The Problem: Hidden Leaks and Rust
The facility managers at the Chaim building contacted us after noticing persistent moisture issues on the upper floors of their office building. Water stains were appearing on ceiling tiles, and there was a noticeable musty odor in the mechanical rooms. Upon our initial inspection, the culprit was immediately obvious. The existing chimney chase, which houses the flue pipes for the building’s heating and hot water systems, had failed.
The original structure was built using standard galvanized steel which had succumbed to the harsh Florida elements. The top cover had rusted through, allowing rainwater to pour directly into the chase cavity. This water was not just damaging the drywall; it was running down the exterior of the hot flue pipes which caused rapid corrosion to the venting system itself. In a humid environment like University Park, compromised flashing and rusted covers are the leading cause of “mystery leaks” in commercial properties.
What is a Chimney Chase and Why Does it Matter?
Before we detail the installation process, it is important to clarify what a chimney chase actually does. In commercial architecture, the chase is the box-like structure that extends above the roofline. It is not just aesthetic. It serves three critical functions:
-
Protection: It shields the sensitive flue pipes from wind, rain, and debris.
-
Insulation: It maintains a thermal barrier around the flue, keeping exhaust gases hot so they rise effectively (drafting) rather than cooling and condensing back into hazardous liquids.
-
Safety: It provides a fire-rated separation between hot exhaust pipes and the building materials.
When a chase fails, it jeopardizes the safety of the entire building. The Chaim Project required a complete removal of the old structure and a brand-new custom chase installation designed to last for decades.
The Solution: Custom Fabrication and Precision Install
Our team at Ducts All Done approached this project with a focus on longevity. Standard off-the-shelf parts rarely fit commercial applications correctly, so we opted for a custom fabrication approach.
Step 1: Site Preparation and Safety
Working on a commercial roof in University Park requires strict adherence to safety protocols. We set up a safety perimeter to protect our technicians and the HVAC units nearby. We carefully demolished the rusted chase, ensuring that no debris fell into the flue openings. Debris blockage in a flue is a major fire hazard, so we capped the pipes temporarily during the teardown phase.
Step 2: Framing Reinforcement
Once the metal skin was removed, we inspected the wooden structural framing underneath. As expected with long-term leaks, some of the framing was rotted. We replaced these sections with pressure-treated lumber to ensure a solid anchor point. We then wrapped the framing in a high-grade moisture barrier. This acts as a secondary line of defense, ensuring that even if the outer metal is damaged in a storm, the internal structure remains dry.
Step 3: Installing the Custom Chase Cover
The most critical component of this installation was the chase cover, the metal “lid” of the box. We fabricated this piece using heavy-gauge stainless steel. Unlike the previous galvanized steel, stainless steel offers superior resistance to oxidation.
We engineered the cover with a cross-break design. This involves creasing the metal to create a slight pyramid shape, which forces water to shed off the sides immediately rather than pooling in the center. Standing water is the enemy of any roof structure, and this simple geometric adjustment adds years to the lifespan of the installation.
Technical Details: Flashing and Waterproofing
The connection point where the chase meets the roof is called the flashing. This is where most installations fail if done by inexperienced contractors. For the Chaim Project, we utilized a commercial-grade counter-flashing technique. We integrated the metal flashing deeply with the existing roof membrane, sealing it with industrial-grade polyurethane sealant.
We also installed a “storm collar” around the flue pipe where it exits the chase cover. This collar acts as an umbrella for the pipe itself, preventing water from running down the side of the pipe and into the building. Proper sealing at these penetration points is non-negotiable for a watertight result.
For more technical information on moisture control in buildings, you can review the guidelines provided by the U.S. Department of Energy.
The Importance of Local Expertise in University Park
Operating in University Park presents specific environmental challenges. The high humidity, frequent afternoon thunderstorms, and salt air from the nearby coast accelerate corrosion. Materials that work in drier climates often fail here within a few years.
At Ducts All Done, we select materials specifically for this environment. For the Chaim Project, we used fasteners that are coated to resist galvanic corrosion, a chemical reaction that happens when dissimilar metals touch in the presence of salt water. This attention to detail ensures that the screws don’t rust out before the metal panels do.
Results of the Chaim Project
The transformation was immediate. The new chimney chase not only stopped the leaks instantly but also improved the aesthetic of the building’s exterior. The facility managers at the Chaim Commercial Complex can now operate with the confidence that their mechanical systems are protected. The new chase provides better insulation, which helps the water heaters operate more efficiently by maintaining proper draft pressure.
This project highlights why Ducts All Done is the trusted partner for commercial entities. We don’t just patch problems, we engineer solutions that improve the building’s performance.
Preventative Maintenance: What You Should Know
If you manage a commercial property, do not wait for a leak to appear on your ceiling. We recommend a rooftop inspection at least once a year, preferably before the hurricane season. Look for rust streaks on the side of your chimney chase, pooling water on the top cover, or loose siding. These are early warning signs that the system is failing.
Reliable resources like the Chimney Safety Institute of America (CSIA) offer excellent consumer guides on the importance of maintaining venting systems for safety and efficiency.
Trusted Commercial Services in University Park
Whether you have a single-story retail location or a large office complex like the Chaim building, your ventilation and roofing penetrations need expert care. A compromised chimney chase is more than a nuisance; it is a liability. Ducts All Done brings years of experience, specialized fabrication tools, and a commitment to excellence to every job site.
Don’t let a rusted chain damage your property. If you need a consultation on a commercial chimney chase installation or require an inspection of your current system in University Park, our team is ready to assist. We provide detailed assessments and transparent pricing to help you make the best decision for your infrastructure. Contact us today to schedule your commercial roof and duct inspection.
