GAF Membrane System Installation for Jacksonville Commercial Roofs

GAF Membrane Systems From Floridian Roofing & Solar, Jacksonville’s Only Certified Installer, Delivers Full Roof Protection, Without a Full Replacement.

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Jacksonville’s Only GAF-Certified Membrane System Installer

A failing commercial roof usually means one expensive choice: a full tear-off and replacement running into six figures. The GAF membrane system restores your existing roof to a fully protected, code-compliant condition instead, sealing it as one continuous, monolithic barrier with no seams to fail. Floridian Roofing & Solar is Jacksonville’s only GAF CoatingsPro+™ Liquid Applied Roofing Contractor, meaning that restoration is installed to GAF’s exact specification and backed by a manufacturer warranty other contractors cannot offer.

Built for Commercial Roofs With Real Operational Demands

Hotels, medical facilities, and retail centers rely on this system when HVAC-heavy roofs, ponding-prone zones, or fully occupied buildings rule out a disruptive tear-off. Floridian Roofing & Solar reinforces those high-risk areas with GAF silicone coating, so every zone of your roof gets protection matched to its actual exposure.

A Roof System That Pays for Itself

A GAF membrane system restores your roof at a fraction of full replacement cost, with a reflective, monolithic surface that resists Florida’s UV exposure and wind-driven rain with no lap seams to fail. That means a longer-lasting, fully warrantied roof without the price tag of starting over.

Stop Guessing About What’s Happening Under Your Roof

A membrane that looks fine from the parking lot can already be letting water into the deck below, and by the time a leak shows up inside, the damage has usually been spreading for months. Floridian Roofing & Solar’s GAF-certified team can inspect your roof and tell you exactly where you stand, so contact us today to schedule your evaluation.

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One Certified Contractor, Full Roof Coverage

Floridian Roofing & Solar’s GAF certification covers full membrane installation, silicone reinforcement for HVAC zones, and warranty programs up to 25 years, giving hotels, medical facilities, and retail centers one contractor for a full restoration, without the open flames, equipment, or downtime a replacement requires. It’s part of the same ongoing roof maintenance approach that keeps a restored roof performing for the full length of its warranty.

Case Study: Casa Monica Resort & Spa

  • Problem

    Casa Monica Resort & Spa, a historic boutique hotel in St. Augustine, Florida, needed its coastal roof restored against intense UV exposure, salt air, and wind-driven rain, but as an operating luxury property, it could not close rooms or run loud, dust-generating tear-off equipment during construction.

  • Solution

    Floridian Roofing & Solar inspected the existing roof, confirmed a single membrane layer met Florida Building Code for a second system, and worked with GAF Technical Representatives to install the liquid-applied, fabric-reinforced GAF HydroStop membrane system with silicone reinforcement around HVAC zones, all without a single tear-off day.

  • Results

    The hotel received a fully restored, monolithic roof system compliant with Florida Product Approval FL20663-R25 under System R-64 for wind uplift and structural integrity, backed by a 20-year GAF warranty, with zero disruption to guests or hotel operations throughout installation, plus lower cooling costs from the membrane’s reflective surface.

Frequently Asked Questions About GAF Membrane System Services

A GAF membrane system is a liquid-applied, fabric-reinforced roofing system that Florida Building Code recognizes as a full roof layer, installed under a permit. A roof coating is a maintenance product applied to extend the life of an existing roof and does not count as a new roof layer under state code. Property owners who already have two roof layers, the maximum Florida allows, typically use a coating instead. Floridian Roofing & Solar can walk you through which option your roof actually qualifies for.

Because a GAF membrane system restores your existing roof instead of removing it, it typically costs significantly less than a full tear-off and replacement. You avoid the labor, disposal, and structural rebuild costs a full replacement requires, while still getting a manufacturer-backed warranty on the finished system. Floridian Roofing & Solar can provide a specific cost comparison for your building during a free inspection.

In most cases, a GAF membrane system can be installed directly over a single existing roof layer without tearing it off, as long as Florida Building Code’s two-layer limit allows it. Floridian Roofing & Solar inspects the existing roof structure first to confirm eligibility before recommending this approach, the same evaluation process that determined a tear-off was unnecessary on the Casa Monica project.

Standard GAF HydroStop membrane systems carry a 20-year manufacturer warranty. As a GAF CoatingsPro+™ Liquid Applied Roofing Contractor, Floridian Roofing & Solar can also offer qualifying commercial projects a 25-year warranty with annual manufacturer inspections included. Which warranty tier applies depends on the specific system and application, and we will confirm that during your inspection.

Floridian Roofing & Solar is Jacksonville’s only GAF CoatingsPro+™ Liquid Applied Roofing Contractor and a GAF-certified commercial partner across North Florida. GAF trains and audits our crews directly, which is what allows us to offer extended warranty coverage that uncertified installers cannot provide. Contact our commercial roofing team to schedule an inspection and see your certification options firsthand.

Find Out If Your Roof Qualifies for a GAF Liquid Applied Roofing Membrane

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