Tag Archives: Obstruction

Got Obstructions?

How to Get Them Before They Get You! I had a great dream the other night. We had just completed a flawless installation. We had coordinated every detail with the design team up front. The MEP foremen had worked with us every step of the way. The architectural and structural …

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Obstruction Rules for CMSA Sprinklers

Some Parts are Missing The 2010 edition of NFPA 13, Standard for the Installation of Sprinkler Systems, introduced a new definition “Control Mode Specific Application (CMSA) Sprinklers.” This was a composite of the earlier definitions that included Large Drop Sprinklers, Special Sprinklers, and Specific Application Control Mode Sprinklers. The Section …

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