NFPA 13 2025 has some new criteria for obstructed construction, but I am not following what they mean by "50 Percent Open" Can any explain or know what they are referring to?
"Obstructed Construction Less than or Equal to 50 Percent Open for Ceilings with Slopes Not Exceeding 1 in 12" Joe Burtell Design Manager D C 406-204-4653 406-861-4507 3004 1st Ave South Billings, MT 59101 Office: 406-652-7697 www.summitfiresecurity.com This information transmitted, including attachments, is intended only for the person(s) or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender and destroy any copies of this information.
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