 hours ago, BotusBuild said: ? What ? Why? Plasterboard on its own will not give you fire resistance. Link to comment Share on other sites More sharing options...
Alan Ambrose Posted March 17 Share Posted March 17 OK let me ask the dumb question, I thought that's one of the reasons we love plasterboard in the UK? Link to comment Share on other sites More sharing options...
MikeSharp01 Posted March 17 Share Posted March 17 33 minutes ago, ETC said: Plasterboard on its own will not give you fire resistance. I thought that 12mm of pink fire rated stuff was 30 minutes on its own with the grey being 30 minutes when skimmed. Perhaps we are talking at cross purposes somewhere or maybe I have wrong. Link to comment Share on other sites More sharing options...
nod Posted March 17 Share Posted March 17 3 hours ago, Hass said: Good Afternoon i was wondering if there was a way to find out if a ceiling plasterboard is fire rated? (already plastered and painted) There all fire rated For at least 30 minutes 1 Link to comment Share on other sites More sharing options...
ETC Posted March 17 Share Posted March 17 2 hours ago, MikeSharp01 said: I thought that 12mm of pink fire rated stuff was 30 minutes on its own with the grey being 30 minutes when skimmed. Perhaps we are talking at cross purposes somewhere or maybe I have wrong. Fire resistance will only be achieved when used as part of a built system. Link to comment Share on other sites More sharing options...
ETC Posted March 17 Share Posted March 17 2 hours ago, nod said: There all fire rated For at least 30 minutes Nope. Need to be incorporated into a tested construction. Link to comment Share on other sites More sharing options...
nod Posted March 17 Share Posted March 17 17 minutes ago, ETC said: Nope. Need to be incorporated into a tested construction. 😂😂😂😂 1 Link to comment Share on other sites More sharing options...
nod Posted March 17 Share Posted March 17 19 minutes ago, ETC said: Nope. Need to be incorporated into a tested construction. All ceilings have to have a minimum of 30 minutes fire rating A standard 12.5 mil pb will achieve this without any other fireproofing measures 1 Link to comment Share on other sites More sharing options...
BotusBuild Posted March 18 Share Posted March 18 This is exactly what I believe to be true - glad I asked for "clarification" of the one word statement 🙂 Link to comment Share on other sites More sharing options...
saveasteading Posted March 18 Share Posted March 18 14 hours ago, ETC said: Plasterboard on its own will not give you fire resistance. Yes it will. All and any plasterboard provides significant fire resistance 11 hours ago, ETC said: used as part of a built system As opposed to sitting at the builders merchant? 1 Link to comment Share on other sites More sharing options...
mike2016 Posted March 18 Share Posted March 18 Pick a room. Set fire in it, close door. Time for 30 minutes. Open door and attempt to put out fire. Compare result to the following: A. Room destroyed but fire could be put out before penetrating through ceiling / walls = success. You have 30 minute fire rating including plasterboard. B. You lose the whole house to fire = failure. Please rebuild and repeat test until successful. Only tests conducted on 32nd of each month are acceptable for insurance claim purposes. Please make sure all cats in the area are suitably wet before commencing test as they like a good fire. 2 Link to comment Share on other sites More sharing options...
saveasteading Posted March 18 Share Posted March 18 4 minutes ago, mike2016 said: Set fire in it, close door. That's the difference between lab test and reality. Lab test is a fire breaking through a construction that has been presented to meet a minimum requirement. I've met the experts who told me that the tests cease at the pass time even if still robust. Also that timber stud does not fail at exposed studs, ie when not jointed. It chars and self protects, plus the pb gives off moisture. But that we should still follow the spec. Link to comment Share on other sites More sharing options...
ETC Posted March 18 Share Posted March 18 2 hours ago, saveasteading said: Yes it will. All and any plasterboard provides significant fire resistance As opposed to sitting at the builders merchant? Rubbish. Link to comment Share on other sites More sharing options...
ETC Posted March 18 Share Posted March 18 (edited) 13 hours ago, nod said: All ceilings have to have a minimum of 30 minutes fire rating. No - a first-floor floor construction in a two storey dwelling needs the fire resistance. Take a look at British Gypsum’s White Book. A standard 12.5 mil pb will achieve this without any other fireproofing measures. No it won’t - you will need floor joists and floor boarding above and you’ll need to tape and fill the joints or skim. Rubbish. Edited March 18 by ETC Link to comment Share on other sites More sharing options...
ETC Posted March 18 Share Posted March 18 Link to comment Share on other sites More sharing options...
saveasteading Posted March 18 Share Posted March 18 27 minutes ago, ETC said: Rubbish I assure you it isn't rubbish. I wonder at your certainty and out-spokeness. Maybe you went on a different Fire Engineering course. But I'm not saying that any of us, even with expertise, should veer off the white book and equivalents. Link to comment Share on other sites More sharing options...
BotusBuild Posted March 18 Share Posted March 18 So @ETC, the OP's question, assuming that the PB is fitted to appropriate joists (they state its a ceiling), and they later state it is skimmed, then we are safe to say they have 30 minute fire rating. Shall we agree and all move on? 2 Link to comment Share on other sites More sharing options...
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