Author Archives: mike@standardsmichigan.com

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Life Safety Code

Today at the usual hour we sort through the NFPA stack for fire safety system aspects during renovation, alteration, or rehabilitation of buildings.  Two sections come to mind:

Chapter 43 (NFPA 101): Building Rehabilitation

 

NFPA 241: Safeguarding Construction, Alteration, and Demolition Operations
Use the login credentials at the upper right of our home page.

Educational and Day-Care Occupancies (July 23, 2025 Second Draft Transcript)

The Life Safety Code addresses those construction, protection, and occupancy features necessary to minimize danger to life from the effects of fire, including smoke, heat, and toxic gases created during a fire.   It is widely incorporated by reference into public safety statutes; typically coupled with the consensus products of the International Code Council.   It is a mighty document — one of the NFPA’s leading titles — so we deal with it in pieces; consulting it for decisions to be made for the following:

(1) Determination of the occupancy classification in Chapters 12 through 42.

(2) Determination of whether a building or structure is new or existing.

(3) Determination of the occupant load.

(4) Determination of the hazard of contents.

There are emergent issues — such as active shooter response, integration of life and fire safety systems on the internet of small things — and recurrent issues such as excessive rehabilitation and conformity criteria and the ever-expanding requirements for sprinklers and portable fire extinguishers with which to reckon.  It is never easy telling a safety professional paid to make a market for his product or service that it is impossible to be alive and safe.  It is even harder telling the dean of a department how much it will cost to bring the square-footage under his stewardship up to the current code.

The 2021 edition is the current edition and is accessible below:

NFPA 101 Life Safety Code Free Public Access

Public input on the 2027 Revision will be received until June 4, 2024.  Public comment on the Second Draft 2027 Revision will be received until March 31, 2026.

 

Since the Life Safety Code is one of the most “living” of living documents — the International Building Code and the National Electric Code also move continuously — we can start anywhere and anytime and still make meaningful contributions to it.   We have been advocating in this document since the 2003 edition in which we submitted proposals for changes such as:

• A student residence facility life safety crosswalk between NFPA 101 and the International Building Code

• Refinements to Chapters 14 and 15 covering education facilities (with particular attention to door technologies)

• Identification of an ingress path for rescue and recovery personnel toward electric service equipment installations.

• Risk-informed requirement for installation of grab bars in bathing areas

• Modification of the 90-minute emergency lighting requirements rule for small buildings and for fixed interval testing

• Modification of emergency illumination fixed interval testing

• Table 7.3.1 Occupant Load revisions

• Harmonization of egress path width with European building codes

There are others.  It is typically difficult to make changes to stabilized standard though some of the concepts were integrated by the committee into other parts of the NFPA 101 in unexpected, though productive, ways.  Example transcripts of proposed 2023 revisions to the education facility chapter is linked below:

Chapter 14 Public Input Report: New Educational Occupancies

Educational and Day Care Occupancies: Second Draft Public Comments with Responses Report

Since NFPA 101 is so vast in its implications we list a few of the sections we track, and can drill into further, according to client interest:

Chapter 3: Definitions

Chapter 7: Means of Egress

Chapter 12: New Assembly Occupancies

Chapter 13: Existing Assembly Occupancies

Chapter 16 Public Input Report: New Day-Care Facilities

Chapter 17 Public Input Report: Existing Day Care Facilities

Chapter 18 Public Input Report: New Health Care Facilities

Chapter 19 Public Input Report: Existing Health Care Facilities

Chapter 28: Public Input Report: New Hotels and Dormitories

Chapter 29: Public Input Report: Existing Hotels and Dormitories

Chapter 43: Building Rehabilitation

Annex A: Explanatory Material

As always we encourage front-line staff, facility managers, subject matter experts and trade associations to participate directly in the NFPA code development process (CLICK HERE to get started)

NFPA 101 is a cross-cutting title so we maintain it on the agenda of our several colloquia —Housing, Prometheus, Security and Pathways colloquia.  See our CALENDAR for the next online meeting; open to everyone.

 

Issue: [18-90]

Category: Fire Safety, Public Safety

Colleagues: Mike Anthony, Josh Elvove, Joe DeRosier, Marcelo Hirschler

More

ARCHIVE / Life Safety Code 2003 – 2018

 


Fire and Life Safety in Stadiums

“Kettle’s On” & Morning Shower

The Morning Coffee

Most people step into morning shower and pour their first drink take as read the water and energy standards that assure safety and reliability.  Today at the usual hour we refresh our understanding of the relatively stable stack of standards that are treated as given.  With links to the Alice Parker invention of home heating.  Use the login credentials at the upper right of our home page.

International Plumbing Code

Uniform Plumbing Code

Boiler & Pressure Vessel Code

Town Gas

Energy Standard for *Sites* and Buildings

Related:

ASSE 1016/1017 mixing valves to prevent scalds, and temperature guidelines balancing burn risks (max ~120°F at fixtures) against Legionella growth (storage ≥140°F).

NSF/ANSI 61/372 for drinking water safety.

 

 

 

Plumbing & Sanitation

“At the Water Trough” 1876 J. Alden Weir

Today we slice horizontally through several vertical catalogs that interact, cross reference and are fairly dynamic in their best practice discovery and promulgation. 

ASME A112.*| ASSE Series 5000 | AWWA| IAPMO | CISPI 301 Series | NSF Ann Arbor Michigan

Plumbing and sanitation systems in educational settlements – especially those with healthcare and research enterprises are intricately linked, ensuring clean water supply, waste removal, and public health. Plumbing systems deliver potable water to dormitories, academic buildings, dining halls, and recreational facilities through a network of pipes, pumps, and valves. (Kitchens).  These systems source water from municipal supplies or campus wells, often treated to meet safety standards (Backflow Prevention). Hot water heaters and pressure regulators maintain consistent supply for showers, sinks, and laboratories.

Sanitation systems, conversely, manage wastewater and sewage. They collect used water from toilets, sinks, and showers, channeling it through drainage pipes to campus treatment facilities or municipal sewer systems. Advanced campuses may employ on-site wastewater treatment plants, using processes like sedimentation and biological treatment to reduce environmental impact. Regular maintenance, including pipe cleaning and septic tank pumping, prevents blockages and contamination.

The interaction requires precise coordination. Plumbing systems must avoid cross-contamination with sanitation lines, using backflow preventers and proper pipe insulation. 

Sanitation systems rely on plumbing’s water flow to transport waste efficiently. On large campuses, high demand during peak hours challenges both systems, necessitating robust infrastructure. Sustainable practices, like low-flow fixtures and greywater recycling, enhance efficiency, reduce costs, and align with campus environmental goals, ensuring a hygienic and functional environment.

Join us today at 11 AM when we sort through the settled science and unsettled standards of care.  Use the login credentials at the upper right of our home page. 

Related:

Gallery: Great Lakes

DRINKING, WASTEWATER & STORMWATER SYSTEMS

Physical Security of Water Utilities

Backflow

Water and Sanitation

Boiler & Pressure Vessel Code

“Mechanic and Steam Pump” | Lewis W. Hine (1921)

 

The heating and cooling requirements of K-12 schools, college and university educational, medical research and healthcare delivery campuses are a large market for boiler pressure vessel manufacturers, installers, maintenance personnel and inspectors.  The demand for building new, and upgrading existing boilers — either single building boilers, regional boilers or central district energy boilers — presents a large market for professional engineering firms also.  A large research university, for example, will have dozens, if not well over 100 boilers that heat and cool square footage in all climates throughout the year.  The same boilers provide heating and cooling for data centers, laundry operations, kitchen steam tables in hospitals and dormitories.

The safety rules for these large, complex and frankly, fearsome systems, have been developed by many generations of mechanical engineering professionals in the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code (BPVC).   From the BPVC scope statement:

“…The International Boiler and Pressure Vessel Code establishes rules of safety — relating only to pressure integrity — governing the design, fabrication, and inspection of boilers and pressure vessels, and nuclear power plant components during construction. The objective of the rules is to provide a margin for deterioration in service. Advancements in design and material and the evidence of experience are constantly being added…”

Many state and local governments incorporate the BPVC by reference into public safety regulations and have established boiler safety agencies.  Boiler explosions are fairly common, as a simple internet search on the term “school boiler explosion” will reveal.  We linked one such incident at the bottom of this page.

University of Michigan Central Heating Plant

The 2023 Edition of the BPVC is the current edition; though the document is divided into many sections that change quickly.

ASME Codes & Standards Electronic Tools

ASME Proposals Available For Public Review

ASME Section IV: Rules for the Construction of Heating Boilers (2019)

Public consultation on changes to the BPVC standard for power boilers closes February 3rd.   

This is a fairly stable domain at the moment.  We direct you elsewhere to emergent topics:

Ghost kitchens gaining steam on college campuses

College: the Next Big Frontier for Ghost Kitchens

Illinois Admin. Code tit. 77, § 890.1220 – Hot Water Supply and Distribution

Design Considerations for Hot Water Plumbing

FREE ACCESS: 2019 ASME Boiler and Pressure Code (Section VI) 

Plumbing

 

 

Two characteristics of the ASME standards development process are noteworthy:

  • Only the proposed changes to the BPVC are published.   The context surrounding a given change may be lost or not seen unless access to previous version is available.  Knowledgeable experts who contribute to the development of the BPVC usually have a previous version, however.  Newcomers to the process may not.
  • The BPVC has several breakout committees; owing to its longer history in the US standards system and the gathering pace of complexity in this technology.

We unpack the ASME bibliography primarily during our Mechanical, Plumbing and Energy colloquia; and also during our coverage of large central laundry and food preparation (Kitchens 100) colloquia.  See our CALENDAR for the next online meeting, open to everyone.

Issue: [12-33] [15-4] [15-161] [16-77] [18-4] [19-157]

Category: District Energy, Energy, Mechanical, Kitchens, Hot Water

Contact: Eric Albert, Richard Robben, Larry Spielvogel

More:

Standards Michigan BPVC Archive

ASME BPVC Resources

Big Ten & Friends Energy Conference 2023

Standards Michigan Workspace (Requires access credentials from bella@standardsmichigan.com).

School Boiler Maintenance Programs: How Safe Are The Children? 

Boiler Explodes at Indiana High School


Heat Tracing Product Standard

Winter weather pipe-breaking and subsequent water flooding incidents on educational campuses around the world draw attention to Underwriters Laboratory product standard UL 515 Standard for Electrical Resistance Trace Heating for Commercial Applications which was last revised in July 2015.    From the home page of UL 515: the scope is as follows:

    (UL 515) requirements cover electrical resistance trace heating for commercial applications as applied to piping, vessels, traced tube bundles, and mechanical equipment. Trace heating includes heating panels and associated parts. This equipment is intended for installation in ordinary locations in accordance with the following installation guidelines:

  • National Electrical Code, ANSI/NFPA 70, Article 427
  • IEEE Standard for the Testing, Design, Installation, and Maintenance of Electrical Resistance Trace Heating for Commercial Applications, IEEE 515.1.

    Trace heating covered by this Standard is intended for applications where it is exposed to weather, unless specific markings and instructions limit the applications.

    Trace heating may be installed on metal or rigid plastic pipes. Unless specific recommendations are made for the plastic pipe material to be heated, plastic pipes are considered to have a maximum long-term thermal exposure limit of 50°C (122°F).

UL 515 is on a 5-year revision cycle; though comments on its improvement may be directed at any time to Julio Morales Julio.Morales@ul.com.    A review of the Standards Technical Panel suggests that User-Interest input — quite possibly product success and failure information — would be welcomed.   

In future posts, we will sort through the interdependency of related NFPA and ASTM standards on this technology

Issue: [18-10]

Category: Architectural, Electrical,  Structural, Facility Asset Managemet

Contact: Mike Anthony, Jim Harvey, Richard Robben


 

 

 

Electrical heat tracing: international harmonization-now and in the future

 

Electrical heat tracing: international harmonization-now and in the future

C. Sandberg

Tyco Thermal Controls

N.R. Rafferty – M. Kleinehanding – J.J. Hernandez

E.I. DuPont de Nemours & Company, Inc 

 

Abstract:  In the past, electrical heat tracing has been thought of as a minor addition to plant utilities. Today, it is recognized as a critical subsystem to be monitored and controlled. A marriage between process, mechanical, and electrical engineers must take place to ensure that optimum economic results are produced. The Internet, expert systems, and falling costs of instrumentation will all contribute to more reliable control systems and improved monitoring systems. There is a harmonization between Europe and North America that should facilitate design and installation using common components. The future holds many opportunities to optimize the design.

CLICK HERE to order complete paper

 


Heat Tracing Installation

Industrial electroheating and electromagnetic processing

Pipe Heating

Heat Tracing

Hot Water in North America

Estimating Daily Domestic Hot-Water Use in North American Homes

Florida Solar Energy CenterASHRAE Conference Paper

Danny S. Parker | Philip Fairey | James D. Lutz, PE

 

ABSTRACT. The WVU campus in Morgantown, located in north central WV is identified to have elevated heat flows by low-temperature geothermal play fairway analysis of the Appalachian basin. Along with the elevated subsurface heat flows, WVU also has surface demand necessary to develop a deep direct-use geothermal system in the eastern United States. West Virginia University is currently using a steam-based water heating system. This study focuses on converting the current heating system to a geothermal deep-direct-use district heating system.

A comprehensive evaluation of the current heating system is being conducted to determine the university’s heating energy demand. Energy demand is calculated for the whole campus based on the equipment survey and readings from the steam meters. Based on the steam meter readings, the approximate hot water usage of the whole campus is in the range of 10,000-12,000 GPM (gallons per minute). For buildings where there are no existing data or steam meters available, the energy usage is estimated using e-Quest. The tool e-Quest (Quick Energy Simulation Tool) is available through the U.S. Department of Energy and can provide monthly building energy usage data for comparison purposes.

The study includes an in-depth analysis of existing heating and cooling equipment, such as air handling units (AHUs) and heat exchangers, to determine their compatibility with hot water systems. The potential for retrofitting these systems to enhance energy efficiency, reduce operational costs, and contribute to the university’s sustainability goals is evaluated. This retrofit requires significant infrastructure changes, including installing new pumps, pipes, and heat exchangers. A detailed study for retrofitting was conducted on one of the buildings, which includes air handling units, pumps, valves, and expansion tanks.

The total retrofitting cost was found to be approximately $130,000. A preliminary hot water distribution model using Aspen HYSYS is developed, incorporating key system components like heat pumps and geothermal plate heat exchangers with a hot water distribution temperature of 180℉. Similarly, Aspen HYSYS models are developed to study and compare the normal hot water distribution model.

 

Florida

Florida’s campus coffee scene picks up influences from Gulf of America nations. Hot options are popular in winter, though iced drinks never fully disappear.

National Champions

 

Limestone

Standards Indiana

Indiana University’s Signature Limestone Building Architecture

Indiana University’s Bloomington campus is renowned for its signature architecture featuring Indiana limestone, a high-quality, light-colored stone (geologically Salem Limestone) quarried locally in nearby Monroe and Lawrence Counties. This durable, fine-grained material has been the dominant building stone since the late 19th century, creating a unified, harmonious aesthetic that blends seamlessly with the surrounding natural landscape.

The campus’s core, particularly the historic “Old Crescent” area, showcases buildings from various eras constructed almost entirely of this limestone. Styles range from Richardsonian Romanesque and Gothic Revival in early structures like Maxwell Hall (1890s) and the iconic Sample Gates (1987, Gothic-inspired arches), to Collegiate Gothic influences, Art Deco elements in mid-20th-century designs like Woodburn Hall (1940), and Classical touches in landmarks such as the Lilly Library (1960). Even modern additions often incorporate limestone cladding to maintain visual continuity.

This extensive use of local limestone not only reflects regional heritage and fire-resistant practicality but also contributes to the campus’s reputation as one of America’s most beautiful, with its pale, timeless facades enhancing green spaces and historic charm. (148 words)

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