In the event that bathroom situation crossed my desk I'd have to go with the lack of the 8 inch lintel as meaning the 'space with a toilet' is actually part and parcel to the adjoining space for purposes of number of design heads. We are calling it a room when it is really about the 'compartment'. The presence or absence of a door is irrelevant as the definition of the compartment for design area relies on walls for boundaries. Openings in those walls are unlimited in width provided a minimum 8 inch lintel is provided. The lintel is essentially the containment for the heat plume to prevent activation of heads remote from the fire which would deplete the water supply. Testing for residential listing on heads includes a 'dummy' head on the bottom of the lintel as a measure of whether heats leaves the compartment. If the heat fuses then the operating heads do not provide containment the test is failed.
Was this the question or was it more about can the lintel-less space with a toilet still be considered exempt at less than 55 ft2 ? Dave P. A NJ AHJ _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: techsupp...@firesprinkler.org To Unsubscribe, send an email to:sprinklerforum-requ...@firesprinkler.org (Put the word unsubscribe in the subject field)
