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best choice for fire suppression system

  • 1.  best choice for fire suppression system

    Posted 04-03-2023 19:58

    Hey all,

    I'm wondering what the best choice is for fire suppression systems and what most folks have.  I would love to find a list of different types of fire suppression systems and where the sweet spot is in both protecting collections from fires and minimizing the amount of water damage.  On a budget, of course.  

    To give context: we have a lot of expensive preservation challenges with our facilities and one of our staff members is hung up on the fact that we have a wet-pipe system.  We have no pollution filtration or RH or light control right now.  I have 30x the light I should have in some areas and we drop to 16% humidity in the winter.  There are a lot of improvements needed in other areas, too, and I am working towards our desperately-needed first Long-Range Preservation Plan. 

    My gut says we have bigger fish to fry than to replace a functional fire suppression system with a more desirable one.  But maybe I'm wrong?  Is a wet-pipe system that awful in relation to so many other risks we haven't mitigated at all?  I'm trying to figure out how to point this out to her while I wait for us to be able to do a full preservation assessment, which I'm hoping will help make our priorities and time-frame for improvements clearer.

    Thanks!

    Jodi Lundgren
    Collections Manager
    Crazy Horse Memorial



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    Jodi Lundgren
    Collections Manager
    Crazy Horse SD
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  • 2.  RE: best choice for fire suppression system

    Posted 04-04-2023 09:33

    Hi Jodi,
    I am familiar with your site, and I agree with you that you are lucky to have a functional fire system and to tackle other issues. While I am not an expert, I have heard that fire systems are very reliable (when it comes to accidental discharges). While it does happen, it is not the sprinkler heads generally.

    I used to work at Minuteman Missile out near Philip, SD and we had a dry pipe system. When installed, the contractor used too thin a gauge pipe and it failed about 5 years ago. We were getting pinhole leaks about once a year when I was still there, releasing the air pressure and coming close to flooding the pipes. This incident happened after I left but it did flood the hallway of the historic structure and damaged paneling and other architectural features of the site. I saw a couple of photos and it was sad to see the damage that incident caused. What I have been told is that dry pipe systems can lead to corrosion in the pipe since it is flooded during testing, and you cannot get all of the water out. They replaced the system with another dry pipe system, but it is now filled with nitrogen to prevent corrosion. I don't know what the added expense for maintenance and upkeep of the system is but I suspect it will cost more than what you currently have.

    Simply, I agree that you should not fix what is not broken. This system has a life span, and you should be aware of that. Have your institution budget for that but until then keep what you have. Until then, tackle some of your other preservation issues, especially light. That was a question that I had going through your spaces in 2022. Best of luck.



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    Michael Hosking
    Museum Curator
    Harpers Ferry WV
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  • 3.  RE: best choice for fire suppression system

    Posted 04-06-2023 16:40

    Thanks for this insight, Michael!  I don't think we've had problems with our wet pipe systems at all.  It's good to better understand the risks and maintenance needs of dry-pipe systems.  How awful to have a dry-pipe system installed, thinking that it was safer than wet-pipe, just to have it fail and cause the damage you were so afraid of because of contractor error.  :(

    I'm fairly certain we have many bigger fish to fry here after hearing back from everyone.

    Jodi



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    Jodi Lundgren
    Collections Manager
    Crazy Horse SD
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  • 4.  RE: best choice for fire suppression system

    Posted 04-04-2023 11:01

    Hope I can help with my perspective. In my State, I help libraries and their staff manage their special collections materials.

    Wet pipe fire suppression systems have their issues but very well accepted in collections facilities. Fire risk is never zero and is potentially catastrophic to your collections. The general thinking about fire suppression is that you cannot recover ashes, but you can at least recover wet collections to some extent. So having fire suppression (potentially leaky and all) mitigates catastrophic risk even as it comes with other challenges. So those challenges have to be managed in order to further lower your overall risks.

    More broadly, preservation is all about risk management. Identifying what your biggest risks are, informally, even before a preservation assessment is performed, will be helpful to foster alignment among your staff. Consider recapping what you know and what you worry about (but don't yet know) in an informal, but documented, way, like a one-pager or shorter. There's a lot of risk assessment frameworks out there (see two links below) but they may be too much for you right now. 
    - risk_assessment_process_manual.pdf (arcsinfo.org)
    - Risk Evaluation Planning Program (REPP) (culturalheritage.org)

    What I might do, maybe, is make a preliminary report that describes in 2 paragraphs the risks for each and every room where collections are stored or exhibited, as best as you can figure. Essentially a running list of the risks to the collections in those rooms. Documenting them will help you think about how to balance them more professionally, and will welcome staff perspectives at the same time. Is there one room very prone to fire risk (next to a kitchen maybe)? Does another room have a history of leaks from the fire-suppression pipes? Do you have nitrate films in one room (where fire risk would be higher, and where temp control would be high priority)? What data do you need to make better decisions? 

    Putting this stuff to paper will also help you be more be more systematically pro-active in preservation - for example, with regard to a leaky pipe in a room, instead of wholesale building renovation to dry pipe systems (which aren't perfect either, and are not within the realm of near-term possibility, often), what about planning non-complicated room-specific measures, like simply moving collections away from the area, and/or making sure you have a small disaster-response/recovery kit on hand? Another example: do you worry about mold in a particular space but lack data? Identifying that "unknown" will help you realize that gap - to get better monitoring capability for that space. Enumerate the UV risks room by room - but also consider options to mitigate the damage - could you put collections in boxes, put up film, set up schedules, etc.?

    I share the following with my constituents, who tend not to be trained in archive/museum/rare book management, to help them think about preservation. Hope it's useful, even though you probably already know it, it's library-centric, and still sort of a work in progress. The 2 Preservation Priorities - Preservation in Massachusetts Libraries - Resource Guides at Massachusetts Board of Library Commissioners (state.ma.us).

    Best regards,
    Evan



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    Evan Knight
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  • 5.  RE: best choice for fire suppression system

    Posted 04-04-2023 18:45
    It sounds like a Collections Assessment for Preservation (CAP)  survey would be really helpful to help you get a handle on your collections care needs - and provide you and your staff with an idea of priorities.   Although the deadline has passed for this year, you might want to apply next year.

    The CAP program provides small and mid-sized museums with partial funding toward  a study of all of the institution's collections, buildings, and building systems, as well as its policies and procedures relating to collections care.   

    Here's the link to the AIC page with more info: https://www.culturalheritage.org/resources/collections-care/cap

    Stay safe,

    janice

    -- 
    Janice Klein
    Executive Director
    Museum Association of Arizona





  • 6.  RE: best choice for fire suppression system

    Posted 04-06-2023 16:41

    I did apply for a CAP this year, Janice!  I'm fairly new here--just over a year on the job.  They had never pursued one and I quickly realized we are long over-due for this kind of assessment.  I'm excited to get a long-range preservation plan in place.

    Jodi 



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    Jodi Lundgren
    Collections Manager
    Crazy Horse SD
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  • 7.  RE: best choice for fire suppression system

    Posted 04-06-2023 16:40

    Thanks for these resources Evan!  I applied for a CAP because we have so many risks I feel like I really need help prioritizing our efforts over the short-, mid-, and long-term in a long-range preservation plan.  Right now I am basically doing what you're saying, coming up with an informal tally of hazards and risks related to the ten agents of deterioration across all of our spaces.  This is the first time anyone here has dipped their toes into this process and we're pretty siloed so we're all in new territory here.  If I can steer it right I'm hopeful I can make big improvements in our collaborative preservation work here.

    Thanks again!

    Jodi



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    Jodi Lundgren
    Collections Manager
    Crazy Horse SD
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  • 8.  RE: best choice for fire suppression system

    Posted 04-04-2023 18:46

    Jodi,
    I agree with both of the earlier answers. At my State University museum we have a wet pipe system in our 12,000 square foot climate-controlled storage archive that holds more than 35,000 objects.Over the last few years our fire inspection reviewers made the recommendation to switch to a dry pipe system on a couple of occasions. Our facilities director and architect each explored the project with me at least twice based on the inspector's recommendation.  Each time I was able to demonstrate to them that the project could not be done with all of the museum objects on shelves in the archive and that the cost of packing, moving and storing all of the objects off site would be prohibitive. Installing the system is not the only cost.

    I agree with Michael. Don't fix what is not broken.





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    Erin Vigneau-Dimick
    Executive Curator
    Edwardsville IL
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  • 9.  RE: best choice for fire suppression system

    Posted 04-05-2023 11:51

    Hi Jodi,

    You have received much good information in other replies.

    I have helped dozens of organizations conduct quantitative risk assessments to hundreds of collection units, most of which were protected by automated wet pipe fire suppression systems. The specific risk of damage to collections due to wetting from accidental breakage of sprinkler heads or leakage from any part of the sprinkler system is almost always a very minor, usually trivial risk, provided the heating for the area is reliable (no frozen pipes) and sprinkler heads vulnerable to accidental contact are protected by cages.

    If you do not have independent monitoring of temperature with alerts sent if heating is lost overnight or over a weekend, then providing that, and protective cages on sprinkler heads, where needed, would be the only cost-effective risk mitigation measures I might suggest.

    Still, when you write: "My gut says we have bigger fish to fry than to replace a functional fire suppression system with a more desirable one.  But maybe I'm wrong?" I want to shout hurray for you! You are absolutely not wrong!

    I suggest considering a comprehensive collection risk assessment as described in: https://www.academia.edu/40296677/Waller_Chapter_4_Collection_Risk_Assessment

    Let me know if you have trouble downloading that and I can provide a copy.

    I'll be happy to discuss further with you if you want.

    Best,

    Rob

     

    Robert Waller, Ph.D., CAPC, FIIC
    President and Senior Risk Analyst
    Protect Heritage Corp.
    622 Simoneau Way
    Ottawa  ON  K4A 1P4
    email:
    rw@protectheritage.com
    internet: www.protectheritage.com
    phone: 613-883-2707 (Canada)
    phone: 303-872-9739 (USA)
    http://orcid.org/0000-0002-9500-4113

    skype: rrwaller

    Research Associate, Canadian Museum of Nature
    Adjunct Assistant Professor, Queen's University

     

                         

     






  • 10.  RE: best choice for fire suppression system

    Posted 04-06-2023 16:40

    Thanks for this resource!  The link works great.  We are definitely in need of a comprehensive risk assessment that will result in a long-range preservation plan.  It's a top priority for me to keep us on track for that.  We have so much room for improvement and so much need for it.

    Jodi



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    Jodi Lundgren
    Collections Manager
    Crazy Horse SD
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  • 11.  RE: best choice for fire suppression system

    Posted 04-04-2023 18:46
    Jodi. I would be happy to discuss by phone.  Below is a brief summary of fire protection for cultural heritage organizations.  In short, a wet pipe sprinkler system, properly inspected and maintained, along with appropriate smoke detection, is the standard for fire suppression for cultural heritage institutions. 

    Fire suppression and detection for cultural institutions is a complicated topic and the selection of a system depends on many factors including the NFPA codes, the building construction, archives and museum standards, and type of shelving used (fixed vs. mobile), and of course the types of collections.  There are a number of helpful resources that discuss fire protection and discussion with a fire protection engineer who has knowledge of the codes and requirements specific to irreplaceable collections is necessary. 

    In general, cultural institutions adhere to the following standards  from the National Fire Protection Association:
    • NFPA 13, Standard for the Installation of Sprinkler Systems
    • NFPA 232, Standard for the Protection of Records
    • NFPA 750, Standard for Water Mist Fire Protection Systems
    • NFPA 909, Code for the Protection of Cultural Resources – Museums, Libraries and Places of Worship
    • NFPA 914, Code for the Fire Protection of Historic Structures.
    • NFPA 2001, Standard on Clean Agent Fire Extinguishing Systems    
    While not all are updated, other helpful resources include those published by the National Park Service, the National Archives, Smithsonian, NEDCC, and Canadian Conservation Institute. 

    The two most common systems for cultural heritage facilities are wet pipe and single pre-action systems. Dry pipe is used when freezing is a concern, such as on a loading dock or in freezer storage.  Other more complex and costly systems used in cultural heritage facilities are clean agent systems (often with a back up wet pipe sprinkler system to protect the structure),  water mist systems and the hybrid Victaulic Vortex.  Note that the recommended clean agent, Novec 1230 by 3M, recently announced that they will no longer manufacture NOVEC 1230 by the end of 2025 due to the presence of PFAS.

    Please note that the standards for cultural facilities often specify more robust fire rated walls than those prescribed by the codes. 

    Wet pipe systems are the standard for the National Archives, Presidential Libraries, Library of Congress (which tried pre-action and replaced them because of defects), National Park Service, and Canadian cultural institutions. While some cultural heritage institutions insist on pre-action to prevent accidental discharge, the system comes with additional complexities. Issues to consider in deciding include:
    • Reliability: with fewer components, wet pipe are extremely reliable 
      •  "61% of sprinkler controlled fires are brought under control using two or less sprinklers." Other statics cite one to three heads to control fire.
    • Effectiveness:  pre-action are slower to discharge allowing wider fire spread; slower delivery of water = more destruction
    • Cost: pre action are more expensive to install and maintain
    • For Mobile Shelving: Wet pipe sprinklers are the only fire suppression that is supported by live fire tests and specified for mobile shelving. I can send copies of the data and testing results if you are interested. NFPS 13, 26.29.1.2.5 (2019) does not allow double-lock pre-action systems with compact mobile storage because of the delay in activation.  With the proscribed wet pipe sprinkler heads and early warning detection, the loss of materials is kept to under 300 cubic feet in a fire with mobile shelving. The system can extinguish the fire before the fire fighters come in with the high pressure hoses and create more water damage and damage to collections. 
    • Complexity: 
      • pre-action have a higher level of complexity and more mechanical parts 
      • pre-action have a longer shut-down time than wet pipe
      • wet pipes are easier to modify
      • wet pipes have shorter down time following a fire
    • Maintenance: wet pipes require less maintenance than pre-action
    • Risk of discharge:  While the risk does exist, failure rate of wet pipe sprinklers is low. Industry records note one in 16,000,000 heads discharge each year.  There are mitigation measures to lessen potential water damage.  Appropriate ones may include:
      • Zoned heads - there will not be a total deluge of water
      • Accessible water cut off valves
      • In collections storage - heads above shelving lessen risk of  staff accidents
      • Use of sprinkler cages for at-risk areas
      • Water detectors in at risk areas
      • Routine visual inspections

    MICHELE F. PACIFICO
    Archival Facilities Consultant
    PO Box 1490, Jackson, WY 83001
    301-908-8720






  • 12.  RE: best choice for fire suppression system

    Posted 04-06-2023 16:41

    Thank you for ALL of this Michele!  It's super helpful to have it all laid out for me like that.

    Take care,

    Jodi



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    Jodi Lundgren
    Collections Manager
    Crazy Horse SD
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