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Thread: fire rating ceiling
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16th November 2008, 06:50 AM #1
fire rating ceiling
Hi All
I have a job where we have to fire rate an existing ceiling.
Presently the ceiling has 10mm gyprock attached in the standard way, namely nails and glue.
The prescribed method for attaching 16mm fire stop is to screw at 200mm centers with the two layers overlapping etc.
The question is rather than ripping down the existing gyprock can I just screw up the existing gyprock to negate the glue use in fixing the original layer and then ignore it in the fixing of the 2 layers of fire stop? I want to do this rather than create a lot of mess and dust (not to mention the landfill).
I spoke to CSR help desk but they just reverted to the manual:no::~
Any other experience out there?
Cheers
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