Understanding fire smoke standards

Understanding testing standards is essential for correctly designing and specifying systems that protect smoke barriers, smoke partitions, fire barriers, fire partitions, and firewalls.

At Door Systems we provide expert guidance in selecting, specifying, and installing fire-rated and smoke-rated door systems that comply with the latest testing standards. Our team ensures that your doors integrate seamlessly with fire and smoke barriers while meeting all regulatory requirements. Whether your project involves commercial buildings, healthcare facilities, educational institutions, mixed-use, multifamily, or industrial complexes, we offer a wide range of tested and certified products designed to enhance fire protection and life safety.

Defining Standards that are often mentioned but frequently confused or misinterpreted.

ASTM E84– Standard Test Method for Surface Burning Characteristics of Building Materials

ASTM E84 is a widely used test that evaluates materials’ flame spread and smoke development when exposed to fire. Conducted in a Steiner tunnel, the test measures how quickly flames spread across the surface of a material and the amount of smoke produced, assigning a Flame Spread Index (FSI) and Smoke Developed Index (SDI). This classification helps determine a material’s suitability for use in building construction, ensuring compliance with fire safety codes and regulations.

ANSI/UL 1784- Standard for Air Leakage Tests of Door Assemblies

UL 1784 evaluates the air leakage performance of door assemblies, including their ability to limit the passage of smoke and air under pressure differentials. This test is crucial for fire and smoke-rated doors, ensuring they help control the movement of smoke in buildings, especially in life safety applications. The standard measures air leakage rates at ambient and elevated temperatures, assisting in the classification and compliance of doors with building codes and fire protection requirements.

Both ASTM E84 and UL 1784 have been the industry standards for Elevator Smoke Containment, as defined in the International Building Code (IBC) 3006.3, Elevator hoistway door protection.

Door Systems provides Syntegra Elevator Smoke Doors or DSI-600 Smoke Curtains to satisfy the building codes’ requirements for eliminating elevator lobbies.

DSI-600 Vision Lite
DSI- 600 Elevator Smoke Curtain

Syntegra Integrated Fire Doors for Elevator Applications
Syntegra Integrated Fire Doors for Elevator Applications

While other manufacturers stop here, Door Systems has provided innovative solutions for almost 20 years. The introduction of UL 10D Fire Protective Smoke Curtains has been a fast-moving sector, ranging from elevator applications to atriums, mezzanines, and other large open spaces that need to mitigate the passage of smoke.

DSI 600 Garden Grove Smoke Curtain
DSI- 600 Fire Rated Elevator Smoke Curtain in Los Angeles, CA

4HR-Accordion Staircase Curtain
DSI-A4HR Accordion Fire-Smoke Curtain @ Escalator

DSI-C3HR Automatic Fire Protective Smoke Curtain @ Atrium
DSI-C3HR Automatic Fire Protective Smoke Curtain @ Atrium

UL 10D Fire Tests of Fire-Protective Curtain Assemblies

The UL 10D test requirements cover the evaluation of fire-protective curtain assemblies intended to provide supplemental, passive fire protection as part of an engineered fire protection system.

Fire-protective curtain assemblies are horizontally or vertically oriented. They provide nonstructural separation only and are not intended to substitute for structural hourly rated partitions or opening protectives that have been tested for fire endurance and hose stream performance.

Door Systems UL 10D Fire-Protective Curtain Assemblies are a great solution for containing smoke (UL 1784) and are recognized by the 2024 International Building Code (IBC), Chapter 7 Fire and Smoke Protection, 716.4 Fire protective curtain assembly.

Visit our UL 10D webpage for a complete vertical and horizontal smoke curtains list.

Furnace Test of Fabric Fire Curtain
Furnace Test of Fabric Fire Curtain

What is UL 10B with Hose Stream Test?

A more robust rating is generally required when opening protection is needed in fire walls, barriers, or partitions. That’s where Door Systems, as you covered with the introduction of UL10B Hose Stream Rated Curtain Products.

DSI-HS10B Hose Stream Rated Smoke and Fire Curtain

With a UL10B 3-hour fire rating, the DSI-HS10B Fire Curtain can be used in fire walls and fire barrier walls as a replacement solution to traditional Coiling Steel Fire doors.

DSI-HHS10B Hose Stream Rated Horizontal Fire Shutter

The DSI-HHS10B Hose Stream Rated Horizontal Fire Shutter allows architects to compartmentalize large floor openings, reducing the need for mechanical smoke evacuation systems.

DSI-FW119 Deployable Fabric Fire Wall

The DSI Deployable Fire Wall incorporates the cutting-edge technology of our Hose Stream Rated Smoke and Fire Curtain but with the advantage of being tested under UL 263, ASTM E119 as a 2-hour fire rated wall assembly.

DSI-HSM10B Manual Hose Stream Rated Smoke and Fire Curtain

With a UL 10B fire rating up to 180-minutes, the DSI-HSM10B Fire Curtain can be used in firewalls and fire barrier walls as a replacement solution to traditional Coiling Steel Fire Shutters using a fusible link with no need for electronics or fire alarm contact.

UL 10B Standard for Fire Tests of Door Assemblies

The UL 10B test exposes a specimen to a standard fire exposure controlled to achieve specified temperatures throughout a specified time period, followed by the application of a specified standard fire hose stream. These methods of fire tests are applicable to door assemblies of various materials and types of construction for use in wall openings to retard the passage of fire.

When applied to fabric fire curtains, these principles are crucial. Fabric fire curtains serve as flexible fire barriers, similar to fire doors, and must also undergo standardized testing to verify their fire resistance and durability. Like door assemblies, fabric fire curtains are evaluated for their ability to withstand fire for a designated period, ensuring they effectively compartmentalize fire and smoke in a building. While the testing conditions may not replicate all real-world fire scenarios, they offer a reliable benchmark for assessing the protective capabilities of fabric fire curtains in fire-rated applications.

Note: UL 10D Fire-Protective Curtain Assemblies tested to UL 10B are not limited in fire rating since they include the Hose Stream Test.

Hose Stream Test after Furnace Fire Test
Hose Stream Test after Furnace Fire Test

 

ASTM E2226 Standard Practice for Application of Hose Stream

ASTM E2226 establishes procedures for applying a fire hose stream to test specimens after fire exposure in fire resistance tests. This practice evaluates the structural integrity and durability of materials or assemblies by simulating the impact of firefighting efforts. The hose stream test helps determine whether a material can withstand mechanical and thermal stress, ensuring its reliability in real fire conditions.

What about oversized openings in Fire Barriers?

Is there a Fabric Fire Curtain that can overcome the limitations of IBC Section 707.6 Openings? : “Openings in a fire barrier shall be protected in accordance with Section 716. Openings shall be limited to a maximum aggregate width of 25 percent of the length of the wall, and the maximum area of any single opening shall not exceed 156 square feet (15 m2).”

The answer is Yes!

DSI Deployable Fabric Fire Wall

The DSI Deployable Fabric Fire Wall Model DSI-FW119 allows architects to exceed the maximum 25% fire barrier opening penetration restriction (IBC Section 707.6). Typical overhead or side-acting opening protectives with a fire-resistance rating fall into this limitation.

However, with an ASTM E119/ UL263 rating, the DSI Moveable Fabric Fire Wall is considered a wall and, therefore, meets the exception (Exception 3) and is not limited to this rule.

The DSI Moveable Fabric Fire Wall consists of two insulated DSI Hose Stream Rated Smoke and Fire Curtains mounted back-to-back to create a small, lightweight package above the ceiling that remains virtually invisible until deployed. The curtains consist of proprietary lightweight multi-layered insulated fire-rated fiberglass/stainless steel fabric and slim steel side guides that can be hidden in the walls.

The DSI ASTM E119 Fabric Fire Wall incorporates the cutting-edge technology of our Hose Stream Rated Smoke and Fire Curtain but with the advantage of being tested as a 2-hour fire-rated wall assembly. This allows architects more cost-effective options for open space design while still meeting code requirements.

DSI-FW119 Deployable Fabric Fire Wall

DSI-FW119 Deployable Fire Wall

DSI FW119 Jamb

DSI-FW119 Deployable Fire Wall

With our deep industry knowledge and commitment to quality, we can assist you in choosing the right materials, hardware, and installation methods to optimize your fire-rated assemblies. Additionally, we offer ongoing inspection and maintenance services to ensure continued compliance and performance throughout the life cycle of your building.

Let us help you navigate the complexities of fire door standards and ensure your next project is built to the highest safety standards.

Contact us today to schedule a presentation and learn more!

DSI-HHS10B Hose Stream Fire Shutter

The DSI Hose Stream Rated Horizontal Fire Shutter, a horizontal fabric fire shutter, allows architects to compartmentalize large floor openings and reduce or eliminate mechanical smoke evacuation systems. A solution to design challenges of preventing smoke and fire from spreading through the ceiling and atrium voids, stairwells, and skylights.

The UL 10B Horizontal Fire Shutter consists of a light gauge compact steel headbox that houses the roller, fabric, and motor within the casing to create a small package that remains virtually invisible until deployed. The curtain consists of a lightweight proprietary multi-layered fire-rated fiberglass/ stainless steel fabric and slim steel side guides.

The DSI-HHS10B Hose Stream Rated Horizontal Fire Shutter incorporates the cutting-edge technology of our UL 10D curtain products but with the advantage of being tested and labeled to 2 hours UL 10B with Hose Stream.

 

Photo of Cleveland Foundation Headquarters

Cleveland Foundation Headquarters

Atrium Photo of DSI-HHS10B Hose Stream Rated Horizontal Fire Shutter

Atrium Photo of DSI-HHS10B Hose Stream Rated Horizontal Fire Shutter

 

2024 International Building Code (IBC)

CHAPTER 4 SPECIAL DETAILED REQUIREMENTS BASED ON OCCUPANCY AND USE
404.6 Enclosure of atriums

Atrium spaces shall be separated from adjacent spaces by a 1-hour fire barrier constructed in accordance with Section 707 or a horizontal assembly constructed in accordance with Section 711, or both.

Atrium Photo: Photo Credit ICC - I Codes

Atrium Photo: Photo Credit ICC – I Codes

Video of Progress during Construction

 

 

Video of completed project

 

 

“I recently had a DSI UL 10B horizontal fire curtain installed at the Cleveland Foundation’s facilities, and I couldn’t be more pleased with the entire process. From start to finish, the project went incredibly smoothly. The team’s professionalism and attention to detail were outstanding, making the installation seamless and efficient. The fire curtain works perfectly every time and looks great. I am truly impressed with their work’s quality and commitment to customer satisfaction. I highly recommend Door Systems and their DSI smoke and fire curtains, and I look forward to using their services again.”

-Darryl Bradley, Facilities Director for the Cleveland Foundation

 

Code Updated for IBC 2024

CHANGE SIGNIFICANCE: Due to the limitations regarding the self-preservation capability of occupants in Group I-2 and Group I-1, Condition 2 occupancies, it has historically been important to limit smoke movement under fire conditions. The mandate for smoke compartmentation in such occupancies is a key concept in controlling the smoke movement. One of the basic premises of the atrium requirements is that an engineered smoke control system combined with an automatic fire sprinkler system that is properly supervised provides an adequate alternative to the fire-resistance rating of a shaft enclosure. It is also recognized that some form of a boundary is required to assist the smoke control system in containing smoke to just the atrium area. The basic requirement, therefore, is that the atrium space be separated from adjacent areas by fire barriers and horizontal assemblies having a fire-resistance rating of at least 1 hour.

Source: https://codes.iccsafe.org/content/IBC2024P1/chapter-4-special-detailed-requirements-based-on-occupancy-and-use#IBC2024P1_Ch04_Sec404.6

Architects Elevate Building Safety with Smoke Curtains

As an architect, you know the critical importance of fire safety in your building designs. That’s why I wanted to share an innovative solution that can help meet code requirements while elevating the aesthetics of your elevator shafts – Elevator Smoke Curtains.

Elevator Smoke Curtains offer a cost-effective and architecturally pleasing way to protect elevator shafts from the spread of smoke in the event of a fire. These advanced curtains are designed to:

• Fully comply with all relevant fire and building codes
• Disappear discreetly into the ceiling when not in use
• Automatically deploy in the event of a fire alarm
• Maintain elevator functionality during an emergency

By integrating Elevator Smoke Curtains into your building designs, you can give your clients the peace of mind that their occupants will be safe, while preserving the clean, modern look they desire.

Contact us to discuss how Elevator Smoke Curtains can enhance the safety and aesthetics of your next project.

Door Systems staff supporting HomeAid

At Door Systems, we believe in building stronger communities through our products and services and actively supporting initiatives that make a tangible difference. For this past holiday season, we were proud to sponsor HomeAid Orange County’s Stock the Pantry event, a community-driven effort to provide essential food and cleaning supplies to residents moving into the newly built FX Residences.

Audra Garcia, Door Systems volunteer stocking the pantry

Making an Impact

From November 25 to December 13, individuals, teams, and organizations came together to adopt units at FX Residences in Santa Ana, CA, gathering essential items like canned goods, rice, pasta, and cleaning supplies to support those transitioning into stable housing. The initiative provided much-needed resources and strengthened community bonds, ensuring residents had the foundation to begin their next chapter.

1 of 3 Teams from Door Systems

A Personal Connection

For one of our employees at Door Systems, this initiative hit close to home. Having grown up in the FX Residences community in Santa Ana, he shared how meaningful it was to return and see the efforts made to restore and uplift the area.

“It’s incredible to see organizations coming together to make a difference in the community I was raised in. Seeing the dedication to helping families settle into stable housing makes me hopeful for the future of this neighborhood.”

– Salvador Perez, Director of Design & Development @ Door Systems

Salvador Perez Staff at Door Systems

Coming Together for a Cause

On December 13, volunteers delivered the collected items to FX Residences, where they helped stock the pantry for those in need. Through collaboration and generosity, HomeAid Orange County and its partners, including Door Systems, Brookfield Residential, Pacific Life, Shea Homes, and others, impacted families and individuals moving into safe, secure housing.

1 of 3 units being stocked up with groceries and supplies

Why It Matters

At Door Systems, we are committed to more than just business—we are committed to helping our communities thrive. Partnering with HomeAid Orange County allows us to take meaningful action in fighting homelessness and housing insecurity. By supporting programs like Stock the Pantry, we help ensure that newly housed individuals have access to the essentials that make a house feel like home.

Lunch room

Looking Ahead

We are honored to have been part of this initiative and look forward to continuing our partnership with HomeAid Orange County in the years to come. If you’re looking for a way to give back, consider joining HomeAid’s efforts—because together, we can build stronger communities.

HomeAid Orange County

Learn more about HomeAid Orange County and how you can support their mission:

HomeAid Orange County has approached the crisis of homelessness with a unique and collaborative mindset. Their mission is to help people experiencing or at risk of homelessness build new lives through: construction, community engagement, and education.

Elevator smoke curtain at Will Perkins

Elevator smoke curtains are a remarkable feat of engineering that play a critical role in containing smoke and saving lives during a fire. While we rarely think about them, these systems are the result of extensive research, innovative design, and rigorous testing.

Engineers face numerous challenges in developing effective smoke curtains. They must use advanced modeling to predict smoke and heat flow, ensuring the curtains provide a tight seal.

New high-temperature textiles and materials are selected that can withstand extreme conditions without failing. Extensive lab testing simulates real-world fire scenarios to verify the curtains deploy quickly and reliably when needed.

Prototypes go through punishing test protocols, including air pressure and impact tests, to ensure unfailing performance. Sensor and activation systems are also exhaustively tested for perfect function and integration with building fire safety systems.

It’s this behind-the-scenes engineering and attention to every detail that allows elevator smoke curtains to secure elevator shafts and prevent smoke migration, safely buying time for occupants to evacuate when every second counts.

high-rise building

Elevator smoke curtains play a vital role in ensuring the safety of occupants in high-rise buildings during fire emergencies.

These systems are designed to prevent smoke from spreading through elevator shafts, which can act as chimneys that rapidly draw smoke to upper floors.

By creating a barrier to block smoke from entering the elevator shaft, the smoke containment system helps maintain a smoke-free evacuation path for building occupants. This is critical for allowing people to safely exit the building via the stairs without being overcome by smoke inhalation.

The smoke containment system usually consists of a curtain of non-combustible material that deploys from the elevator shaft ceiling to seal off the opening when triggered by a smoke detector.

Some systems also pressurize the elevator shaft with clean air to further prevent smoke infiltration. In addition to enabling safe evacuation, elevator smoke containment helps firefighters utilize the elevators for staging and rescue operations by keeping the shafts clear of smoke.

Properly functioning smoke containment is an essential fire safety feature in tall buildings where many occupants would struggle to evacuate quickly enough by stairs alone. It works in tandem with other fire safety elements like alarms, sprinklers and pressurized stairwells to protect lives in the event of a high-rise fire emergency.

DSI 600 Elevator Smoke Containment System®

Smoke containment curtains are revolutionizing building codes and regulations, particularly when it comes to elevator safety. As codes evolve to prioritize smoke containment in elevator shafts during a fire, manufacturers are racing to develop innovative curtain systems that meet and exceed these stricter requirements.

By creating barriers that block smoke and toxic fumes from spreading floor-to-floor via elevator openings, these curtains provide critical extra minutes for safe evacuation while preventing smoke inhalation injuries.

Consequently, elevator smoke curtains have become a key component of fire and life safety systems in new building designs. As codes continue to advance, a close collaboration between curtain makers, code consultants, and construction firms is allowing them to stay one step ahead – integrating the latest certified curtain systems into buildings from the ground up.

This shift is having a major impact on the construction industry, from design and planning to cost control, as smoke curtains become an essential requirement for code compliance and occupant safety in modern multi-story buildings.

elevator cab allowing passengers to see out

Manufacturers are making significant strides in developing new smoke containment technologies to enhance passenger safety. One promising advancement is the use of transparent elevator smoke curtains that deploy automatically when smoke is detected, creating a barrier to prevent smoke from entering the elevator cab while still allowing passengers to see out.

Another key innovation is the increased use of fire-rated materials in elevator construction, from the paneling and flooring to the wiring and mechanical components.

These specialized materials are designed to withstand intense heat and flames for extended periods, helping to keep smoke and fire from spreading to the elevator shafts and other parts of the building.

With stricter safety regulations and ongoing research, smoke containment is becoming an increasingly critical aspect of modern elevator systems.

Elevator smoke curtains deployed

Elevator smoke curtains are a vitally important safety feature in many buildings, but their critical role in protecting lives is frequently taken for granted. These specially designed curtains, usually made of a fire-resistant fiberglass material, are installed above elevator doors.

In the event of a fire, they automatically deploy downward to cover the elevator opening. By creating a tight seal around the elevator doors, smoke curtains prevent deadly smoke and heat from spreading to other floors via the elevator shaft. This buys precious time for people to evacuate the building safely, while also making it easier for firefighters to locate and extinguish the blaze without dealing with smoke-filled hallways and stairs.

Although they are seldom noticed until an emergency arises, elevator smoke curtains work tirelessly in the background as an essential component of a building’s fire protection system, ready to deploy at a moment’s notice to keep occupants out of harm’s way.

Elevator smoke curtains are a vital safety feature that helps protect people during fire emergencies, but many people don’t even realize they exist. These specially designed curtains are meant to keep smoke and heat from spreading between floors through the elevator shaft during a fire.

Without smoke curtains, a fire on a single floor could allow dangerous smoke to quickly fill the elevator shaft and spread to other levels of the building, putting lives at risk. The curtains deploy automatically when smoke is detected to seal off the elevator entrance and prevent this deadly smoke migration.

While sprinklers and other fire suppression systems tend to get more attention, smoke curtains working behind the scenes play an equally important role in giving people more time to safely evacuate a burning building. So, while they may often go unnoticed, elevator smoke curtains are truly unsung heroes when it comes to safeguarding lives during an emergency.

Louis Vuitton fire curtain

When developing a comprehensive fire safety plan for a building, it’s critical to account for the many complex, interconnected elements that could impact fire and smoke control. From the windows, doors, elevators, and stairwells to the prominent atrium in the front lobby, careful planning is required to effectively mitigate the spread of fire and smoke in the event of an emergency.

Fire and smoke curtains offer a simple, cost-effective way to manage fire and smoke in an emergency. They can be configured to fit and protect any space, making them a more affordable alternative to engineered ventilation systems.

It’s crucial to understand that different types of curtains serve different functions. When selecting the right fire and smoke curtains for your building, it’s important to consider whether your goal is to contain the fire or facilitate evacuation. This understanding will guide you in choosing the appropriate method or combination of methods.

Elevator Smoke Curtains

Elevator Smoke Containment SystemIn a fire emergency, elevator smoke curtains play a crucial role. They work in tandem with fire-rated elevator doors to prevent smoke from entering the elevator and migrating to other floors through the elevator shafts. These curtains are designed to deploy automatically when activated by the nearest smoke detector or fire alarm, rolling down over the elevator doors to create a tight seal.

When selecting a smoke curtain for your elevator system, there are several important factors to consider:

  1. When selecting an elevator smoke curtain, ensure the dimensions – both width and height – are appropriate to fully cover the entire elevator opening for proper functionality.
  2. The depth or distance between the wall and the face of the elevator door frame is commonly referred to as the “return.” Certain elevator smoke curtain models have specific return requirements, so you may need to choose a customizable model to meet your needs.
  3. Elevator smoke curtain housings can be mounted to the door frame, ceiling, or valence. It is important to determine which mounting option is compatible with your elevators.
  4. Elevator smoke curtains are designed with power-failure contingencies in mind and do not require power to deploy. Most systems incorporate a battery backup to ease egress during a power outage; this can also help prevent unnecessary and disruptive deployments during minor power failures.

Fire Curtains

Lido House Horizontal Fire CurtainFire curtains, constructed from fire-resistant materials, are engineered to contain or impede the spread of flames throughout a building.

If you’re planning to install fire curtains, keep the following in mind:

  1. Fire curtains come in vertical and horizontal configurations to address different fire safety needs. Vertical curtains are installed around stairwells and escalators to facilitate occupant evacuation during a fire. Horizontal curtains are used to divide an atrium into smaller areas, which helps limit the spread of fire. Window curtains contain fires at exterior windows. In large, multi-story buildings, a combination of these various fire curtain types is often required to provide comprehensive fire safety.
  2. When selecting fire curtains, it’s important to consider their fire protection and endurance ratings. While we hope emergency responders can arrive quickly, the time it takes for them to control a fire may vary depending on your location and building size. To ensure adequate safety, choose fire curtains rated to withstand flames long enough for the fire department to contain the spread.
  3. When selecting a fire curtain system, it’s crucial to consider the space requirements for housing the curtain when not in use. Fire curtains can cover expansive areas, with Door System’s model capable of spanning spaces hundreds of feet wide.
  4. To ensure fire curtains can be deployed even during a building-wide power outage, they should be installed with a backup battery system. Additionally, some fire curtain systems can be connected to the building’s standby power supply. It’s crucial to properly install and power the fire curtains to guarantee they function correctly in an emergency.
  5. When selecting a fire curtain system, prioritize ease of operation. Fire curtains are effective at protecting evacuating building occupants, but there may be situations where a curtain needs to be opened – either to facilitate exit flow or allow more people into the stairwell. It’s important to choose a model that is simple to operate and can be quickly used by occupants during an emergency.

When selecting smoke and fire curtains for your building, be sure to understand the maintenance and testing requirements for this critical fire safety equipment. Proper care and regular checks are essential, as smoke and fire curtains play a vital role in any comprehensive fire safety plan.