A Sprinkler System Full of Soot

The call came in on a Saturday morning while Amanda and I were getting ready to leave for a peer group meeting.

One of our long-time property management contacts had an emergency at an Uptown Charlotte apartment building. An ice maker inside one of the units had caught fire overnight. 

The sprinkler system activated and stopped the fire, but by the time everything was shut down, water and soot had spread well beyond the original unit. Amanda left for the airport early so she could stop by the property before her flight and make sure the job was stabilized and properly handed off before we left town.

Our mitigation manager at the time handled the initial paperwork and coordination while the field crews began extraction, stabilization, and emergency cleaning. Amanda and I walked the job ourselves the following Wednesday after returning to Charlotte. By then, it was obvious this was going to become a much more complicated project than a normal sprinkler loss. 

This was not a typical apartment building. The property was a converted factory, the kind of adaptive reuse project that gives parts of Uptown Charlotte their character but also creates restoration challenges you do not run into every day. Older industrial buildings come with unusual floor assemblies, hidden voids, layers of renovation work, and construction methods that completely change how a mitigation plan has to be approached.

The damage ultimately spread across:

• 3 affected floors
• 5 apartment units
• Hallways on 2 separate floors
• A shared washer and dryer room
• A main floor bathroom
• Multiple utility closet areas

Water and soot had traveled far beyond the original fire area by the time the sprinkler system was shut down. The real problem, though, was underneath the flooring.

The Gypcrete Problem

As part of the factory conversion years earlier, the floors had been leveled using gypcrete, a lightweight gypsum-based concrete commonly used in multi-family construction for sound control and leveling. In this building, the gypcrete was extremely deep. In some areas, nearly two feet thick. Underneath it sat a vapor barrier. That combination completely changed the drying plan.

Normally, our first goal is drying materials in place whenever conditions allow. Patrick, who led the technical side of the project for our team, holds Applied Structural Drying certification along with two additional IICRC master-level certifications that make him a Triple Master technician. Saving materials whenever possible is usually better for the property owner, the insurance carrier, and the overall project timeline. The building itself was still very restorable. Most of the walls, ceilings, cabinetry, and structural materials throughout the affected areas were successfully cleaned and restored rather than demolished.

Only a limited number of walls required removal, primarily in the source unit.

The real issue was the flooring assembly. Moisture readings confirmed very quickly that water had migrated deep into the gypcrete underneath the flooring, and the vapor barrier below it was trapping that moisture with nowhere for it to escape. That portion of the assembly could not be dried in place. The gypcrete had to be removed. So, we manually demoed the affected gypcrete throughout the impacted areas. That is slow, heavy work. Gypcrete does not come out in clean sections. It has to be broken apart and removed piece by piece, and because adjacent units in the building were still occupied, containment became critical from the beginning.

The demolition process also created silica exposure concerns, so our crews operated under full containment and respiratory protection protocols throughout the demo phase. Because of the unusual floor assembly and the complexity of the moisture conditions, one of Restoration 1’s senior technical consultants also reviewed the project with our team during the mitigation process. Large losses involving deep gypcrete, vapor barriers, soot contamination, occupied units, and multi-floor water migration are not everyday restoration projects.

Water Damage, Fire Damage, and Real-World Complications

The complexity of this loss was not just the water damage. When the sprinkler system activated, it carried soot throughout multiple floors of the building. Soot is acidic and starts damaging surfaces quickly if it is not cleaned correctly. While part of our team handled extraction, demolition, containment, and drying, other crews were simultaneously cleaning soot from walls, ceilings, hallways, cabinetry, and common areas throughout the property. We were essentially running two restoration projects at the same time. But another challenge developed quickly. 

Several of the affected tenants did not carry renter’s insurance, which meant contents removal became much slower than it normally would have been. Some residents needed time to sort through damaged belongings themselves before units could be fully released for restoration work. In the meantime, we stabilized the building, extracted water, cleaned soot from common areas, and handled issues like spoiled food left inside refrigerators while waiting for individual units to be cleared for work.

The apartments were ultimately released to us one by one as tenants finished removing contents.

That changed the workflow of the project completely. Instead of treating the building as one large open work area, the restoration process had to move unit by unit while coordination continued between residents, property management, insurance representatives, containment crews, and mitigation teams. The property manager needed units restored quickly. Residents had been displaced. The insurance carrier needed clear documentation and regular updates throughout the process. Our team coordinated directly with the adjuster while documenting moisture readings, containment, demolition, drying progress, and soot cleaning throughout the project.

What Jobs Like This Actually Require

Large multi-family losses are coordination problems just as much as restoration problems. Anybody can unload air movers into a building. The difficult part is understanding the materials, sequencing the work correctly, building proper containment, protecting occupants, documenting the scope properly, and managing the project from the initial emergency call all the way through final clearance.

This project lasted roughly three to four weeks from the initial response through final restoration. A large part of that timeline involved coordinating around tenant access and contents removal while keeping the building stabilized and safe throughout the process. Honestly, for the amount of cleaning, drying, containment, selective demolition, and coordination involved, it was the right amount of time to do the project correctly. 

Restoration 1 of Greater Charlotte provides 24/7 emergency water damage and fire damage restoration throughout Charlotte and surrounding communities. 

If your property experiences water damage, fire damage, or a complex commercial loss, our team is available at any time of day or night.

Restoration 1 of Greater Charlotte
(704) 766-8182