BAM Construction
Waterproofing Contractor
Miami and South Florida
Licensed Florida GC delivering permitted waterproofing systems for below-grade structures, parking decks, balconies, facades, and foundations. HVHZ-compliant NOA assemblies. Federal-grade documentation. One bonded contractor from substrate assessment through permit closeout.
Why Waterproofing Fails in South Florida
Product Selection Is Not the Problem. Permitting Is.
South Florida waterproofing failures rarely trace back to the membrane itself. They trace back to two upstream decisions: wrong product for the exposure classification, and no licensed GC holding the permit for the enclosure scope. In Miami-Dade and Broward, every exterior assembly that is part of the building envelope requires a Notice of Acceptance. Using a non-NOA waterproofing product in HVHZ is a permit rejection. Using the correct product without a structural permit for the substrate repair underneath it means the membrane is installed over unpermitted work.
Waterproofing applicators are not licensed to pull those structural permits. A slab coating sub can apply product. They cannot hold the permit for the balcony slab repair underneath it, manage the special inspector, or produce the engineer-certified closeout documentation that a condo association needs for SB 4D compliance or a developer needs for project delivery. That responsibility falls to the licensed general contractor.
The sequencing problem is expensive. A membrane applied before the structural permit is issued is applied over work that has not been inspected. When the inspector discovers the sequence error, the membrane is removed at the owner's cost, the substrate is re-inspected, and the membrane is reapplied. BAM sequences the permit, the substrate repair, the inspection, and the membrane application in the correct order from day one.
Who Holds the Permit
Waterproofing Applicator vs. BAM (Licensed GC)
Scope of Work
Waterproofing Systems BAM Delivers in South Florida
Every scope item below is permitted, substrate-tested, and inspected by BAM as the licensed GC. No membrane is applied over uninspected substrate.
Parking Deck Traffic Coating
Vehicular and pedestrian traffic coatings for parking decks, ramps, and drive lanes. Polyurethane and epoxy-urethane systems with crack-bridging capability, slip resistance, and drainage slope correction. NOA-listed where HVHZ applies.
Balcony and Plaza Deck Waterproofing
Fluid-applied elastomeric membranes for balcony slabs, pool decks, and plaza decks. System selection based on structural deflection tolerance, chloride exposure, and drainage configuration. Integrated with substrate concrete repair under one structural permit.
Below-Grade and Foundation Waterproofing
Crystalline, cementitious, and sheet-membrane waterproofing for below-grade walls, elevator pits, mechanical rooms, and foundation slabs. Positive-side and negative-side systems selected based on hydrostatic pressure, water table depth, and access conditions.
Facade Coating and Envelope Sealing
Elastomeric facade coatings, window perimeter sealants, and cladding joint systems for exterior walls subject to wind-driven rain. HVHZ-rated systems with Miami-Dade product approval where required. Compatible with EIFS, stucco, and precast substrate types.
Expansion Joint and Transition Systems
Structural expansion joints, control joint sealants, and substrate-to-membrane transition details. Movement range calculated by PE and matched to the joint system. Common point of failure when misspecified. BAM specifies the joint before the membrane is bid.
Permit and Inspection Closeout Package
Substrate test reports (moisture, pH, tensile pull), special inspection logs, permit closeout record, NOA compliance documentation, and photo log organized by zone. Delivered as a bound digital and physical package. Required for condo SB 4D compliance and developer project delivery.
Process
Substrate Assessment Through Permit Closeout
The membrane is the last step, not the first. BAM sequences the permit, the substrate repair, the inspection, and the application in the correct regulatory order.
Substrate Assessment
Moisture content, pH, tensile pull strength, and crack mapping. HVHZ zone confirmed. Drainage slope and ponding evaluated. Assessment report produced before scope is bid.
Product Specification
System selected based on substrate type, exposure classification, movement range, and NOA requirements. PE specifies expansion joint system. No substitution without engineering review.
Permit and Substrate Repair
BAM submits permit to AHJ. Structural substrate repairs are completed and inspected. No membrane is scheduled until the substrate inspection is signed off. Special inspector confirmed.
Membrane Application
Application sequenced per manufacturer and specification. Wet film thickness verified at each lift. Holiday testing performed on critical zones. Application logs maintained throughout.
Final Inspection and Closeout
BAM coordinates final inspection with AHJ. Permit closed. Complete documentation package delivered: test reports, inspection logs, NOA compliance record, photo log, and permit closeout certificate.
Roof, facade, balcony, parking, below-grade, and expansion joint zones each require a different membrane system and permit approach.
The structural permit for the substrate repair must be issued and inspected before the membrane is scheduled. Sequence errors are costly.
Miami-Dade and Broward require Notice of Acceptance for every exterior waterproofing assembly. BAM verifies before bid.
BAM holds one permit package covering substrate repair, membrane application, and inspection documentation as a single integrated scope.
Common Questions
Waterproofing in South Florida
It depends on what is underneath the membrane. A cosmetic coating over intact concrete on a residential project may not require a permit. However, any waterproofing scope that involves structural concrete repair, spall remediation, post-tension work, or changes to the drainage configuration requires a structural or building permit in Miami-Dade and Broward. In HVHZ, the product itself may also require a product approval submission as part of the permit package. BAM reviews the scope at intake and confirms exactly which permit category applies before any work is bid or scheduled.
A waterproofing membrane is designed to resist water infiltration. A traffic coating is a waterproofing membrane with additional properties: wear resistance for vehicular or pedestrian traffic, slip resistance, and higher elongation to bridge active cracks caused by vehicle loading. Parking decks require traffic coatings, not standard membranes, because the structural slab deflects under live load and the coating must move with it without cracking. The product selection depends on the load class (vehicular versus pedestrian), the crack activity in the substrate, and the drainage slope. BAM specifies the system after the substrate assessment, not before.
Moisture trapped between the concrete substrate and the membrane creates vapor pressure as the slab heats under South Florida sun. That pressure pushes upward against the membrane from below, causing blistering, delamination, and adhesion failure. Most membrane systems have a maximum allowable substrate moisture content, typically 4 to 6 percent measured by calcium chloride or relative humidity probe. In South Florida, where slabs are often saturated from ground water or prior drainage failure, substrate moisture frequently exceeds this threshold. BAM tests before application. When moisture is above spec, the substrate is dried, treated, or a moisture-tolerant system is substituted before the membrane is installed.
Yes, and this is where BAM's GC license provides the most value. Waterproofing is rarely a standalone project. Balcony waterproofing follows structural concrete repair and guardrail reinstallation. Parking deck coating follows slab crack injection and drain replacement. Below-grade waterproofing follows excavation and foundation repair. When a single licensed GC holds the permit for all of these scopes, the sequencing, inspection scheduling, and documentation are managed as one integrated project. When the waterproofing applicator is a separate entity from the structural GC, the coordination gap between those two contracts is where delays and deficiencies occur. BAM eliminates that gap by holding both scopes under one license.
Start Here
Request a Scope Review
Describe the zone and the condition. BAM will confirm the permit pathway, HVHZ classification, and system requirements within 48 hours. No product pitch. GC-led assessment from day one.
Open permits: If a prior waterproofing contractor left an open permit on your property, BAM can assess whether the underlying work meets code and coordinate a path to permit closeout through the authority having jurisdiction.
Received
BAM will review your project details and respond within 48 hours.
Miami-Dade, Broward, Palm Beach, and statewide Florida