Gas system pressure on windows

[Chris Houston]

I surveyed a site today.  The building had a semi circular room in the middle that was obvioulsy designed as an office for top brass but was actually used as an IT suite.  Most of the walls are glazed.  The room is protected by an Inergen fire supression system.  It does not have pressure venting.  

Is there any risk that the fire supression could blow out the glazed walls?

Hope this isn't too much of a daft question.

[kurnal]

There should always be pressure venting for an inergen system. The installer should be contacted as a matter of urgency to confirm what arrangements have been made or to demonstrate that pressure relief arrangements are not required  to cater for the considerable positive pressure changes that will occur on release of the gas. See BS ISO 14520:  Gaseous fire-extinguishing systems – Physical properties and system design

[messy]

I once encountered an art storage warehouse where they stored the most valuable stuff inside an inner room constructed of lightweight blocks with a roof made from plywood nailed into  timber wallplates. More stock was stacked on the flat roof

There was a gaseous system (can't remember which type) and when I asked about venting, the RP went a bit pale. Sure enough, when he contacted some competent engineers, they confirmed that any actuation would have probably blown the lightweight walls out making the inner wall 'building collapse on several  £millions worth of (UK Govt) owned artwork. -oops