Weston Condominium Balcony Spall Repair & Waterproofing
Turnkey structural remediation of 84 cantilevered concrete balconies and elevated walkways for a premier 4-story condominium community in Weston, resolving critical Phase 1 structural milestone deficiencies and passing 100% of municipal building inspections under Florida SB 4-D.
The Structural Challenge: Critical Delamination & Expiring Milestone Deadline
Facing a mandatory Florida SB 4-D Phase 2 compliance deadline, the HOA board discovered extensive structural delamination across the building's exterior cantilevered slabs.
Decades of sub-tropical humidity, ponding rainwater, and hairline concrete shrinkage fractures had allowed moisture and atmospheric carbonation to permeate the slab matrix. Corroding internal steel rebar had begun rust-jacking, fracturing concrete slab edges and compromising post-tension anchor zones.
Three previous paint patch jobs had masked the underlying corrosion. The association faced mounting municipal non-compliance penalties and imminent insurance cancellation unless a state-certified general contractor executed engineered structural repairs to engineer-of-record specifications.
The Engineering Execution: ICRI-Compliant Restoration Protocol
Directly supervised by qualifying contractor John Kraja, Planet Construction deployed specialized in-house structural concrete craftsmen using ICRI-certified restoration techniques.
Forensic Acoustic Sounding & Sound Mapping
Complete chain-drag sounding and impulse echo testing mapped all hidden subsurface voids and delaminations across all 84 balconies, preventing unaddressed internal voids.
ICRI Guideline 210.3 Acoustic SurveyPrecision Hydro-Demolition & 360-Degree Undercutting
Concrete was chipped back past corroded rebar with a minimum 3/4-inch circumferential clearance, eliminating fractured substrate while preserving uncompromised parent concrete.
ICRI 310.1R Structural Concrete PrepZinc Galvanic Anodes & Steel Re-Passivation
Exposed rebar was blasted to bare metal (SSPC-SP 10), coated with zinc-rich anti-corrosion primer, and fitted with sacrificial zinc anodes to permanently stop the electrochemical halo effect.
NACE SP0290 • ASTM A775 Cathodic StandardPolymer-Modified Structural Mortar Application
Application of low-shrinkage, silica fume-enhanced, polymer-modified structural repair mortar (4,500+ PSI compressive strength) wet-cured to match the existing slab modulus.
ASTM C928 Rapid-Hardening Class R3Core-Drilled Railing Embeds & PMMA Waterproof Membrane
New aluminum railing embeds were core-drilled and set with non-shrink structural grout sleeves, followed by a multi-tier elastomeric PMMA traffic coating broadcasted with non-skid aggregate.
ASTM C957 Multi-Layer • High-Voltage Spark TestedTechnical Specifications & Municipal Verification Log
Every material and method deployed adhered strictly to Florida Building Code, manufacturer warranties, and signed engineering calculations.
| Scope Parameter | Engineered Specification | Governing Standard | Verification Method |
|---|---|---|---|
| Substrate Removal Standard | Acoustic chain-drag sounding; pneumatic chipping to 3/4-inch steel clearance | ICRI 310.1R Protocol |
City & Engineer Sounding Logs |
| Cathodic Protection | Galvanic zinc sacrificial anodes embedded at 24-inch grid intervals | NACE SP0290 / ASTM A775 |
Mill Test & Placement Inspection |
| Structural Repair Mortar | Sika MonoTop polymer-modified fiber-reinforced structural mortar (4,500 PSI) | ASTM C928 Class R3 |
Third-Party 28-Day Break Tests |
| Railing Post Anchoring | Core-drilled sleeves with BASF MasterFlow non-shrink high-strength grout | FBC HVHZ Balcony Loads |
Calibrated Tensile Pull-Test |
| Waterproofing Membrane | Kemperol / PMMA liquid resin fleece-reinforced monolithic traffic deck system | ASTM C957 • Miami-Dade NOA |
ASTM D5162 High-Voltage Spark Test |
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Request Project Estimate for Your Property
Contact our engineering and estimating department to review architectural plans, schedule an on-site structural takeoff, or coordinate municipal permit filings directly with qualifying contractor John Kraja.
Central Office: (754) 301-6747
Official Office Email: office@planetconstructionservices.com
Direct Dispatch: 1500 NE 51st St, Fort Lauderdale, FL 33334
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