Advanced Carbon Fiber (FRP) Reinforcement for St. Louis parking structures & commercial concrete.
Restore load capacity without reducing headroom
Aging concrete and corroding rebar compromise the structural integrity of parking garages and commercial facilities. We provide certified installation of Carbon Fiber Reinforced Polymer (CFRP) systems to restore flexural and shear strength with zero loss of clearance height.
Schedule an engineering consultation 👇
Aging infrastructure vs. modern loads
The Challenge: St. Louis parking structures face a "perfect storm" of deterioration. De-icing salts accelerate rebar corrosion, leading to concrete spalling and weakened pre-cast members. Simultaneously, the average vehicle weight has increased significantly with the rise of SUVs and EVs, pushing 1980s-era structures beyond their original design limits.
Traditional retrofits using steel I-beams are often non-viable because they reduce critical overhead clearance height and require extended facility shutdowns.
The Solution: Fortress Carbon Fiber/Kevlar® Grid Systems.
4x Stronger than Steel: High tensile strength restores and exceeds original load ratings.
Zero Clearance Loss: The system is less than ¼ inch thick, preserving critical overhead height for trucks and SUVs.
Corrosion Immune: Unlike steel, carbon fiber will never rust, even when exposed to St. Louis road salt and de-icers.
Carbon fiber reinforcement is only as strong as the bond to the substrate. We adhere to strict installation protocols to ensure the theoretical load calculations match the field reality.
Surface Prep (CSP-3): We grind concrete surfaces to a Concrete Surface Profile (CSP) of 3 to expose the aggregate and ensure maximum adhesion.
Crack Injection: Existing structural cracks are epoxy-injected prior to reinforcement to restore the monolithic nature of the beam.
Epoxy Saturant: We apply a high-modulus epoxy base coat to create a structural bond between the concrete and the fiber.
Grid Installation: The Carbon/Kevlar® grid is embedded into the epoxy, rolled to remove air voids, and anchored if required by the EOR.
Protective Coating: A UV-stable or fire-retardant coating is applied to finish the repair and blend with the surrounding structure.
Execution to engineering specifications
Double-T Beam Repair
We reinforce stems and flanges on pre-cast Double-T beams that are exhibiting shear cracks or flexural weakness. Our application restores the structural capacity of the member without adding significant dead load to the structure.
Concrete Spalling & Rebar Protection
We halt the cycle of rusty rebar. Our team mechanically removes spalled concrete, treats the exposed steel to arrest corrosion, patches the void, and encapsulates the beam in carbon fiber to prevent future decay.
Change-of-Use Reinforcement
Converting a warehouse to lofts, offices, or a gym? We increase the floor load capacity of existing slabs and columns to meet new code requirements, saving you the cost of pouring new concrete footings or columns.
Common Questions from Facility Managers
Rarely. Unlike steel beam retrofits that require heavy machinery and large swing zones, Carbon Fiber installation is localized. We typically block off only the specific bays being repaired. This allows you to maintain revenue and traffic flow in the rest of the facility while we work.
No. The Fortress InvisiBeam® system is less than ¼ inch thick. It bonds flush to the concrete member, preserving your existing clearance. This is critical for preventing liability issues with SUVs, trucks, and emergency vehicles that might hit a traditional steel drop-beam.
Yes. We execute repairs based on the specifications provided by your Engineer of Record. We can also facilitate bond strength testing (puck tests) and provide material data sheets to satisfy your engineering team's requirements for load verification.
It is immune to corrosion. Steel rebar rusts and expands when exposed to de-icing salts, causing spalling. Carbon Fiber/Kevlar® grid is non-corrosive. By encapsulating the beam in epoxy and carbon fiber, we protect the substrate from future chemical intrusion.
Yes, when required by code. While the carbon fiber system itself is heat resistant, we can apply specific intumescent (fire-retardant) coatings over the finished repair to meet hourly fire ratings required for commercial parking structures.
Meet the co-founders
Jet Foundation Repair was founded by brothers Calder and Emmett Miranker to bridge the gap between structural science and exceptional service. Calder Miranker, a Mechanical Engineering graduate from the University of Illinois, oversees the technical rigor of our operations, ensuring every project meets strict engineering standards. Emmett Miranker brings a background in high-growth startups, applying his leadership experience in B2B partnerships and Customer Experience to modernize the construction process. Together, they lead an employee-owned team dedicated to precision and integrity.
Why Structural Engineers Partner with Jet
We understand that on a commercial project, the Engineer of Record (EOR) carries the liability. Our job is to execute your design with precision and transparency.
Certified Installers
We are factory-trained by Fortress Stabilization Systems to install to exact engineering specifications. We adhere strictly to installation protocols to ensure warranty compliance.
Testing & Verification
We work hand-in-hand with your Structural Engineer of Record (EOR). We facilitate bond strength testing and quality control checks to ensure load calculations are met in the field.
Minimal Downtime
Our localized repair process means you don't have to shut down the entire garage. We repair specific beams while the rest of the facility remains operational, protecting your revenue.
Safety & Compliance
We operate with strict safety compliance and maintain a clean, professional job site to ensure the safety of your tenants and the public during the repair process.
Our structural foundation repair services
We offer a full range of foundation crack repair services in St. Louis and nearby communities:
Commercial Structural Services Across Greater St. Louis
From the historic concrete structures of Downtown St. Louis to the high-traffic corporate campuses of Clayton and Chesterfield, Jet Foundation Repair delivers targeted structural reinforcement where it matters most. We understand that St. Louis weather—specifically our freeze-thaw cycles and heavy road salt usage—wreaks havoc on parking structures and commercial concrete.
Key Commercial Service Sectors:
Downtown St. Louis & The Loft District: Specialized reinforcement for historic industrial-to-residential conversions, aging multi-level parking decks, and tight-access urban sites.
Clayton & Central Corridor: Discreet, low-downtime repairs for Class A office buildings, high-rise condominiums, and hotel parking structures where preserving tenant experience is critical.
Chesterfield & West County: Large-scale concrete reinforcement for retail centers, hospital campuses, and corporate headquarters facing high-volume vehicle traffic.
Industrial & Metro East: Load capacity increases for warehouses, manufacturing facilities, and distribution centers requiring heavy machinery floor support.