Expert Witness & Investigation of Glass Injury

Glass injuries, though seemingly straightforward, often involve complex factors that require thorough investigation. These incidents can arise from a variety of, or multiple sources, encompassing product, installation and environment. Understanding the different types of glass, the circumstances leading to breakage, and the relevant safety regulations is crucial for for effective legal or insurance claims and for preventing future glass injuries.

The Perils Of Exterior Glass

Exterior and interior glass, a ubiquitous feature in modern architecture, can pose significant risks of breakage injury if not properly specified, installed and maintained.

Window Glass

Window glass in homes and commercial buildings is always at risk. Accidental impacts, such as a child running into a window or objects hitting it, can cause shattering. Poor installation or structural shifts can make the glass more vulnerable to breakage. The dangers include not just the initial human impact but also the falling shards, which can result in serious injuries to passers-by.

Storefront Glass

Storefronts often use large glass panes for visibility, but are susceptible to accidental impacts that can create dangerous fragments when broken. A linked video highlights the hazards of falling through glass, emphasizing the need for safety measures. Storefronts also need to withstand wind loads, which are generally greater in storm-prone areas, necessitating specific glass types and installation methods.Storefront Glass

The Hidden Dangers of Interior Glass

While often perceived as less risky than exterior glass, interior glass installations can also be sources of serious injury.

Mirrors

Mirrors, whether wall-mounted or part of furniture, can break unexpectedly due to impact or improper mounting. Falling mirrors or shattered fragments can cause deep cuts and other injuries.

Shower Doors and Tub Enclosures

Bathrooms are a familiar source of interior glass injuries due to wet surfaces that increase fall risks and potential impacts with shower doors. Over time, exposure to operational forces along with hot and cold water can weaken glass fittings. Tempered glass shower doors can spontaneously break from manufacturing imperfections or installation stresses, resulting in small, cube-like pieces that can cause lacerations, abrasions and eye injuries.

The Hidden Dangers of Interior Glass

Glass injuries can manifest in several ways, often making the investigation complex.

Accidental Impact or Mild Contact

Many injuries stem from direct impact with the glass. This could be a person falling against it, an object striking it, or even a sudden force like a slammed door. What’s often overlooked is that even mild contact can cause an unexpected break if the glass is already compromised, improperly installed, or made of an inappropriate type for its location.

Accidental Detachment or Disengagement

Sometimes, the glass itself doesn’t break, but rather detaches or disengages from its frame or mounting, leading to a fall and potential injury. This can be due to faulty installation, inadequate hardware, or deterioration of the mounting materials over time.

Spontaneous Breakage

Glass can sometimes break unexpectedly without direct contact, especially with tempered glass. This phenomenon can be due to nickel sulfide inclusions, edge damage during installation. Although tempered glass is designed to shatter into small, safer pieces, the sudden breakage can still cause serious cuts, panic or falls, leading to secondary injuries.

Mirrors

Mirrors, whether wall-mounted or part of furniture, can break unexpectedly due to impact or improper mounting. Falling mirrors or shattered fragments can cause deep cuts and other injuries.

Shower Doors and Tub Enclosures

Bathrooms are a familiar source of interior glass injuries due to wet surfaces that increase fall risks and potential impacts with shower doors. Over time, exposure to operational forces along with hot and cold water can weaken glass fittings. Tempered glass shower doors can spontaneously break from manufacturing imperfections or installation stresses, resulting in small, cube-like pieces that can cause lacerations, abrasions and eye injuries.

Understanding the Mechanisms of Glass Breakage

Glass injuries can manifest in several ways, often making the investigation complex.

Accidental Impact or Mild Contact

Many injuries stem from direct impact with the glass. This could be a person falling against it, an object striking it, or even a sudden force like a slammed door. What’s often overlooked is that even mild contact can cause an unexpected break if the glass is already compromised, improperly installed, or made of an inappropriate type for its location.

Accidental Detachment or Disengagement

Sometimes, the glass itself doesn’t break, but rather detaches or disengages from its frame or mounting, leading to a fall and potential injury. This can be due to faulty installation, inadequate hardware, or deterioration of the mounting materials over time.

Spontaneous Breakage

Glass can sometimes break unexpectedly without direct contact, especially with tempered glass. This phenomenon can be due to nickel sulfide inclusions, edge damage during installation. Although tempered glass is designed to shatter into small, safer pieces, the sudden breakage can still cause serious cuts, panic or falls, leading to secondary injuries.

 

The Crucial Role of Safety Glazing Laws and Codes

Recognizing the inherent dangers of glass, building codes and safety glazing laws have been established to mitigate risks.

Mandated Safety Glass

Regulations often mandate safety glass, like tempered or laminated glass, in hazardous locations such as doors and low windows. Tempered glass is significantly stronger than regular glass and shatters into small, cubic pieces, while laminated glass features bonded panes with a plastic interlayer that greatly reduces dangerous fragmentation.

Non-Compliance and Its Consequences

A significant issue that arises in investigations is a failure to use safety glazing where required. This non-compliance may result from construction oversight, cost-cutting, or unauthorized changes. Regular glass in hazardous areas can break in large, dangerous shards, that can be life-threatening.

Injuries Even with Safety Glass

Safety glass reduces the risk of severe injury, but doesn’t eliminate it. Tempered glass can still fall in large chunks and cause deep lacerations, abrasions or eye injuries from fragments, while laminated glass may lead to blunt force trauma despite holding together.

The Challenges of Investigation and the Value of Expertise

Investigating glass injuries presents unique challenges, primarily due to the nature of the evidence.

Spoiled Evidence

When glass breaks, the immediate instinct is often to clean it up for safety. While understandable, this unfortunately spoils much of the critical evidence needed for a thorough investigation. The size, shape, and distribution of the glass fragments, as well as the condition of the frame and surrounding area, provide vital clues about the cause of the breakage.

Clues Amidst the Debris

Despite the challenges, experienced investigators can often find crucial clues. This requires a keen eye and a deep understanding of glass properties and installation techniques. Even small remaining fragments, impact marks on the frame, or witness accounts can piece together the sequence of events.

The Glazing Contractor and Glass Consultant Advantage

The content emphasizes the importance of a glazing contractor and glass consultant’s experience in investigations. Their expertise merges practical glass installation knowledge with a theoretical grasp of glass science and building codes, enabling a thorough analysis that legal or engineering knowledge alone may overlook.

Our Comprehensive Investigation Process

To ensure a thorough and accurate assessment of glass injury incidents, a systematic approach is essential. Our process encompasses several key areas:

  • Checking Building Codes for Safety Glazing Requirements

  • Checking Building Codes for the Need for Limited Sash Opening Devices

  • Checking Building Codes for Compliance with Wind Loads

  • Checking Building Codes for Hurricane or Blast Requirements

  • Inspecting the Site for Factors That Contributed to the Injury

  • Inspecting the Site for Quality of Maintenance

  • Reviewing the History of the Property for Prior Glass Replacement or Injury

  • Destructive Testing of Glass for Impact

  • Collecting Detailed Measurements of Glass, Hardware, and Other Involved Objects

  • Issuing Easy-to-Understand, Technically Supportable Reports Enhanced with Photos and Illustrations

In a Nutshell

Beyond investigating injuries, proactive glass safety checks are vital for property owners. Our “Glass Safety Check” service involves surveying properties to identify potential glass and mirror hazards before they lead to injuries. This preventative approach allows us to make tailored recommendations, from upgrading non-safety glass to implementing better maintenance practices, ultimately helping property owners make their property as safe as possible for occupants and visitors. By understanding the risks, adhering to codes, and conducting regular safety assessments, we can significantly reduce the incidence of glass-related injuries and create safer environments for everyone.

Contact us if you need help with a glass injury.