I have had a look in Part B Volume 1 and cannot see the answer, it could be that I'm in a fuss and not looking hard enough.
I have cased a 152x89x16UB on THREE sides with 12.5mm Gyproc Fireline. Well, the steel is actually encased in 25mm ply ( for some other reasons ) and then the fireline is clad onto that.
The steel is spanning 2m on an internal wall.
I suppose the issue lays around should is be providing 30 or 60 mins protection. Gyproc's documents say this provides 30mins protections ( White Paper - section C02.S03.P05 ). With
another 2.5mm making it upto 60mins.
Would the addition of the 25mm ply help - I've emailed Gyproc's tech department to see if that reveals anything.
Any comments ( within reason ) would be appreciated.
I have cased a 152x89x16UB on THREE sides with 12.5mm Gyproc Fireline. Well, the steel is actually encased in 25mm ply ( for some other reasons ) and then the fireline is clad onto that.
The steel is spanning 2m on an internal wall.
I suppose the issue lays around should is be providing 30 or 60 mins protection. Gyproc's documents say this provides 30mins protections ( White Paper - section C02.S03.P05 ). With
another 2.5mm making it upto 60mins.
Would the addition of the 25mm ply help - I've emailed Gyproc's tech department to see if that reveals anything.
Any comments ( within reason ) would be appreciated.