I have a standpipe on the intermediate landing of each of the two stairs with a fire hose valve per the ahj.
Fire sprinkler roof manifold.
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Hose stations accessories.
The purpose of the roof manifold is to test the standpipe demand and test fire pump at roof if applicable.
This would save me from having to run the supply for the rm up the underside of.
Can i eliminate the roof manifold in the stair that accesses the roof by providing an additional fhv at the top of the standpipe on the intermediate landing.
Use either straight and angle type globe or gate type hose valves for flow control.
Cast brass construction with a female npt inlet and male npt or nst outlets.
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One link of many in the chain of wildfire survival in the face of an advancing wildfire a structure with a properly implemented fire smart program in combination with a rooftop sprinkler system has a survival probability of above 90.