ALL THINGS FIRE PROTECTION | SUBSCRIBE NOW
|
A project that contains a light hazard office space with a dry-pipe sprinkler system, and a 900 sqft area with sloped ceilings (about a 5/12 pitch). Per NFPA 13, the remote area should increase by 30% for the dry system (NFPA 13-2013 Section 11.2.3.2.5) and another 30% for the slope (NFPA 13-2013 Section 11.2.3.2.4). However, does the fact that only 900 sqft of the entire remote area is sloped impact the overall size of the remote area at all? Curious in other's opinions.
Note: This is a Daily Discussion question submitted anonymously to us. Submit a Question or Discuss This Here.
1 Comment
Pete
8/31/2017 09:17:35 pm
It is my understanding that the increase in area for sloped ceilings is due to rather unpredictable pattern of sprinkler operations (see commentary in NFPA 13, Section 11.2.3.2.4). Since the sloped ceiling area (900 sf) is less than your system design area (1950 sf), it is my understanding that the additional area increase is not necessary. Leave a Reply. |
Free SignupSubscribe and learn something new each day:
CommunityThank You to Our Top
February '21 Contributors!
Your PostThe ToolkitSprinkler Designer or Engineer?
Get all of our tools, including the Sprinkler Database, Friction Loss Calculator, Fire Pump Analyzer and more: 
Filters
All
Archives
April 2021
Daily
Daily discussions are open-ended fire protection, fire alarm, and life safety questions submitted anonymously for the benefit of sharing expertise and learning from other perspectives. Anyone can submit a question here:
Exam Prep
2020 PE Prep Guide
(Available Now!) 
PE Prep Series
(Available Now!) 2020 PE Prep Series
Current Leaderboard (Click to enlarge) 
PE Problems
Visit July-October for daily Fire Protection PE Exam sample questions.
Solutions are posted the day after posting. Comment with your solutions, questions or clarifications. Please note that questions posted are unofficial and in accordance with NCEES rules are intended to be similar to actual exam questions, not actual exam questions themselves. |
RSS Feed
