Firestop Installation Guide for Contractors

Firestopping is one of those parts of construction that does not get much attention until something goes wrong. It sits quietly inside walls and floors, and most people never think about it. But when a fire breaks out, properly installed firestop materials are the difference between a contained incident and a catastrophic loss.

For contractors, firestopping is also a frequent source of inspection failures and costly rework. The rules are specific, the products are specialized, and the consequences of doing it wrong are serious. This guide covers everything you need to know about firestop installation, from understanding the basics to passing inspections consistently.

Why Firestopping Matters

Modern buildings are designed with fire compartments. Fire-rated walls, floors, and ceilings divide the building into sections that can contain a fire for a specific period, typically one or two hours. This containment gives occupants time to evacuate and firefighters time to respond.

Every time a pipe, cable, duct, or other item passes through a fire-rated assembly, it creates an opening. Without proper firestopping, that opening becomes a pathway for fire, smoke, and toxic gases to spread rapidly through the building.

Smoke kills more people in fires than flames do. A small unsealed penetration can allow deadly smoke to travel through a building in minutes, reaching areas that occupants assume are safe. Firestopping closes those pathways.

Beyond life safety, firestopping is a code requirement. The International Building Code (IBC), local building codes, and fire codes all require firestopping at penetrations through fire-rated assemblies. Failure to install proper firestopping can result in failed inspections, project delays, fines, and significant liability exposure.

Understanding Fire-Rated Assemblies

Before you can firestop properly, you need to understand what you are working with.

Fire-Rated Walls

Fire-rated walls include:

• Firewalls: Structural walls designed to prevent fire spread between buildings or building sections. Typically rated for 2 to 4 hours.
• Fire barriers: Walls that separate different occupancy types, exit enclosures (stairwells), and horizontal exits. Usually rated for 1 to 2 hours.
• Fire partitions: Walls separating dwelling units, guest rooms, and corridor walls. Typically rated for 1 hour.
• Smoke barriers: Walls designed to restrict smoke movement. May or may not have a fire rating.

Fire-Rated Floor/Ceiling Assemblies

Horizontal fire-rated assemblies separate floors in multi-story buildings. These assemblies include the structural floor, any required insulation, and the ceiling membrane below. Penetrations through these assemblies require firestopping on the floor side and sometimes on the ceiling side as well.

How to Identify Fire-Rated Assemblies

On construction projects, fire-rated assemblies are identified on the architectural drawings. Look for wall type schedules, fire rating notations, and partition details. When in doubt, ask the architect or fire protection engineer.

On existing buildings, fire-rated walls are sometimes marked with labels or stamps, but not always. Review the original construction documents when working on renovation or tenant improvement projects.

Types of Penetrations

Different types of penetrations require different firestop approaches. Understanding the categories helps you select the right products and systems.

Metallic Pipes

Steel, copper, and cast iron pipes passing through fire-rated assemblies. These are relatively straightforward because metal does not burn or melt at typical fire temperatures. Firestopping for metallic pipes usually involves filling the annular space around the pipe with firestop caulk, mortar, or mineral wool.

Non-Metallic Pipes

PVC, CPVC, ABS, and PEX pipes present a greater challenge because they melt and burn at fire temperatures. When a plastic pipe melts away, it leaves an open hole through the fire-rated assembly.

Firestopping for plastic pipes typically involves intumescent materials that expand when heated. As the plastic pipe melts, the intumescent material swells to fill the void and maintain the fire rating. Common solutions include intumescent wrap strips, intumescent collars, and cast-in-place devices.

Electrical Cables and Cable Trays

Individual cables, cable bundles, and cable trays require firestopping where they pass through fire-rated assemblies. The challenge is that cable penetrations often change as systems are modified over the building’s life. Firestop solutions for cables need to allow for future additions while maintaining the fire rating.

Common solutions include firestop pillows (removable and re-configurable), firestop mortar, intumescent putty, and firestop cable transit systems.

HVAC Ducts

Metal and flexible ducts require firestopping at penetrations through fire-rated assemblies. In many cases, fire dampers are also required within the duct to prevent fire spread through the ductwork itself. The firestop system and fire damper work together to maintain the rated assembly.

Mixed Penetrations

When multiple types of penetrating items pass through the same opening, the firestop system must be tested and listed for that specific combination. You cannot simply apply individual firestop solutions to each item in a shared opening.

Blank Openings

Openings cut in fire-rated assemblies for future penetrations or abandoned penetrations must also be firestopped. Do not leave open holes in fire-rated walls or floors, even temporarily during construction.

Firestop Products and When to Use Them

The firestop product market has grown significantly, and there are now specialized products for nearly every situation. Here is a breakdown of the most common products.

Intumescent Caulk

Intumescent caulk looks and applies like regular caulk but swells significantly when exposed to heat. It is the most commonly used firestop product for small penetrations and annular spaces around pipes and cables.

Best for: Metallic pipes, small cable bundles, individual conduits, and small annular spaces.

Application tips: Apply to the correct depth (typically the full thickness of the wall or floor assembly). Do not over-apply or under-apply. Follow the manufacturer’s instructions for bead size and depth.

Firestop Mortar

A cement-like material that hardens after application. Firestop mortar provides a durable, rigid seal suitable for large openings and high-traffic areas.

Best for: Large penetrations, cable tray openings, and areas where a rigid seal is preferred.

Application tips: Mix per manufacturer’s instructions. Apply in the thickness specified by the listed system. Some mortars require reinforcing mesh for larger openings.

Mineral Wool

Non-combustible mineral wool insulation is used as a backing material in many firestop systems. It fills the bulk of the annular space, with caulk or putty applied on top to complete the seal.

Best for: Large annular spaces around pipes and cable bundles. Used as a component of multi-material firestop systems.

Application tips: Pack tightly to the density specified by the listed system. Do not leave gaps or voids.

Intumescent Wrap Strips

Wrap strips are designed specifically for non-metallic (plastic) pipes. The strip wraps around the pipe at the penetration point and is secured with fasteners. When exposed to fire, the strip expands inward, crushing the softened pipe and sealing the opening.

Best for: PVC, CPVC, ABS, and other plastic pipe penetrations.

Application tips: Wrap the correct number of layers as specified by the system. Secure with the specified fasteners. Do not substitute different wrap products.

Firestop Pillows

Pillows filled with intumescent material that can be stacked in openings around cables and pipes. They are removable and re-configurable, making them ideal for cable penetrations that may change over time.

Best for: Cable tray openings, telecommunications rooms, data centers, and any penetration that needs to be reconfigured frequently.

Application tips: Stack tightly with no gaps. Follow the listed system for required depth and configuration.

Cast-In-Place Devices

Sleeves and devices that are installed during concrete placement. They provide a pre-formed, firestopped opening for pipes to pass through floor slabs.

Best for: New construction with concrete floor slabs. Simplifies firestopping by building it into the structure.

Application tips: Install before concrete placement. Verify correct device for the pipe type and size that will be installed.

The UL System: Your Firestop Roadmap

Every firestop installation must follow a tested and listed system. The most commonly referenced listings come from UL (Underwriters Laboratories), published in the UL Fire Resistance Directory.

What a UL System Includes

Each UL firestop system specifies:

• The type of fire-rated assembly (wall type, floor type, rating)
• The penetrating item (pipe type, size, cable type, etc.)
• The firestop product and manufacturer
• The installation method (depth, width, layers, fasteners)
• Any required backing material or accessories

Finding the Right System

Start with the penetrating item and the fire-rated assembly type. The firestop manufacturer’s website typically has a system selector tool where you input these variables and get a list of applicable systems.

You can also search the UL Product iQ database directly. Look for UL system numbers that match your specific conditions.

Following the System Exactly

This is where many contractors get into trouble. A UL firestop system is tested as a complete configuration. Changing any variable, such as the caulk depth, the backing material, the pipe size, or the wall type, can invalidate the listing.

If the system says to apply 5/8 inch of caulk over 4 inches of mineral wool, that is exactly what you must install. No more, no less. If the system specifies a particular brand of caulk, you must use that brand or find another system that lists the product you want to use.

Installation Best Practices

Following these practices will improve the quality of your firestop installations and reduce inspection failures.

Surface Preparation

Clean the penetration opening before applying firestop materials. Remove dust, debris, oil, and any other contaminants that could prevent adhesion. For caulk and sealant applications, surfaces should be dry and free of frost.

Proper Annular Space

The gap between the penetrating item and the edge of the opening (the annular space) must fall within the range specified by the UL system. If the opening is too large, the firestop system may not be valid. If it is too tight, you may not be able to install the required material depth.

Plan your core drilling and cutting to create openings that match the system requirements. It costs less to drill the right size hole the first time than to rework an opening that is too large or too small.

Depth and Thickness

Apply firestop materials to the exact depth specified by the listed system. For caulk applications, this means measuring the depth of application, not just squirting some caulk into the hole. Use backer rod or mineral wool to control caulk depth in deep openings.

Labeling

Many jurisdictions and project specifications require firestop locations to be labeled with the UL system number. Labels should be permanent, visible, and placed adjacent to the firestopped penetration. Pre-printed firestop labels are available from most manufacturers.

Temperature and Conditions

Most firestop products have temperature and humidity requirements for installation. Caulk and sealants typically need to be applied at temperatures above 40 degrees Fahrenheit. Check the product data sheet for specific requirements.

Inspection Preparation

Firestop inspections can be conducted by the building inspector, the fire marshal, or a third-party special inspector, depending on the jurisdiction and project requirements.

Pre-Inspection Self-Check

Before calling for the inspection, walk every fire-rated assembly and verify:

• All penetrations are firestopped
• Correct products are used for each application
• Installation matches the specified UL system
• Materials are applied to the correct depth and thickness
• Labels are in place (if required)
• No penetrations are missing firestop

Documentation Package

Prepare a documentation package that includes:

• A firestop log listing every penetration location, the UL system used, and the product installed
• Photos of representative installations (before and after)
• Product data sheets and material safety data sheets
• UL system detail drawings
• Installer qualification records (if required by spec)

Common Inspection Failures

The most frequent firestop inspection failures include:

Missing firestop: Penetrations that were simply overlooked. This is especially common in above-ceiling spaces and mechanical rooms where many penetrations exist.

Wrong product for application: Using a system designed for metallic pipes on a plastic pipe penetration, or using a product not listed for the specific wall type.

Incorrect depth or thickness: Applying less material than the system requires. This is hard to verify after the fact, so inspectors may require removal and re-application if the depth appears insufficient.

Non-listed configuration: Combining products or deviating from the tested system in ways that invalidate the listing.

Poor workmanship: Gaps, voids, missing backing material, or sloppy application that clearly does not meet the system requirements.

Coordination and Project Management

Firestopping touches every trade on the project. Effective coordination is essential.

Assigning Responsibility

Clearly define in the project specifications and subcontracts who is responsible for firestopping. The three common approaches are:

1. Each trade firestops their own penetrations. Simple in concept but hard to enforce. Requires careful tracking to ensure nothing is missed.

2. A dedicated firestop subcontractor handles all penetrations. More expensive but produces more consistent results. The firestop sub typically has specialized knowledge and trained installers.

3. The general contractor handles all firestopping. Places the burden and cost on the GC but ensures a single point of responsibility.

Whatever approach you choose, document it clearly and communicate expectations to every trade.

Timing

Firestopping cannot happen until penetrations are complete, but it must happen before walls and ceilings are closed. This creates a narrow window that requires careful scheduling.

Build firestop installation into your project schedule as a specific activity, not an afterthought. Allow time for inspection and any corrections before closing up walls.

Tracking Penetrations

On large projects, tracking every penetration through fire-rated assemblies is a significant task. Use your project management software to create a firestop log that captures:

• Location (building, floor, wall/floor ID, grid line)
• Penetrating item (type, size, trade)
• UL system number
• Product used
• Installation date
• Inspection status

Projul and similar construction management platforms can help you organize this information by project phase and trade, making it easy to track completion and prepare for inspections.

Special Situations

Some firestop scenarios require extra attention.

Renovation and Tenant Improvement Work

Working in existing buildings presents challenges because the original fire-rated assemblies may not match current code requirements, and existing penetrations may have incorrect or deteriorated firestopping. Before adding new penetrations, assess the existing conditions and address any deficiencies.

Movement Joints

Where fire-rated assemblies cross building expansion joints, movement joints, or seismic joints, the firestop system must accommodate the expected movement. Standard rigid firestop products will crack and fail at movement joints. Use systems specifically designed and tested for joint applications.

Curtain Wall and Perimeter Fire Barriers

The gap between the edge of a floor slab and the exterior curtain wall or cladding system requires a perimeter fire barrier. This is a specialized firestop application that uses mineral wool and firestop caulk or spray to seal the gap and maintain the floor’s fire rating at the building perimeter.

Grease Ducts

Kitchen grease ducts require special firestop systems due to the high temperatures and grease exposure. Standard firestop products are not suitable for grease duct penetrations. Use systems specifically tested for this application.

Training and Qualification

Firestop installation is a specialized skill. Investing in training for your crews pays off in fewer inspection failures and better protection for building occupants.

Manufacturer Training

Most firestop manufacturers offer training programs that cover their products, UL systems, and installation techniques. Some offer certification programs that verify installer competency.

Third-Party Certification

Organizations like the Firestop Contractors International Association (FCIA) offer installer certification programs. Some project specifications require certified firestop installers.

On-the-Job Training

For crews new to firestopping, pair them with experienced installers. Review the UL systems being used on the project and walk through the installation requirements before work begins.

Firestop Budgeting and Cost Control

One of the biggest headaches with firestopping is that it rarely gets the budget attention it deserves during preconstruction. Firestop costs show up late, they are hard to estimate without a penetration count, and they always seem to be higher than what was carried in the original bid. Getting a handle on costs early can save you from eating margin on every job.

Why Firestop Costs Surprise Contractors

The root cause is usually that firestopping is treated as an incidental cost rather than a standalone line item. A mechanical contractor might carry a small allowance for “firestopping and miscellaneous,” but that number was a guess made before anyone counted the penetrations. On a mid-size commercial project, the actual firestop scope can easily run $15,000 to $50,000 or more, depending on the number of fire-rated assemblies and the density of MEP systems.

The other factor is product cost. Intumescent caulk is not cheap. A single tube of listed firestop sealant runs $12 to $25 depending on the brand, and a large project can burn through cases of it. Specialty products like intumescent wrap strips, cast-in-place devices, and firestop pillows add up fast when you are firestopping hundreds of penetrations.

How to Build an Accurate Firestop Estimate

Start with the architectural drawings and count every fire-rated wall and floor assembly. Then cross-reference with the MEP drawings to identify every penetration through those assemblies. This gives you a rough penetration count.

For each penetration type, identify the likely UL system and the products required. Group them into categories: small pipe penetrations (under 4 inches), large pipe penetrations, cable and conduit penetrations, cable tray openings, duct penetrations, and blank openings. Price each category based on average material and labor per penetration.

Labor is where estimates often fall short. A simple caulk application around a copper pipe might take 15 minutes. A large cable tray opening with mineral wool backing and multiple layers of sealant could take an hour or more. Add time for surface prep, staging, and moving between floors. On renovation projects, add time for assessing and repairing existing firestop conditions.

If you are using construction estimating tools or project management software, set up firestopping as its own cost code so you can track actual costs against estimates and improve your numbers on future bids.

Reducing Firestop Costs Without Cutting Corners

There are legitimate ways to control firestop costs that do not involve skipping penetrations or using cheaper products.

Consolidate penetrations. Where possible, route multiple pipes or cables through a single larger opening rather than drilling individual holes. One large firestopped opening is often less expensive than five small ones, and it is easier to inspect.

Use cast-in-place devices on new construction. For concrete floor slabs, cast-in-place firestop sleeves installed during the pour eliminate the need for post-pour firestopping at those locations. The devices cost more upfront but save significant labor.

Coordinate early. The most expensive firestop work is the rework that happens after walls are closed and the inspector flags missing firestop. A single re-opened wall can cost more than firestopping 20 penetrations correctly the first time. Build firestop walks into your schedule before drywall closure on every floor.

Train your own crews. If you are a GC handling firestop in-house, trained crews work faster and produce fewer inspection failures. The investment in training pays back within a few projects through reduced rework and material waste.

Track everything in your project management platform. When you have a clear picture of how many penetrations are complete versus outstanding, you can schedule firestop labor efficiently instead of scrambling at the end of the job. Tools like Projul’s scheduling features make it straightforward to assign firestop tasks and track completion by area.

Common Firestop Mistakes and How to Avoid Them

After years of seeing the same problems on job sites, the list of common firestop mistakes is depressingly predictable. Here are the ones that cause the most rework, failed inspections, and uncomfortable conversations with building officials.

Mistake 1: Using Spray Foam as Firestop

This one shows up constantly, especially on smaller projects and residential work. Spray foam insulation is not a firestop product. It does not have the fire resistance properties needed to maintain a rating, and it will fail catastrophically in a fire. Yet crews reach for the spray foam can because it is already on site and it fills gaps quickly.

The fix is simple: keep actual firestop caulk on site and make sure every crew member knows the difference. If you see orange foam in a fire-rated wall, it needs to come out and be replaced with a listed product.

Mistake 2: Firestopping the Wrong Side of the Assembly

On floor penetrations, the firestop system typically needs to be installed on the top side of the floor slab. Installing it only on the underside (the ceiling side) may not satisfy the UL system requirements. On wall penetrations, firestopping is usually required on both sides of the wall, or at minimum, on one specific side as dictated by the system.

Always check the UL system drawing for the required installation location. Do not assume that firestopping one side is sufficient.

Mistake 3: Ignoring Annular Space Requirements

The gap around a penetrating item matters. If a UL system is tested with a 1-inch annular space and your opening leaves a 3-inch gap, that system may not be valid for your condition. Oversized openings are common when core drilling goes wrong or when a penetration is relocated and the old hole is reused.

When you encounter an oversized opening, do not just pack it full of caulk and hope for the best. Find a UL system that covers the actual annular space you have, or resize the opening to match your intended system.

Mistake 4: Missing Penetrations in Concealed Spaces

Above-ceiling spaces are where firestop penetrations go to hide. Pipes and cables running through fire-rated walls above the ceiling grid are easy to overlook because you cannot see them from the floor. Mechanical rooms, electrical rooms, and shaft walls are other common locations where penetrations get missed.

The solution is a systematic walk of every fire-rated assembly, including the concealed portions. Bring a ladder, bring a flashlight, and check above every ceiling tile along fire-rated walls. On large projects, assign someone specifically to this task. It is tedious but it prevents the inspector from finding what you missed.

Mistake 5: Not Accounting for Cable Fill Changes

In office buildings and data centers, cable penetrations through fire-rated walls change constantly as tenants move in, move out, and remodel. A firestop system that was correctly installed with 40% cable fill may become invalid when additional cables are pulled through the same opening, increasing the fill to 80%.

For locations where cable changes are expected, use re-enterable firestop systems like pillows or modular cable transit devices. These allow cables to be added or removed without destroying and reinstalling the firestop.

Mistake 6: Forgetting to Firestop Before Closing Walls

This is the expensive one. Drywall goes up, the inspector shows up, and firestop is missing behind finished walls. Now you are cutting open drywall, firestopping, patching, taping, painting, and doing it all on your own dime because the schedule already moved past that phase.

The best prevention is treating firestop as a hold point in your schedule. No wall gets closed until firestop is verified complete in that area. If you are using a daily log or project tracking system, add firestop verification as a required checklist item before drywall authorization.

Mistake 7: Substituting Products Without Checking Listings

Running low on one brand of firestop caulk so someone grabs a different brand from the supply house. The problem is that UL systems are product-specific. If the system calls for Brand A caulk and you install Brand B, the installation is technically non-compliant even if both products are individually listed.

Keep enough product on site to complete the work, and if you need to substitute, find a UL system that lists the product you have available. Document the system change.

Firestop Requirements by Building Type

Not all projects carry the same firestop burden. Understanding where firestopping is most critical helps you plan your approach and allocate resources appropriately.

Healthcare Facilities

Hospitals and medical buildings have some of the most demanding firestop requirements in construction. The occupants cannot self-evacuate, so fire compartmentation is critical. Smoke compartments divide the building into zones where patients can be moved horizontally to a safe area on the same floor.

Every penetration through a smoke barrier or fire barrier requires firestopping, and the documentation requirements are intense. Many healthcare projects require third-party special inspections for firestop, meaning an independent inspector will review every installation against the UL system drawings.

If you work in healthcare construction, consider using a dedicated firestop subcontractor with hospital experience. The cost premium is worth it when you factor in the inspection requirements and the liability exposure.

Multi-Family Residential

Apartments, condominiums, and townhomes require firestopping at party walls (the walls between dwelling units), corridor walls, stairwell enclosures, and floor/ceiling assemblies. The penetration count on a large apartment project can be staggering because every unit has its own plumbing, electrical, and HVAC penetrations through shared fire-rated assemblies.

The challenge on multi-family projects is volume. You might have hundreds of identical penetration conditions repeated across dozens of units. Develop a standard firestop detail for each common condition, train your crews on those specific details, and inspect systematically by unit and floor. Having a repeatable process documented in your project management workflow keeps the work consistent across a long build.

K-12 Schools and Universities

Educational buildings require firestopping at corridor walls, stairwells, mechanical room walls, and assemblies separating different occupancy types (such as the gym or auditorium from classroom wings). The fire-rated walls in schools tend to be straightforward, but the sheer number of trades working simultaneously can lead to coordination problems.

On school projects built during summer breaks, the compressed schedule means firestop work has to happen quickly and correctly the first time. There is no room in the schedule for rework when classes start on a fixed date.

Warehouse and Industrial

Large warehouse buildings may have fewer fire-rated walls, but the ones that exist are typically firewalls with 2- to 4-hour ratings. Penetrations through these high-rated walls require firestop systems with matching ratings, and the products and installation requirements are more demanding than typical 1-hour wall applications.

Industrial facilities may also have penetrations carrying process piping, high-voltage electrical, or other specialized items that require unique firestop solutions. Work closely with the firestop manufacturer’s technical support team for unusual penetration conditions.

Renovations and Adaptive Reuse

Working in existing buildings adds a layer of complexity because you are dealing with conditions you cannot fully see until you open up walls and ceilings. Existing firestop may be deteriorated, missing, or installed with products that are no longer manufactured.

When planning renovation work, budget time and money for firestop assessment early in the project. Open up representative sections of fire-rated walls to evaluate existing conditions before finalizing your firestop approach and estimate. Documenting what you find, including photos and notes in your daily logs, protects you if disputes arise about existing conditions versus new work.

Building a Firestop Quality Program

If firestopping is a recurring part of your work, building a formal quality program around it will save you time and money on every project. It does not have to be complicated. A few standard practices consistently applied are worth more than a thick quality manual sitting in a trailer drawer.

Standard Operating Procedures

Write simple, clear procedures for each common firestop condition your crews encounter. Include photos of correct installations. Laminate them and keep copies in the field. When a new crew member starts, hand them the firestop SOPs as part of their orientation.

Your SOPs should cover:

• How to identify fire-rated assemblies on drawings
• How to look up the correct UL system for a given penetration
• Product storage and handling requirements
• Surface preparation steps
• Installation steps for each common product type
• Self-inspection checklist before calling for formal inspection
• Documentation and photo requirements

Pre-Installation Meetings

Before firestop work begins on a new project, hold a brief meeting with everyone involved. Review the fire-rated assemblies on the drawings, walk the actual conditions in the field, discuss the UL systems that will be used, and confirm material procurement. Fifteen minutes upfront prevents hours of confusion later.

In-Progress Inspections

Do not wait for the formal inspection to check firestop work. Conduct your own in-progress inspections as areas are completed. Check product depth, verify UL systems, and confirm documentation is current. Catching problems early is always cheaper than catching them during the official inspection.

Photo Documentation Best Practices

Photos are your best friend for firestop inspections. Take photos of every penetration before and after firestopping. Include close-ups that show the product label and the depth of application. Include a reference card or marker in the photo that identifies the location and UL system number.

Store photos organized by floor and area in your project files. If you use Projul for photo documentation and daily reporting, you can attach photos directly to specific tasks and locations, making retrieval during inspections quick and painless.

Lessons Learned

After each project, review your firestop inspection results. Which penetration types had the most failures? Were there products that performed poorly or were difficult to install? Did your estimates match actual costs? Feed these observations back into your SOPs and estimating process for the next project.

Keeping a simple log of firestop lessons learned, even just a shared document that your superintendents and foremen can add to, builds institutional knowledge over time. The contractors who consistently pass firestop inspections are the ones who treat every failure as a learning opportunity, not just a nuisance.

Wrapping Up

Firestopping is a life-safety system that deserves the same attention and care as any structural or fire protection component. Getting it right requires understanding the code requirements, selecting the correct products and systems, installing them per the tested configuration, and documenting everything for inspections.

Build firestopping into your project planning from the start, not as an afterthought when the inspector is on site. Assign clear responsibility, track every penetration, and invest in training for your crews.

With proper planning and execution, firestop inspections become a straightforward part of the construction process. Your buildings will be safer, your inspections will go smoother, and your reputation as a contractor who takes life safety seriously will grow.

Tools like Projul can help you track firestop locations, store documentation and photos, and coordinate the scheduling of installations and inspections across your entire project. Start building firestopping into your workflow today.