How Advanced Intumescents Work Together to Protect Communities

Modern building with a bold red sign: Passive Fire Protection Systems.

Discover how Tenmat Advanced Intumescent Materials work cohesively together to protect the lives and properties in their specified applications

Introduction to the Demand for Passive Fire Protection

Whether you are specifying the details or installing the technology, passive fire protection is not an uncommon construction practice. Required by the International Building Code (IBC), passive fire protection has become a widely adopted practice. Regardless of the project’s location or application type. With its main functionality of resolving unprotected openings, the use of passive fire protection is located throughout an entire project. These locations include ceiling/floor assemblies, walls, and ventilated air cavities. All the prior assemblies contain unprotected openings, due to penetrations created to install various fixtures or even maintain a design’s performance.

Therefore, it is safe to assume the unprotected openings within these applications have different demands in passive fire protection. For example, an unprotected opening in a ventilated rainscreen assembly may have differing dimensions and code requirements – compared to an opening in a fire-resistance rated ceiling/floor assembly. In response, each unprotected opening requires a new passive fire protection solution to meet its application type.

Passive Fire Protection Solutions vs. Passive Fire Protection Systems

In the effort to accommodate unprotected openings in different applications, numerous passive fire protection solutions and materials have been introduced to the construction industry. Fire protection sealants, caulks, and foam for openings caused by through-penetration openings. Placing fire-rated covers over recessed light fixtures and in-ceiling speakers. Intumescent fire blocks for ventilated rainscreen assemblies – and the list goes on.

Independently, passive fire protection solutions work to protect lives and properties – however, can these solutions work together?

Working Together at Tenmat

Developed to meet the code and design requirements for differing unprotected openings, Tenmat’s Advanced Intumescent Solutions and Materials are easily integrated into their specified assemblies. Whether it is a singular opening or the entire assembly, our Advanced Intumescent Materials have been designed to independently secure its part in fighting against flames, high temperatures, or smoke. Unlike other fire protection solutions and materials, our Advanced Intumescent Materials work not only independently – but also as a cohesive system.

3D model with four open stalls, interior equipment, and a grid to the right.

Where do education projects specify Tenmat’s Advanced Intumescent Solutions?

When working in a new construction K12 building, several of Tenmat’s Advanced Intumescent Materials can easily be fitted into its details. From our fire-rated light covers to our through-penetration fire-stopping technology, all the solutions work collectively to protect the building and its occupants. But, what makes Tenmat’s Advanced Intumescent Materials different from other passive fire protection solutions?

Tenmat Advanced Fire Protection Solutions in School Relighting Renovations

Composed of a lightweight, highly flexible intumescent technology, Tenmat’s Advanced Fire-Rated Solutions can easily be placed into pre-existing ceilings. With K12 buildings and higher education institutions opting for LED fixtures, Tenmat’s Solutions are an easy solution for properly fire-rating a fire-resistance ceiling.

At Tenmat, we offer several fire-rated solutions designed to be retrofitted into fire-resistance rated ceiling assemblies. For LED lighting upgrades, we offer two retrofitting options, one for LED wafer-styled downlights or troffer luminaires.  Each fire-rated light series has met the latest testing standards for fire-rated assemblies.

Therefore, all contractors have to do is simply fold and open these fire-rated light covers over the unprotected openings. Oftentimes, our Tenmat Fire-Rated Light Covers are paired with another one of our advanced solutions, the FF109-FRSC.

In educational settings, we often see in-ceiling loudspeakers integrated into the ceiling’s design. Used to improve classroom experience, in-ceiling loudspeakers are a must for our current and future educational institutions. Therefore, architects and contractors have been tasked with reinstating the openings these fixtures cause.

Tenmat Audio Applications in School Reconstruction Jobs

Designed for retrofit applications, Tenmat’s FF109 Fire-Rated Speaker Cover is an ideal option for a wide range of speakers. Regardless of manufacturer or brand. Independently, this solution creates a strong barrier between the fire and the rest of the building for up to 60 minutes. In normal circumstances, the sound absorbing properties of the proprietary intumescent material allows for an enhancement in acoustical performance.

With this combination, the FF109-FRSC complies with stringent code requirements without compromising the acoustical performance of the speaker.

How Do Our Fire-Rated Covers Work Together

If your project team is looking to specify fire protection for LED wafers, troffer luminaires, or/and in-ceiling loudspeakers, our Intumescent Fire-Rated Covers are tested and tried system. Built with the same advanced intumescent technology, all our Fire-Rated Covers can easily be integrated into both the details and the job site. In the conditions where a fire is present, these fire-rated solutions work together to keep the fire contained in its original location.

Unlike custom built solutions, our Fire-Rated Light and Speaker Covers have been tested and approved to meet the IBC’s stringent requirements. To further explore how our Fire-Rated Light Covers in Education applications.

How are Tenmat’s Firestopping Solutions Working Together in Data Centers?

This year, data centers are the number one project type in the construction landscape. With the rise in the usage of AI, the demand for additional data centers has accelerated. Therefore, the construction industry responded. With the rapid growth of data centers, it is critical to ensure that these centers are fitted with proper passive fire protection.

Using Tenmat Through-Penetration Blocks and Caulks in AI Centers

Teeming with large lithium-ion towers, countless wires and cables run throughout the data centers. Through the floors, ceilings, and walls, wires and other penetration openings are expected to be fitted with proper fire protection.

When it comes to properly fire rating through penetration openings, specified firestopping solutions need to be flexible in applications. With these openings coming in varying sizes, shapes, and dimensions, contractors need a firestopping solution(s) that can accommodate these variances.

At Tenmat, we offer several firestopping solutions. These solutions are easily be integrated into the details of a new construction data center. From firestopping foam to fire protection fire blocks, we are able to protect most openings. With its high expansion and insulating properties, the FF260 Fire Protection is ideal for cable trays, cable bundles, and mixed penetrations.

For the smaller, singular openings, we offer the FF360 Intumescent Foam and the FF365 Intumescent Sealant. Both solutions can seal off small, irregular penetration openings, creating a safe fire and flame barrier.

Advanced Intumescent Materials and How They Work with Lithium-Ion Batteries

Known for its role in keeping data centers functioning, lithium-ion batteries are a key component in a data center facility. However, one of the challenges of this technology is the threat of thermal runaway.

Thermal runaway, a phenomenon that occurs when a battery or component experiences an uncontrollable increase in temperature. This reaction has become the main reason why the use of lithium-ion batteries has been questioned.

When a battery’s cell overheats, it is not only contained to one cell – it spreads rapidly throughout the adjacent cells. This rapid acceleration produces temperatures three times hotter than conventional gasoline fires, a release of toxic gases, and an ability to reignite after being initially extinguished. This combination creates challenges for both prevention strategies and emergency response protocols.

To prevent this scenario from arising, architects and contractors have begun to implement passive fire protection measures into these applications. Here at Tenmat, we offer several advanced intumescent materials that will protect the remaining batteries if thermal runaway arises. To view our range of advanced intumescent materials here or speak to an expert here.

Through-Penetration and Advanced Intumescent Materials for Data Centers

When it comes to thermal runaway, it is critical this phenomenon is contained. Whether containing a fire within a room or protecting against battery-related fire hazards, Tenmat USA provides advanced intumescent solutions engineered to deliver reliable fire protection. With our advanced intumescent materials, architects can easily specify passive fire protection that works collectively to address life safety concerns. Using a fire protection block, fire protection foam, or our FF107 material, or a combination of both, Tenmat’s Advanced Intumescent Materials prevents the acceleration of flames and smoke.

To learn more about Advanced Intumescent Materials used in Data Centers, please visit our Data Center page.

Why do healthcare projects specify Tenmat’s Intumescent Solutions?

By frequently specifying fire-resistance rated assemblies, architects have already taken the initial step in protecting healthcare facilities and their occupants. Unfortunately, these assemblies are often compromised by various penetrations. Therefore, these applications require passive fire protection solutions and materials to be integrated into their architectural designs.

Protecting Light Fixtures in Healthcare Facilities

In healthcare facilities, the lighting design is key. Without proper lighting, healthcare professionals will be unable to execute proper medical procedures. Therefore, the architects who are designing these facilities opt for higher end recessed can lights. As previously stated, these fixtures penetrate a fire-resistance rated ceiling. By penetrating a fire-rated ceiling, the assembly is now compromised and no longer holds a fire rating. To resolve this, architects are required to fit these unprotected openings with a fire-rated solution.

By fitting these unprotected openings with either Tenmat’s FF109-300 or FF109-350 Fire Rated Light Covers, architects can gain peace of mind when specifying these fire-rated solutions. Forged from the same intumescent material, the FF109-300 series can protect openings for 60 minutes. Within these 60 minutes, patients and hospital staff will have additional time to evacuate before the fire begins to spread throughout the building.

In the case where the fire-rated ceiling requires a two-hour fire rating, Tenmat offers a two-hour, fire-rated light cover, the FF109X. Learn more about our range of Fire-Rated Light Covers here.

Through Penetration Solutions in Healthcare

Supporting large-scale drainage and electrical wiring systems, through-penetration openings are another life safety threat. To ensure these openings don’t act as a catalyst for smoke and flame spread, passive fire protection solutions are required to be installed.

Tenmat’s UL-Listed FF160 Fire Protection Plug is an ideal solution for large volumes of electrical cables and wiring. Designed for both retrofit installations and new construction, this advanced intumescent supports power and control cables, telecommunication cables, and optical fiber cables passing through solid floors or ceiling systems. By incorporating this firestopping solution, architects can address these types of openings throughout the entire design.

Using Fire-Rated Light Covers and Firestopping Solutions in Healthcare

Regardless of if you are trying to fire rate or firestop an unprotected opening, Tenmat offers a tested and approved solution. By detailing our FF109-300 series and FF160 Fire Plug into the design of a new healthcare facility, architects will have peace of mind when it comes to life safety. Why? Tenmat’s Advanced Intumescent Materials are tested and approved to meet even the most complex application. Explore the full story on how Tenmat’s Intumescent Materials work collectively together in healthcare facilities.

Incorporating Tenmat Advanced Intumescent Solutions and Materials into Your Next Project

When it comes to selecting your passive fire protection system, it is important to have solutions that are tested, approved, and designed to work together. From fire-rated light covers to through-penetration firestopping and advanced intumescent materials, Tenmat provides a comprehensive range of solutions. Our fire-rated and firestopping solutions help architects, contractors, and project teams address unprotected openings with confidence. By specifying products that perform independently and cohesively, project teams can better support code compliance, protect critical building components, and strengthen overall life safety.

Passive Fire Protection in Relighting Projects

Hallway with text: PFP in Relighting Renovations. Overlooked Life Safety Hazards.

Discover how architects and contractors are addressing passive fire protection requirements and standards in summer relighting projects

 

New Lighting Designs and Upgrades for Existing Infrastructures

In the beginning of every construction season, the focus begins with new construction. However, when we reach the halfway mark of the season, the focus shifts towards a second wave of projects – reconstruction projects.

As schools start to close for summer and healthcare facilities prepare for their summer relighting renovations, contractors are faced with the start of the reconstruction phase. During this phase, contractors are tasked with short-term construction projects, such as relighting renovations, minor cosmetic modifications, and more. But the real challenge is the project team meeting the desired completion date. Often, these teams can easily accomplish this demand. But there are some instances in where this goal is unachievable.

When dealing with a relighting renovation, project teams are simply removing and upgrading the current recessed fixtures to more energy efficient fixtures– an easy task compared to others.

But this simple, short-term project can easily turn into a complicated, long-term one. Let’s explore how.

Meeting Building Codes in Pre-Existing Buildings

Many buildings, who undergo relighting renovations were originally constructed between the early 1970s and late 1990s.  As a result, it is safe to claim that the building’s lighting fixtures aren’t the only outdated elements in these structures.

When installing a LED lighting fixtures into a pre-existing ceiling, contractors can easily update the light fixtures to the latest models and brands. But the challenges don’t lie in the selection of the lighting fixtures. The challenge is what’s behind them.

Like any construction project, the project’s specifications are up to the latest code adoption in its local jurisdiction – holding true to buildings constructed several decades ago. When a contractor removes a lighting fixture in a school or hospital built in the 70s, they uncover a fire-rated ceiling from the 70s as well.

Unprotected Ceiling Openings in School Buildings

Unlike in modern construction, building code officials didn’t recognize the life safety hazards of unprotected ceiling openings in the 70s and 80s. Therefore, when contractors begin to remove these lighting fixtures – they have now uncovered a compromised fire-resistance rated ceiling.

By uncovering these life safety hazards, the project team is now liable to reinstating the integrity of the fire-resistance rated ceiling/floor assembly. This is where our challenges truly unfold.

Refer to section 714.5.2 of the 2021 IBC for the full code requirements.

Addressing Common Challenges in Relighting Renovations

After revealing a compromised fire-rated ceiling, the project team is now faced with several challenges. However, these challenges are dependent on the type of environment the project team is working in.

Summer Relighting Renovations in K12 Buildings

In the cases where contractors are reinstating a fire-rated ceiling, one of the biggest obstacles is time. To ensure there are no distractions during school hours, these types of renovations are pushed towards the time when students aren’t in attendance – summer break. The problem? When the two-week relighting project turns into an eight-week project.

By unveiling the need to fire-rate a ceiling’s opening, the team is tasked with finding a solution that can provide a speedy result. Unfortunately, many traditional fire-rated solutions are far from being a quick fix. Fire-rated drywall boxes? Contractors would have to remove the entirety of the pre-existing ceiling – resulting in a high expense bill in both materials and labor. On top of the hefty expense bill, these additional steps may cause a delay in the completion of the relighting renovation – interfering with the school’s schedule.

Lighting Upgrades in Healthcare Facilities

Hospitals are open year-around, 24/7 – therefore, any form of renovation is expected to be done in a quick and effortless manner. As contractors start to configure a game plan on how they will be addressing the compromised ceiling assembly – the resolution will need to be quick and efficient. However, traditional fire-rated solutions cause several issues when working in a healthcare setting.

Fire Rated Drywall Boxes in Relighting Projects

One of the first challenges is the environment itself. As we mentioned, hospitals are always bustling and filled with patients in need of assistance. Unfortunately, as I previously stated, traditional fire-rated drywall boxes cause additional steps – meaning longer project timelines. But one of the main concerns of fire-rated drywall boxes is the mess it produces. While installing traditional dry-wall boxes, contractors are exposed to dust and other unhealthy particle matter – normally not an issue with the proper equipment. In contrast, the potential of exposing these particles to the hospital’s current patients poses a big health concern to the patients. In addition to the potential exposure of the boxes’ matter, the team will also need to take down the pre-existing ceiling. This action will result in a lengthier completion date and even bigger mess. Furthermore, jeopardizing the health of the hospitals’ patients for a prolonged period.

Yet, fire-rated drywall boxes aren’t the only solution. Fire-rated lights are another solution that can potentially fire rate unprotected ceiling openings. Fire-rated lights can easily be fitted into existing ceiling openings – meeting time and health safety demands. However, using these fire-rated lights can pose several challenges.

Fire Rated Lights for Relighting Renovations

One of the first challenges fire-rated lights tend to bring forth is the lack of flexibility in selecting your light fixture of choice. Normally, this challenge is viewed as a minor one. However, in the case where professionals are performing treatment and healthcare – lighting is very key. Therefore, the restricted selection in lighting choices can pose a problem for healthcare professionals.

Now let’s say you were able to find a fire-rated light that 1) fits the current ceiling’s unprotected openings, and 2) meets the lighting standards of healthcare professionals. The question you need to answer is “Has this fire-rated light have been properly tested and approved by a third-party testing laboratory?”

One of the biggest challenges in passive fire protection is the lack of proper fire testing and certification. To comply with code requirements for restoring a fire-rated ceiling, a fire-rated solution must be properly tested as a complete system. Just because one component of a solution is fire-rated, it does not make the entire solution fire-rated. Unfortunately, some fire-rated lights on the market claim they are “fire-rated” – when they are not.  Therefore, it is always important to check with the manufacturer to ensure proper testing was conducted.

Using Retrofit, Fire-Rated Solutions in Reconstruction Projects

At this point, contractors are weighing on what disadvantages are less impactful – but at the end of the day, all these constraints have their impact. Therefore, contractors need a fire-rated solution that can be 1) retrofitted into a pre-existing ceiling, 2) easily installed, and 3) provides a proper fire rating.

At Tenmat, we offer a range of advanced fire-rated solutions, designed to fulfill all the previously mentioned requirements. From troffer luminaires to LED pancake downlights, we offer a flexible, lightweight fire-rated solution to fulfill code requirements.

For LED Wafer-Styled DownlightsBlack cone-shaped ceiling light with metal supports on a white ceiling.

The FF109-200 and FF109-250 1 Hour Fire Rated LED Downlight Covers are cone-shaped intumescent enclosures which has been specifically designed to help maintain the integrity of openings of up to 6” diameter in fire rated ceilings when penetrated by modern low profile LED downlight fixtures.

The unique design gives the installer more freedom in fixture selection as the covers are suited to a wide range of LED downlights.

The flexible and lightweight nature of the fire rated light cover makes installation quick and easy, reducing the stress load on the ceiling. Manufactured with highly expansive and insulating properties, these covers ensure that both flame spread and heat transmission are stopped for 60 minutes.

Learn More about the FF109-200 1 Hour Fire-Rated Downlight Cover and FF109-250 1 Hour Fire-Rated Downlight Cover

 

Tiled floor cross-section showing an expansion joint topped with a beige cap.For Troffer Luminaires

Tenmat’s Fire-Rated Troffer Covers are the ONLY fully fire tested solutions for 2′ by 2′ and 2’ by 4’ fluorescent fixtures on the market. With its pre-formed flexible enclosure, Tenmat’s Troffer Covers are designed to help maintain the integrity of fire rated ceilings when penetrated by troffer luminaires.

With its flexible and lightweight nature, our troffer covers makes installations quick and easy – a plus when you are working against the clock.

Discover how the FF130-2’x2’ and FF130-2’x4’ make an impact on K12 schools and healthcare facilities.

Partially covered fireproof container with flames below, set against a white background.

For In-Ceiling Loudspeakers

Our FF109-FRSC, a 1 Hour Fire Rated Speaker Cover, has been developed to meet the highest fire protection standards and expectations for audio and building professionals, fitting in-ceiling loudspeakers up to 10”. With the composition of the propitiatory intumescent material, it allows for an enhancement of the acoustic performance of the structure for crisper and clearer sound.

With the product’s easy installation and its resulting labor-savings, the FF109-FRSC can be installed with ease – meeting your project’s intended completion date.

View how the FF109-FRSC performs in Audio Applications.

Applying Passive Fire Protection in Your Next Relighting Project

Unlike new construction projects, relighting renovations must be cautious about external factors. Those factors may include the impeding date of the upcoming school year or the health and safety of sick patients. Therefore, the priorities of new construction and reconstruction projects vary.  However, the demand to properly reinstate a fire-rated ceiling is very much the same across the board.

By specifying a retrofittable and fire-rated solution, such as Tenmat’s Fire-Rated Covers, contractors can eliminate some of biggest constraints often found in relighting renovations. From providing a shorten lead time and minimal mess, Tenmat Fire-Rated Covers aren’t just meeting the standards of the project team – but the building’s current and future occupants.

If you have additional questions regarding Tenmat’s Fire-Rated Covers, contact our team here.

Meeting Diverse Fire Protection Applications with Advanced Fire-Rated Solutions

3D building model on blueprints with "Advanced Intumescent Solutions" in a red banner.

Explore how Tenmat’s Advanced Intumescent Solutions exceed the standards for passive fire protection in a wide range of construction applications

Adding Advanced Intumescents into Modern-Day Construction

Over the past several decades, the adoption of passive fire protection requirements has spread like wildfire throughout the United States. From reinforcing unprotected openings in ceilings, floors, walls – and even in exterior air cavities, building code officials have pushed towards addressing these life safety hazards.

By now requiring passive fire protection in a diverse range of construction applications, construction professionals are now seeking passive fire protection solutions and materials to fulfill these standards. To meet these demands, an explosion of passive fire protection solutions and materials occurred.

Introduction to Intumescents

Introducing various passive fire protection materials and solutions, varying in material composition and dimensions, construction professionals now face the challenge of finding a properly tested fire-rated solution to fit into their project specifications.

By understanding the importance of these standards, you and your project team will be able to navigate through the decision-making process of selecting the proper passive fire protection in your construction application. Let’s begin.

How has intumescent fireblocking changed the NYC landscape?

In 2022, the NYC Building Code adopted several building code requirements – more specifically around fireblocking in exterior wall coverings. These adoptions caused quite a commotion – due to its very strict parameters on combustible cladding. Many architects and builders deemed using certain cladding and other building materials “illegal” in New York City. However, this assumption is false. Architects and contractors are very much able to install combustible systems into New York City – however, there are just a few extra steps.

Any cladding system which houses a combustible component (no matter how small) requires an approved fireblocking solution. Please note there are additional requirements for fireblocking in exterior wall cavities. Refer to the 2022 NYC Building Code Here.

But one thing is clear – fireblocking is required in exterior wall assemblies in New York City. To meet these requirements, architects started specifying mineral wool and other traditional fireblocking materials into the exterior air cavity. Unfortunately, the installation of these types of solutions limited the performance of the air cavity. Why?

Fireblocking is required to extend across the entirety of the cavity – which traditional fireblocking fulfills. With this blockage occurring during normal conditions, the air cavity will be unable to properly circulate air and drain water. These implications defeat the purpose of integrating a ventilated rainscreen assembly.

In response to this challenge, Tenmat introduce a fireblocking technology that can allow for an open-state air cavity in normal conditions– intumescent fireblocking. In normal conditions, Tenmat’s Intumescent Fireblocking permits an air gap – allowing for proper ventilation and moisture control. However, in the event of a fire, the intumescing material rapidly expands – sealing off the rest of the cavity from flames, smoke, and heat.

To learn more about intumescent fireblocking, check out our information page here.

Why are intumescents ideal for through-penetration applications in data centers?

By installing an intumescent firestopping solution, architects and contractors can easily meet firestopping requirements while not compromising the structure of the data center.

Rapidly becoming one of the most popular project types in the United States, data centers are on every professional’s radar. With that being said, data centers house thousands of wires and cables in their walls, ceilings, and walls.

Like any other construction applications, any time an opening is created through a fire-rated assembly – the application needs to be reinforced with a proper firestopping solution.

In the case of a fire outbreak, it is important that the fire is compartmentalized and not spreading rapidly throughout the building. However, when an opening is left unprotected – property and lives are jeopardized. But a small wire hole cannot be the main access point for a fire – right? Wrong.

If these holes aren’t properly firestop, flames, heat, and smoke can easily gain access to the remainder of the building. In just several moments, the high temperatures and flames easily melt the wires and cables in your walls, ceilings, and floors. Once melted, these openings have no barrier between the fire and the rest of the building. To interrupt this interaction, building code officials issued a requirement for a fire-rated solution for these through-penetration applications.

Tenmat and Through-Penetrations

Tenmat has formulated several UL Classified firestopping solutions to accommodate these demands. The FF160 Fire Protection Plug is a two-hour through-penetration firestop system with the ability to be retrofitted within power and control cables, telecommunications cables, and optical fiber cables through solid floors or systems. This solution is UL Classified for a maximum of 60% cable fills in openings of max. 5” diameter in concrete and can be easily cut to pass wires or cables through them – ideal for power-generating energy stations.

At Tenmat, we also offer the FF260 Fire Protection Block, a preformed, intumescent firestop block – formulated to assist in sealing penetrations with cables, cable trays, cable bundles, metal pipes, and mixed penetrations. With its high expansion and insulating properties, the FF260 Fire Protection Block ensures that both flame spread and smoke are stopped for 120 minutes.

If you are interested in viewing the full product range for data center applications, click here.

What technologies are used to properly fire rate in-ceiling loudspeakers in higher education facilities?

Just like any recessed fixture installed into a fire-resistance rated assembly, the opening needs to incorporate an approved fire-rated solution. Commonly, higher education lecture halls are fitted with audio systems, which include in-ceiling loudspeakers. By installing in-ceiling loudspeakers, your hired contractor is highly likely penetrating a fire-resistance rated assembly.

With this penetration, the ceiling assembly is now compromised. Therefore, a fire-rated solution is required.

To permit the usage of any preferred speaker manufacturer and/or brand, Tenmat offers the FF109-FRSC – a fire-rated speaker enclosure. By simply placing this cover over an in-ceiling loudspeaker, you will no longer be compromising design nor compliance. Formulated to meet a wide range of in-ceiling loudspeaker designs, Tenmat’s FF109-FRSC is a great solution for both design and compliance purposes.

Explore more about the FF109-FRSC Fire-Rated Speaker Cover.

Which fire-rated solutions are used to protect ceiling openings in new construction multi-family?

Tenmat’s FF109 LED Downlight Fire-Rated Covers is one of the few tested and approved fire-rated solutions on the market for multi-family applications. Undergoing proper testing and approvals by third-party laboratories, such as UL and Intertek, Tenmat LED Downlight Fire-Rated Covers are compliant with multi-family applications.

One of the recent challenges of passive fire protection and multi-family applications is that many fire-rated solutions claim to have undergone proper tests; however, this is not the case. These “testing claims” are not back by any testing data. In fact, these claims are only backed by the individual components deemed fire-resistant by their own individual testing. But, for a solution to be complaint – it needs to go under proper testing and certifications.

To view our testing and certifications, please visit here.

How do I reinstate two-hour fire-rated ceilings with unprotected openings?

By incorporating a two-hour fire-rated solution, such as Tenmat’s FF109X, contractors can easily reinstate the integrity of two-hour fire-resistance rated ceiling assemblies. Often in healthcare facilities, such as assisted living and rehabilitation centers, these infrastructures require a higher fire rating for ceiling/floor assemblies. Therefore, you’ll need to integrate a fire-rated solution that provides the same rating.

One of the main challenges that come with this scenario is lighting. In healthcare facilities, the building’s operations require a higher lumen output to ensure proper treatment and care is provided to its patients. Other solutions, such as fire-rated lights, often cannot fulfill this requirement. Designed to accommodate a wide range of applications and lighting fixtures, Tenmat’s FF109X permits architects to specify lighting with the proper lumen output while meeting fire protection standards.

Discover how the FF109-X Fire Rated Light Cover will fit into your details

Final Thoughts

At Tenmat USA, we provide a broad range of advanced intumescent solutions and materials for many construction applications. Whether you need to firestop through-penetrations in data centers or protect downlights in multifamily projects, we offer tested, approved solutions.

We also recognize that some applications require a solution beyond our standard product range. With our onsite R&D team and manufacturing capabilities, we are open to creating a fire-rated solution customized to your application.  Interested? Please contact our team for assistance.

 

Installing a fire-resistance rated ceiling/floor assembly? This Guide is for You

Hands by a ceiling opening with the words "Unprotected Ceiling Openings" visible.

Understand the steps on how to resolve one of the most overlooked safety hazards in fire-resistance rated ceiling/floor assemblies.

Applying Building Codes into Modern Construction

Imagine your next project, redevelopment, or new construction – it’s your choice. You are already envisioning the building’s finish, integrating your signature design – but then you get smacked with your local jurisdiction’s code requirements. Unfortunately, this is a common situation for most architects and developers.

When dealing with compliance, architects are often faced with compromising their original design to meet certain building code conditions. But with these building code requirements, it allows our communities to have peace of mind when residing and working within its structures. Without these standards, there would be a continuous fear of a building’s structure being compromised.

As construction technology and practices have advanced over the years, architects have been able to easily find a compromise between compliance and design. However, there are still certain scenarios in modern construction where this doesn’t apply – or so they think.

The Importance of Fire-Resistance Rated Ceilings

Introduced over several decades ago, fire-resistance rated ceiling assemblies aren’t a new concept to the construction industry. But let’s take a moment to refresh our knowledge.

A fire-resistance rated ceiling assembly is a complete, coordinated system of ceiling components. This system consists of the ceiling system, lighting, audio fixtures, HVAC penetrants through the ceiling, the plenum, structural system, subfloor, and finish floor.  Essentially, a fire-resistance rated ceiling is treated as one whole entity. Therefore, for the ceiling to offer a proper fire rating, it needs to be tested and certified as a whole when meeting specific fire-resistance standards.

What are the testing standards of a fire-rated ceiling assembly?

Local building codes, which require life safety hazards to be addressed, rely on two ratings to evaluate the compliance of the fire-rated ceiling assembly.

Flame Spread Rating

This test measures the propagation of a flame away from the source of ignition across the surface of a material or assembly. Additionally, there will be an evaluation of the potential for spreading flames in the event of a fire.

Fire Resistance Rating

This test determines the ability of a material, product, or assembly to withstand a fire and provide protection on the non-fire side for a period of time. (This is where the one- or two-hour fire rating comes into play).

To learn more information about proper testing and approvals for fire-resistance rated ceiling/floors, please connect with Underwriter Laboratories (UL) or Intertek (ETL).

The Purpose of Fire-Resistance Rated Ceilings

Once a fire-rated ceiling assembly has received its proper tests and approvals, it can now seamlessly be integrated into its specified application(s). But what is the purpose of these assemblies?

Prior to the integration of fire-rated ceilings, the structural integrity of a building is vulnerable to the effects of a fire outbreak. Why? With the exposure of flames, high temperatures, and smoke, certain building materials could not withstand these elements. Because of this, the building itself and its occupants are in danger of rapid fire spread, premature structural failure, and limited time to evacuate safely.

Because it can resist fire exposure for one to two hours (depending on the assembly’s rating), a fire-rated ceiling helps compartmentalize a building and slow fire spread both vertically and horizontally. This performance can buy critical time for occupants to evacuate and for first responders to arrive and suppress the fire.

Where are fire-resistance rated ceiling assemblies required?

Now that we’ve covered the purpose of fire-resistance rated ceilings, it’s easier to understand where these assemblies are required. Because they’re designed to extend evacuation and response time, fire-rated ceilings are most often specified in buildings where occupants may need additional time to exit safely. Common applications include but aren’t limited to:

  • Multi-Family
  • Healthcare Facilities and Hospitals
  • Assisted Living Facilities
  • Data Centers
  • Educational Building, K12 and Higher Education
  • Mixed-Use Spaces

Please check with your local jurisdiction to see what construction applications and building types require fire-resistance rated ceiling/floor assemblies.  

Addressing the Challenges in Fire-Rated Ceilings

Earlier we addressed that for a ceiling to have a fire rating, the whole assembly needed to undergo proper testing procedures. Therefore, when architects specify properly tested and approved fire-rated ceiling assemblies – the rating will be intact. And yes, this is true – until contractors start cutting out openings for the ceiling’s recessed fixtures.

Once penetrated, the ceiling is deemed as compromised and the fire rating is no longer valid. Why?  As we previously addressed, the assembly gains its fire rating as a whole – but what happens when you take out parts of that whole? Well, it means there are holes (quite literally) in the ceiling’s ability to perform in a fire.

Unfortunately, this hazard is commonly overlooked. When penetrating a fire-resistance rated ceiling, contractors aren’t leaving a noticeable opening. Often, they fill the opening with a recessed light fixture or loudspeaker – making the opening hidden from a visual view in plain sight.

But in the scenario of a fire outbreak, the recessed light fixture or loudspeaker can melt in a matter of minutes – leaving the opening wide open. Once fully melted, flames, heat, and smoke can accelerate throughout the building – defeating the purpose of a fire-rated ceiling.

Meeting Local Building Code Adoptions

By recognizing this often-overlooked hazard, building code professionals have collectively decided to adopt several requirements to address this issue.

To protect the lives and properties within our communities, the International Building Code addressed in section 714.5.2 of the 2018 IBC:

“Where floor/ceiling assemblies are required to have a fire-resistance rating, recessed fixtures shall be installed such that the required fire resistance will not be reduced.”

With the establishment of this code adoption, construction professionals are now required to address this situation in their fire-rated ceiling assemblies. But the next question is – how?

How Are Architects Resolving Unprotected Openings?

As the IBC states, construction professionals are required to install a fire-rated solution within each opening to reinstate the fire rating of the ceiling assembly. Over the past several years, various forms of “fire-rated” solutions have entered the landscape. Unfortunately, some of these solutions brought along some challenges.

One of the biggest challenges architects faced when installing these solutions, such as fire-rated recessed lights, is compromising their lighting design. By having to use fire-rated lights, architects are limited in their control on the light’s lumen output, its design, and its overall aesthetic. In addition, another challenge architects faced were a majority of these “fire-rated” solutions are not actually properly fire-tested; defeating the purpose of installing these installations. Ultimately, leaving the architects with a power struggle between compliance and aesthetic.

Tenmat’s Fire Rated Covers for Unprotected Openings

3D model showing four stalls with objects, beside a blue tank and a gray unit.

Formulated to accommodate a wide range of recessed fixtures, regardless of model or manufacturer, Tenmat’s Fire-Rated Covers offer a solution to the challenges of other fire-rated solutions. With its ability to be highly compatible, architects will no longer have to sacrifice their design details for compliance.

In addition, Tenmat’s Fire Rated Covers have all undergone proper testing and approvals by third-party testing laboratories. With these approvals, Tenmat Fire-Rated Covers can seamlessly be integrated into a wide range of applications and meet even the most stringent building code requirements.

Explore Tenmat’s Full Range of Tested and Approved Solutions for Unprotected Openings.

Key Takeaways

When it comes to compliance and design, there should only be a balance – not a sacrifice.  By using a fire-rated solution, such as a Tenmat Fire-Rated Cover, architects and contractors can easily reinstate their compromised fire-resistance rated ceiling without compromising the light design they envisioned. If you are interested in learning more about unprotected openings in fire-resistance rated ceiling assemblies, Tenmat USA does offer a free ICC-accredited course, which gives a brief overview of this life safety hazard. If you are interested, you can sign up here.

Case Study: Storm King Art Center Expansion

Grassy field and trees with "Storm King Art Center Expansion Case Study" text.

NYC OTCR/DOB Approved Intumescent Fireblocking integrated into exterior timber cladding in New York Art Center expansion.

 

Envisioning Aesthetics and Architecture in Art Center Expansion

Creativity is not the only thing growing in New Windsor, New York. Home to large-scale sculptures, Storm King Art Center were gifted their first capital project to meet the flourishing community and its demands for artwork.

In this site expansion, the community will experience new visitor welcome pavilions with consolidated parking and accessible amenities, and the construction of the Art Center’s first dedicated conversation, fabrication, and maintenance building.

Exterior Timber Cladding Assembly Triggers New NYC Code Adoption

The David R. Collens Building for Conservation, Fabrication, and Maintenance permits artists to convey their artistic visions on a larger scale. This space will serve as a workshop, studio, mechanical shop, storage space, and office for fellow artists.

To embody its purpose for conversation, the project development team decided to integrate a system that caters to energy conservation specifically – an ‘open-state cavity’ fixed within an exterior wood cladding.

With the installation of this type of application, the project now triggered important fireblocking requirements under IBC Section 718.2.6 – Exterior Wall Coverings. This code section mandates proper fireblocking within exterior wall cavities when certain cladding materials, such as wood, are used. View the full IBC Section 718.2.6 Exterior Wall Coverings. By triggering this code section, the project is required to implement proper fireblocking standards in the cladding assembly.

Balancing Compliance and Conservation in Cladding

By triggering this requirement, the project team now faced a new challenge – a blockage in the cavity. Fireblocking is required to fully compartmentalize the exterior cavity. To meet fireblocking standards, architects opted in using permeant obstruction fireblocking, such as mineral wool, to compartmentalize the cavity in an active fire scenario. However, this form of fireblocking blocks the entirety of the exterior cavity in normal operations. With this blockage, it permits poor water management, blocked air circulation, and raising humidity levels – the exact opposite of a ventilated rainscreen assembly’s purpose.

Therefore, the Storm King project team needed a fireblocking solution that can resolve the “rainscreen conundrum” while meeting proper fireblocking standards in the future David R. Collens Building.

Specifying NYC/OTCR Approved Intumescent Fire Blocks in Exterior Cladding

Composed of self-activated intumescent materials, Tenmat’s FF102/50 Intumescent Fire Blocks can maintain a continuous air cavity during normal operations – well suited for the team’s standards for energy conservation.

Not like traditional fireblocking, Tenmat’s Intumescent Fireblocking allows for a maximum 2” air gap within the façade assembly. By not obstructing the open-state air cavities during normal operations, Tenmat’s Intumescent Fire Blocks are able to promote air circulation and moisture management. In fire conditions, however, exposure to extremely high temperatures activates the self-activated intumescent technology. Once activated, the material will expand rapidly and seal the cavity – effectively compartmentalizing the fire.

By balancing performance and compliance, Tenmat’s FF102/50 Intumescent Fire Block was specified into the David R. Collens Building. The project team was able to easily integrate this form of fireblocking into the exterior wood cladding assembly.

Download Full Case Study.

Rainscreen Façades and Special Inspections – NYC Edition

NYC skyline at sunset with text: NYC Special Inspection and educational series.

Understand what criteria triggers a special inspection for combustible exterior wall coverings and fireblocking in New York City.

 

Previously in our Intumescent Fire Block Educational Series, we took a brief glance at the code language of IBC’s Section 718.2.6 Exterior Wall Coverings. To review the details we’ve covered, click here.  In this piece, we began to touch on the “equivalent” to this code section, the 2022 New York City Building Code Section 718.2.6 Architectural Trim. It is important to note that this code section has adopted a variety of requirements and exceptions that has changed the practice of constructing cladding projects in the New York City Landscape. If you are interested in learning more about the ins and outs of this section of the code, please schedule a free AIA session with Tenmat’s Mirka Carlson here.

One of the main differences between the IBC and ’22 NYC Building code is NYC’s requirement for a special inspection – specifically, for applications containing combustible cladding systems. Today, we will be examining special inspections, where they are addressed in the 2022 New York City Building Code, who can provide this type of inspection, and how architects are facing this challenge. Now, let’s get started.

In New York City, do I require a special inspection when installing a combustible exterior wall assembly?

Yes – New York City does require a special inspection when working with combustible exterior wall coverings It is important to note that this special inspection is only required for projects located in New York City. Many other jurisdictions also require special inspections for certain exterior wall systems (EIFS is a common example), but the scope and triggers vary by code adoption.

Where in the NYC code does it address the requirement for a special inspection when working with combustible cladding?

When dealing with exterior wall coverings, we often refer to Section 718.2.6 Architectural Trim in the 2022 NYC Building Code Adoption. However, the requirement is not addressed in Chapter 7 – it is addressed in Chapter 17 Special Inspections and Tests.

In Section 1705.16 Combustible Exterior Wall Coverings, it states

 

1705.16 Combustible Exterior Wall Coverings

Special inspections shall be required for all exterior wall coverings containing combustible materials installed more than 15 feet (4572 mm) above adjacent finished grades and alterations to existing exterior wall coverings containing combustible materials installed more than 15 feet (4572 mm) above adjacent finished grades. Exterior insulation and finish system (EIFS) applications, metal composite materials (MCM), high-pressure decorative exterior-grade compact laminates (HPL) and exterior wall covering containing combustible veneers, combustible framing, combustible water-resistive barriers and foam plastic insulation installed more than 15 feet (4572 mm) above adjacent finished grades and alterations to existing installations more than 15 feet (4572 mm) above adjacent finished grades shall be inspected in accordance with Section 1705.16.1.

In Figure 1, you can see the full breakdown of the Special Inspection requirements including the code’s exceptions and more. If you have any questions regarding this code, please contact your local jurisdiction to ensure you meet all code requirements.

Building code text on combustible exterior wall coverings, highlighted in pink.
Figure 1

How does this special inspection affect architects in New York City?

When specifying combustible exterior wall coverings, architects must properly detail exterior wall coverings and include this new special inspection requirement on the list of necessary special inspections. On a positive side, this special inspection can mitigate some of the concerns regarding installation matching the project documents – allowing peace of mind after project completion.

The inspection program shall include verification of compliance with the approved construction documents for the following:

  • Attachment to structure,
  • Component properties,
  • Thicknesses, orientation, cavity sizes and location of thermal barriers, fireblocking and cavity closures,
  • Installation of waterproofing membranes, weeps, drains, mold prevention features are as specified,
  • Conformance with the manufacturers’ installation instructions, and
  • NFPA 285 tested assembly design documentation.

By ensuring you follow these criteria, you’ll help avoid delays for missing special inspections.

Is there a special inspection requirement for fireblocking in a combustible cladding assembly?

When working with certain cladding applications in New York City, the inclusion of fireblocking is required in many conditions, and the special inspection for combustible exterior wall coverings review fireblocking in this system as well. In Figure 2, it displays a snapshot on the requirements for fireblocking in this application. By referring to Chapter 7, it’s safe to say assume that architects should specifically refer to Section 718.2.6 Architectural Trim of the 2022 New York City Building Code.

Instead of independently reviewing Section 718.2.6, Tenmat USA provides an accredited educational course that offers an overview of the section and guidance on the fireblocking solutions most appropriate for these applications. Reach out to info@tenmatusa.com to schedule your free session today!

NYC building code 1705.16.4 on fireblocking, text highlighted in pink in a screenshot.
Figure 2

Who can perform a special inspection for fireblocking in combustible exterior wall coverings?

Although it may be assumed that all building inspections are conducted by the New York City Department of Buildings, special inspections operate differently.  Special inspections must be performed by qualified special inspectors on behalf of a DOB registered Special Inspection Agency (SIA), and agencies/inspectors must meet NYC qualification requirements. To assist in locating a qualified agency, use the search tool from Internation Accreditation Service (IAS).

In our case, we will be looking specifically for Special Inspection Agencies in – New York. Click here to review the results from this search. Once, arriving on this page, you will be able to review the certificate(s) that each agency has obtained. In Figure 3, we highlighted what certificate architects would need to look for when trying to locate an agency that can perform a special inspection for their combustible cladding application.

 Special Inspections Outside of NYC

Obtaining an approved special inspection for combustible exterior wall covering is required for issuance of the certificate of occupancy. If closeout documentation is incomplete, issuance may be delayed, which can delay project completion. Other jurisdictions may require special inspections for certain exterior wall systems (EIFS is one common example), and requirements vary by code adoption and building conditions. However, this requirement may evolve as the use of cladding systems containing combustible components continues to grow due to their cost‑effectiveness and aesthetic appeal. Correspondingly, the need for clear and comprehensive code provisions governing these assemblies has also increased.

In conclusion, these New York City special inspections may not be relevant to you now; however, this may change in the near future.

Case Study: ALCOSAN East Headworks Expansion Project

Modern building and parked trucks, with text: ALCOSAN EAST Headworks Expansion.

Tenmat’s FF102/50Plus Intumescent Fire Block was selected to fit a wide open-state cavity in a new-construction wastewater facility in Allegheny County, PA.

 

Strengthening Infrastructure for a Growing Community

Serving over 83 municipalities, including the city of Pittsburgh, ALCOSAN East Headworks plays a primary role in Allegheny County, Pennsylvania. By delivering 250 MGD (million gallons per day) to the county, ALCOSAN fuels its communities with treated water for its everyday usage. As the population continues to grow, the demand for treated water grows with it.

To meet future demand and improve system resiliency, ALCOSAN committed to a significant expansion of its operations. Once complete, the facility will be able to treat up to 600 million gallons per day (mgd)—an impressive increase of 350 mgd from its original capacity.

This milestone project represents a major investment in sustainable public infrastructure and reflects ALCOSAN’s long‑term commitment to the region’s environmental health and growth.

 

Design Decision Triggers New Compliance Requirements

As part of the expansion, the developer selected an engineered stone cladding system for the building façade. While offering durability and aesthetic advantages, this choice also triggered important fireblocking requirements under IBC Section 718.2.6 – Exterior Wall Coverings, which mandates proper fireblocking within exterior wall cavities when certain cladding materials are used. View the full IBC Section 718.2.6 Exterior Wall Coverings.  By triggering this section of the code, ALCOSAN’s new expansion project will now require fireblocking in its exterior wall assembly.

 

A Unique Challenge: An Unusually Wide Ventilated Air Cavity

Unlike typical exterior wall assemblies, the engineered stone system incorporated a significantly wider ventilated air cavity. This design difference introduced a unique challenge. The wider cavity meant that the project team not only had to ensure fireblocking was installed but also had to identify a fireblocking solution capable of spanning the full width of the cavity—something standard fireblocking products are often not designed to accommodate.

This requirement added complexity to the assembly design, demanding a fireblocking material that could maintain code compliance, performance integrity, and seamless integration with the cladding system’s architectural intent.

Selecting a Fireblocking Solution Built for Performance

To meet both the requirements of IBC Section 718.2.6 and the unique width of the ventilated air cavity, the project team selected Tenmat’s FF102/50Plus Intumescent Fire Block for the ALCOSAN expansion. This solution offered the versatility and performance needed to accommodate the wider cavity while delivering reliable fire protection.

By integrating the FF102/50Plus into the wall assembly, ALCOSAN was able to confidently move forward with its preferred engineered stone cladding design. The fire block not only met the stringent fireblocking criteria required by code but also preserved the assembly’s airflow and moisture‑management performance, ensuring the durability and long‑term functionality of the exterior envelope.

Download Full Case Study.

Tenmat and Hoover Architectural Solutions (HAS) Achieve NYC Code Compliance in Successful NFPA 285 Test

Tenmat and Hoover logos with "Successful NFPA285 Test" in a red box.

Advanced Self-Expanding Mineral Wool Technology Prevents Flame Spread in Ventilated Exterior Wall Cavities in Rainscreen Applications in Successful NFPA285 Test

Wilmington, DE – March 23, 2026 –Tenmat, a recognized leader in passive fire protection, is pleased to announce the completion of another successful NFPA285 test incorporating Tenmat’s FF102/50 Intumescent Fireblocking and Hoover Architectural Solutions, LLC’s (HAS) Reynobond® 4mm FR Aluminum Composite Material (ACM).

This collaboration was driven by the adoption of the 2022 NYC Building Code Section 718.2.6 Architectural Trim, which now requires fire blocking within rainscreen assemblies that include any component deemed combustible. To meet these new standards, Tenmat and HAS conducted a successful NFPA 285 fire test at Intertek Laboratories, combining Tenmat’s FF102/50 Intumescent Fireblocking, and Reynobond® 4mm FR ACM into an integrated system.

For architects and design professionals, this collaboration permits greater design freedom in a strict landscape without sacrificing compliance or budget. Hoover Architectural Solutions has helped architects, specifiers and contractors realize their visions for bold, high performing designs that have redefined skylines for over 50 years. Certified to ISO 9001:2015 standards, HAS is a leading manufacturer of composite materials, plate, and single skin aluminum sheets for the North American architectural and retail markets. With a strong commitment to excellence, extensive industry expertise, dedication to innovation, and unrivaled service, HAS empowers architects and design professionals to Build Bolder.

“Achieving NFPA 285 compliance gives the market a clear, dependable ACM solution for New York City. This milestone reduces risk, streamlines approvals, and ensures projects can move forward with confidence under the 2022 code,” said HAS Director of Sales, Ryan Long. “We see this as the start of a new era where advanced ACM installation methodology plays a pivotal role in shaping NYC’s skyline with confidence, code compliance, and the ability to Build Bolder. By integrating Tenmat’s FF102/50 Fireblocking with Reynobond® 4mm FR, we’ve proven that high‑performance façades can meet the city’s strict requirements without limiting architects’ creativity.”

Intumescent Fireblocking

At the heart of this solution is Tenmat’s FF102/50, a compact, reactive intumescent fire block engineered for ventilated cladding systems. With its promotion of airflow, moisture control, and energy efficiency – key indicators of rainscreen performance – while activating in the presence of high temperatures and flames to seal off air cavities and off put flame spread.

When exposed to high temperatures, the FF102/50 expands up to 25 times its original thickness, forming a robust fire block that helps contain fire and protect building occupants. Its rigid structure supports easy installation and long-term durability, making it a practical choice for both new construction and retrofit applications.

“With the successful completion of yet another NFPA285 test, Tenmat Intumescent Fireblocks reinforce their position as a game-changing solution for architects, delivering code compliance while unlocking the full benefits of ventilated rainscreen cladding systems with metal composite materials,” said Marco Kristen. “With NYC OTCR/DOB approval and exceptional performance in ventilated rainscreen systems, our intumescent fireblocks are helping usher ACM back into the forefront of modern architecture, restoring innovation, enhancing safety, and expanding design freedom across the built environment.”

Engineered for Compliance, Built for Performance.

This NFPA 285 test assembly was specifically constructed according to Section 718.2.6 Architectural Trim in the ’22 NYC Building Code Adoption, with fire blocks installed around window openings and slab —precisely where the code requires protection. The result is a fully ventilated wall system that meets modern building science standards while delivering critical fire resistance.

With this successful test, Tenmat’s FF102/50 and Reynobond® 4mm FR ACM offer comprehensive, code-compliant rainscreen systems in dense urban environments, such as the NYC landscape. Together, these companies are helping shape a safer, more resilient future for architectural design.

 

About Hoover Architectural Solutions, LLC

Certified to ISO 9001:2015 standards, Hoover Architectural Solutions, LLC (HAS) is a leading manufacturer of composite materials, plate, single skin aluminum and profiled sheets for the North American architectural and retail markets. Architects, contractors, and specifiers rely on Reynobond®, Reynoplate®, Reynoclad® and Reynodual® products to amplify the visual impact of their ideas – making their next bold design even bolder. Offering long-term and cost-effective solutions, these coil-coated sheets are durable, weather resistant, and easy to fabricate and maintain for interior and exterior use. Our ever-expanding range of colors and finishes, combined with unrivaled expertise and service, empower architects to Build Bolder.

 

 

Case Study: New Providence / 225 E 45th Street

Tall building with "Case Study: New Providence / 225 E. 45th Street" text overlaid.

Tenmat Intumescent Fire Blocks were the chosen to meet stringent NYC fireblocking requirements in Midtown’s new development, New Providence.

Originally known as a seven-story city shelter, 225 E 45th Street is now supporting a new face. With being demolished in 2024, 225 E 45th Street will become the future home of New Providence. New Providence will house 131 units of affordable/supportive housing, 170 shelter beds for a women’s shelter, along with an upgraded primary care clinic.

Designed with an ACM and brick cladding system, the 21-story new development triggered one of the most stringent fireblocking requirements in New York – Section 718.2.6 Architectural Trim of the 2022 NYC Building Code Adoption. With this adoption, it requires a façade application with combustible components, such as the design of New Providence, to integrate fireblocking into the exterior wall assembly.

Dedicated to ensuring proper life safety standards, Tenmat’s NYC OTCR/DOB Approved Intumescent Fireblocking was selected for this application. With its NYC OTCR/DOB approval in accordance with Section 718.2.1, Tenmat’s Intumescent Fireblocking allows peace of mind for New Providence’s selected architects and developers – however, this is not the only key advantage of specifying Tenmat Intumescent Fireblocking into a NYC cladding system.

In normal conditions, the Tenmat’s Intumescent Fireblocking allows for a maximum 2” air gap within the façade assembly. With this gap, the air cavity will promote proper air circulation and moisture management – the key benefits of integrating a ventilated air cavity. When exposed to extremely high temperatures, the intumescent components within Tenmat’s Intumescent Fire Blocks will be activated. Once activated, the materials will expand rapidly – compartmentalizing the fire.

To ensure New Providence’s cladding system and Tenmat’s FF102/50 Intumescent Fire Block meet NYC standards, this system underwent an NFPA 285 test. The results of this test were successful. If you are interested in learning more about these test results, contact Tenmat USA.

 Download Full Case Study.

What is intumescent fireblocking?

Text asks What is intumescent fireblocking? with a wall and diagram shown behind the words.

Learn how the standards of fireblocking in exterior wall assemblies have changed after introducing intumescent fireblocking into the most stringent construction landscape – New York City.

In our Intumescent Fireblocking Series, we have introduced a wide range of topics surrounding the general topic of fireblocking in exterior wall assemblies. In our series, we established:

If this is the first article you have come across, we suggest you starting with our first article, “When is fireblocking required in ventilated rainscreen systems?”, so, you don’t miss the basics of fireblocking in ventilated rainscreen systems.

In today’s article, we will continue expanding on the topic of intumescent fireblocking from our previous blog, “The Challenges of Exterior Wall Fireblocking”.  From understanding the functionality of intumescent fireblocking to how it has changed the standards of fireblocking, this article will allow you to gain the basic knowledge of this innovative technology. Now, let’s dive in!

What is intumescent fireblocking? How does it work?

Intumescent fireblocking – an innovative fireblocking technology engineered to maintain the balance of performance and compliance in ventilated rainscreen assemblies. Prior to this technology, traditional fireblocking solutions posed several challenges that limited architects in their design freedom.

Unlike intumescent fireblocking, traditional fireblocking is activated during normal operations, not just when a fire is present.  With this activation, this type of fireblocking sections off certain parts of the ventilated air cavity. This results in a negative performance in both air circulation and moisture control. Ultimately, defeating the purpose of incorporating a ventilated rainscreen assembly.

With the use of intumescent fireblocking, the technology is only activated when exposed to high temperatures. In normal conditions, an intumescent fire block is attached to the mineral wool of the exterior wall assembly – leaving of 1.75” gap between the face of the intumescent fire block and the exterior wall.

As a result of this, the gap allows for proper air circulation and moisture management in the air cavity – bringing forth the true purpose of installing a ventilated rainscreen system.

View Figure 1 to see the difference between using traditional fireblocking versus intumescent fireblocking in an exterior wall air cavity.

Permanent vs. intumescent fireblocking: water, air, and fire protection comparison.
Figure 1

Is intumescent fireblocking tested and approved?

At this time, there is only one tested and approved intumescent fireblocking, Tenmat’s Intumescent Fire Blocks. Tenmat’s Intumescent Fire Blocks have undergone extensive fire testing, such as NFPA 285. However, there is one test that sets Tenmat’s Intumescent Fire Blocks apart from other intumescent fireblocking.

With its NYC OTCR/DOB approval in accordance with Section 718.2.1, Tenmat’s Intumescent Fire Blocks are the only approved intumescent approved for the NYC landscape.

How has this NYC OTCR/DOB approval changed the landscape for New York City?

With its NYC OTCR/DOB approval, Tenmat’s Fire Block has created a major break-through for cladding OEMs and architects within New York City. With this approval, it has allowed architects to re-enter applications that were once banned from the NYC landscape (as of 2022). This opportunity allows for freedom in architectural design – resulting in no limitations in building materials and applications.

What types of cladding applications can intumescent fireblocking be used in?

In addition to our NYC/OTCR DOB approval, Tenmat’s Intumescent Fire Blocks has had several successful NFPA285 tests with a variety of assemblies with different cladding and insulation manufacturers.

From ACM (Aluminum Composite Material) Cladding to HPL (High Pressure Laminated) Cladding, Tenmat’s Intumescent Fire Blocks has performed successfully in a wide range of cladding applications. If you are interested in learning more about each one of our successful NFPA 285 tests, contact one of our on-site experts.

Final Remarks

By introducing an innovative fireblocking technology, such as intumescent fireblocking, architects have finally uncovered the balance of maintaining design performance while complying with stringent fireblocking requirements in a ventilated rainscreen assembly.

From its range of successful NFPA 285 tests and upcoming project specifications, Tenmat’s Intumescent Fireblocking has allowed opportunity back into some of the most stringent cityscapes, such as New York City.  If you are interested in using Tenmat’s Intumescent Fire Blocks in your next project, let’s connect.