Trowel Trades

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Trowel Trades

April 17, 2025
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Bricklayers, sometimes known as masons, are skilled craftsmen that must be physically fit, have a high level of mathematical skill and a love for precision and detail.

 

Bricklaying standards are guidelines and specifications that ensure the quality and safety of bricklaying work. These standards are often established by industry organizations, regulatory bodies, or national building codes. While specific standards may vary by region, some core bricklaying standards include:

Building Codes: Compliance with local building codes is essential. These codes provide regulations for construction practices, including specifications for masonry work. Bricklayers must adhere to the building codes relevant to the specific location of the construction project.

ASTM International Standards: ASTM International (formerly known as the American Society for Testing and Materials) develops and publishes technical standards for various industries, including construction. ASTM standards related to bricklaying cover materials, testing procedures, and construction practices.

Masonry Construction Standards: Organizations like the Masonry Standards Joint Committee (MSJC) in the United States publish standards specifically focused on masonry construction. These standards address topics such as mortar, grout, reinforcement, and structural design considerations.

Quality Control: Standards related to quality control in bricklaying include specifications for mortar mixtures, proper curing of masonry, and guidelines for inspecting finished work. Adherence to these standards helps ensure the durability and longevity of the masonry construction.

Safety Standards: Occupational safety standards, such as those outlined by the Occupational Safety and Health Administration (OSHA) in the United States, are critical for protecting workers on construction sites. These standards cover aspects like fall protection, scaffolding safety, and the proper use of personal protective equipment.

Brick and Block Standards: Standards related to the dimensions, composition, and properties of bricks and concrete blocks are important for achieving structural integrity. These standards specify characteristics such as compressive strength, absorption, and dimensional tolerances.

Construction Tolerances: Tolerances dictate acceptable variations in dimensions and alignments in bricklaying work. These standards help ensure that the finished structure meets design specifications and industry-accepted tolerances.

Testing and Inspection: Standards related to the testing and inspection of masonry work help verify that construction meets specified requirements. This includes procedures for mortar testing, grout testing, and overall quality inspections.

It’s important for bricklayers and construction professionals to be aware of and follow these standards to guarantee the safety, quality, and compliance of their work. Additionally, staying informed about updates to industry standards is crucial as they may evolve over time to reflect advancements in materials, techniques, and safety practices.

St. Olaf College | Dakota County Minnesota

International Building Code Chapter 21: Masonry

Installer Tile Specialist Installation Standards

April 17, 2025
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Installer Tile Specialist (ITS) Installation Standards Verification (English)

“Faith of our Fathers”

April 15, 2025
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“Faith of Our Fathers” is a hymn written in 1849 by Frederick William Faber, a Catholic priest, to honor the steadfast faith of Catholic martyrs, particularly in England during times of persecution. Set to the tune “St. Catherine,” it celebrates the enduring legacy of faith passed down through generations, emphasizing resilience against adversity. The lyrics reflect themes of sacrifice, courage, and devotion, urging believers to uphold their faith despite challenges.

Originally Catholic, the hymn has been adapted by various Christian denominations, symbolizing a universal call to remain steadfast in spiritual conviction, inspired by ancestral faithfulness.

Standards Illinois

Electrical Meter Center Manufacturing

April 15, 2025
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* See Footnote below

Underwriters Laboratories Standard for Safety for Panelboards (UL 67) articulates product specifications for a central feature of all building power chains.   Panelboards are first entry of electrical energy in a residence, for example; and are found everywhere in education and healthcare facilities classified as commercial, industrial and institutional occupancies.  Panelboards divide the power chain into subsidiary circuits, while providing a protective fuse or circuit breaker for each circuit in a common enclosure.  Some panelboards — such as those classified as service entrances for residences — have main breakers positioned ahead of all downstream branch circuit breakers that must meet rigorous current interruption requirements.

Panelboards are continually improving and therefore the matrix of safety standards are revised continually; notably there installation safety requirements in the National Electrical Code.  The redline is available at two places on the internet; linked below:

ANSI Standards Action | Pages 42-43

Comments are due November 3rd.  You may send comments (with optional copy to psa@ansi.org).   It is best to set up your own (free) account at the link below:

UL’s Collaborative Standards Development System (You will need to set up an account)

You may also find the correlating section of the most recent update of the National Electrical Code — Section 230.71(B) — at the link below:

Michigan Electrical Code 2023

The most significant change to the NEC that now appears in its 2020 revision requires that each service disconnecting means and its associated overcurrent devices be located within a separate compartment; to wit:

“…Each compartment shall be constructed to prevent inadvertent contact with live parts such that with the service disconnect in that compartment in the off position, no ungrounded uninsulated live part is exposed to inadvertent contact by persons while servicing any field connected load terminal, including a neutral load terminal, a branch circuit equipment grounding terminal, or the neutral disconnect link. Exposure to inadvertent contact is determined by use of the probe illustrated in Figure 6.1. lf restriction to the compartment is dependent on the installation of field installed service conductors, conductors sized in accordance with 12.1.10 shall be installed in the terminals when determining exposure to inadvertent contact. All live parts including the connector bodies and pressure screws shall be evaluated…”

Proposals of this nature, in this section and elsewhere in related sections, have appeared in proposed changes to the NEC for many revision cycles.  You can sample the specifics in the links below:

Article 230 of the NEC has always been a lively “promontory” in leading practice discovery because service panels — where meters are located — are usually the locus of the maximum amount of energy entering a building.  In most new installations, this change will not be visible because its effect will be in product specification for buildings that require meter banks; most likely stand-alone student residence facilities.   In legacy residential installations, however, this change may expand the scope of electrical rehabilitation projects.

We generally place product standards action in the lower tier of our priority list but because this is likely to raise the cost of the product — and to inform insurance underwriting criteria — we take special note of it.  There will legions of NEC trainers that will sweep through the land for the next 3 years to explain in more detail.  Advocacy activity we may contemplate for the 2023 NEC, if any, will be coordinated with the experts in the IEEE Education & Healthcare Facilities Committee which meets online 4 times monthly in the Americas and Europe.  Our electrical power teleconferences are hosted on the same day.   See our CALENDAR for the next meeting; open to everyone.

 

Issue: [19-143]

Category: Electrical, Energy

Colleagues: Mike Anthony, Jim Harvey, Glenn Keates, Jose Meijer

*The change to UL 67 deals specifically with the manufacture (and ultimately, specification) of meter centers.   There are no images to show what product classes are effected so we keep things light with another historical image tracking the evolution of the electrical power industry.   For more information you may use the search term “meter center” to find various manufacturer product offerings.

 

Early Childhood Development Centers

April 14, 2025
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The University of Notre Dame and St. Mary’s plan construction next year on a new on-site facility to provide child care for faculty, staff and students with children between the ages of 6 weeks and 3 years old.  Growing out of the recommendations of a faculty and staff committee charged with looking at child care assistance opportunities, the new facility will open in summer 2025 and be operated by KinderCare, the nation’s largest child care and early education provider.

The center will be located on the north edge of campus near White Field, adjacent to Beichner Hall and The Landings at Notre Dame apartments.

The Early Childhood Development Centers at Notre Dame and Saint Mary’s College will continue to offer early childhood programs for children age 2 through kindergarten and will work in collaboration with KinderCare.

“We welcome KinderCare to the Notre Dame campus. Infant care is greatly needed in our community, and we are pleased that the University continues to support families’ needs for quality early childhood care and education. We look forward to continuing our mission to provide the community with high-quality accredited preschool and kindergarten programs at our two ECDC campus sites,”

— Kari Alford, Executive Director.

Standards Indiana


The De-Population Bomb

Life Safety Code

April 14, 2025
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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 First Draft of the 2027 Revision will be received until June 3, 2025.

 

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

Evensong “Melody in F”

April 13, 2025
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Evensong services are typically held in cathedrals, collegiate chapels, and large parish churches, where choral music plays a prominent role. These services often feature the singing of psalms, choral anthems, hymns, and other sacred music.  The Evensong tradition holds a significant place in Western civilization due to its historical and cultural importance. It has provided a space for prayer, reflection, and worship for centuries, connecting individuals with their faith and providing a sense of spiritual solace.

The beauty and solemnity of the music performed during Evensong services have also contributed to the development of Western sacred music, with composers creating choral works specifically for these occasions.

Polska

History of Western Civilization Told Through the Acoustics of its Worship Spaces

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