Beam & Slab Repair in Fort Lauderdale, FL
Beams and slabs carry your building. When they start to crack or sag, the fix can't wait. We restore structural members to spec — minimizing disruption to tenants and operations.
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Structural Repairs That Don't Disrupt Operations
Beam and slab repair in Fort Lauderdale is precision structural work that directly affects the load-carrying capacity of a building's floor and roof systems. Cracked, deflecting, or spalling beams and slabs in South Florida's concrete-frame buildings are the product of rebar corrosion, impact damage, overloading, and decades of moisture exposure — all amplified by the coastal climate. At Planet Construction FL, we restore beams and slabs to structural adequacy using FDOT-approved repair systems and, where required, carbon fiber reinforcement that upgrades capacity beyond the original design.
Structural Members Don't Get Better on Their Own
Beams and slabs are primary structural elements — and when they crack, sag, or spall, the building's load path is compromised. The damage rarely stops on its own. What starts as a hairline crack becomes a deflection issue, then a capacity issue, then an emergency. Operating around damaged structural members puts tenants, occupants, and your insurance status at risk.
Structural Repairs With Engineering-Grade Documentation
We work directly from engineering specifications, using proper formwork, repair mortars, and reinforcement to restore beams and slabs to original capacity. Where possible, we sequence work to keep your operations running. Every step is photographed and documented for the engineer of record, so the repair is fully traceable from start to finish.
Types of Beam & Slab Damage
Concrete beams and slabs in Fort Lauderdale's multi-story buildings deteriorate in predictable patterns. Flexural cracking — cracks perpendicular to the beam's long axis at midspan — occurs as beams deflect under sustained loading and signals structural stress or overload. Diagonal shear cracks at 45-degree angles near beam ends are more serious structural indicators. Slab spalling on the underside signals rebar corrosion directly above the concrete cover, exposing reinforcement and reducing load capacity. Post-tensioned slabs — common in South Florida's residential buildings — present unique failure modes when tendons corrode or break, producing visible cracks and sometimes audible sounds as strands rupture. All of these conditions require professional assessment before repair begins.
Structural Assessment Before Repair
Beam and slab repair without proper structural assessment risks an inadequate or inappropriate repair — particularly in post-tensioned systems where standard chipping can damage tendons still under load. Planet Construction FL begins every beam or slab repair project with a thorough assessment: documenting crack patterns, measuring deflection where accessible, reviewing available structural drawings, and determining whether the damage results from a past event or an ongoing condition. Where the structural condition warrants engineering review — which covers most structural beam and slab conditions — we coordinate with licensed structural engineers before committing to a repair approach. The assessment protects both the building and our work.
Our Beam & Slab Repair Methods
Beam and slab repair methods are selected based on damage type and cause. Spalling and rebar corrosion on beam and slab soffits is addressed with full concrete removal to the damage boundary, rebar treatment, and FDOT-approved overhead mortar application. Structural cracks in beams and slabs receive epoxy injection — bonding the crack faces and restoring structural continuity. Where beams or slabs have experienced section loss or require capacity upgrades, carbon fiber reinforced polymer (CFRP) laminates are bonded to the tension face, providing significant flexural strength enhancement without added weight or disruption to the floor above. Each method is selected based on engineering specifications and the specific damage condition — not a one-size-fits-all approach.
Carbon Fiber Beam & Slab Strengthening
CFRP laminate strengthening has become the preferred method for increasing beam and slab flexural capacity in occupied buildings where conventional strengthening would require major demolition and disruption. Laminates are bonded to the tension face of the beam or slab with structural epoxy — thin, lightweight, and completely non-corrosive. They add significant load capacity without altering the beam's height or profile. For Fort Lauderdale building owners facing 40-year recertification deficiencies, occupancy increases, or conversion projects that add load to existing beams, CFRP strengthening delivers a code-compliant capacity increase with minimal disruption and a competitive project cost compared to conventional strengthening alternatives.
Frequently Asked Questions
How do I know if a cracked beam is dangerous?
Not all beam cracks are structural emergencies, but all warrant evaluation. Hairline flexural cracks at midspan under long-term load are common in older concrete beams. Diagonal cracks near beam ends, cracks wider than 1/16 inch, cracks accompanied by visible deflection or sagging, and any crack in a post-tensioned beam should be assessed by a licensed structural professional immediately — these are not situations to observe and wait on.
Can beam and slab repairs be done with the floor above in use?
In most cases, yes. Overhead soffit repairs are performed from below using scaffolding or aerial lift equipment. The floor above typically remains in use throughout. For post-tensioned slab repairs, the structural engineer may specify load restrictions during specific repair phases. All requirements are communicated clearly before work begins so property managers can plan appropriately.
Is a structural engineer required for beam and slab repair?
For repairs to structural beams and primary floor slabs in multi-story buildings, engineering oversight is strongly recommended and often required by the building department. We work alongside structural engineers throughout the assessment and repair process. For straightforward soffit spall repair in non-critical locations, engineering may not be required — we assess each project's requirements individually.
What is the service life of a repaired beam or slab?
A properly repaired and protected concrete beam or slab — with rebar corrosion treated, mortar applied to specification, and a protective coating system installed — can be expected to perform for the remaining service life of the building. The key factors are eliminating the moisture source that drove the original deterioration and applying appropriate surface protection to prevent re-exposure of the repaired zone.
