Liquid Applied Membrane Roofing in Dallas-Fort Worth

Liquid applied membrane (LAM) roofing is a fluid-applied coating system that creates a seamless, waterproof membrane directly on your existing or new roof surface. Its primary value is restoration: LAM can extend the life of an existing commercial roof by 10-20 years without the cost and disruption of a full tear-off. T Rock Roofing & Contracting installs liquid applied membrane systems on commercial buildings across the Dallas-Fort Worth Metroplex. Call 469-931-9867 for a free consultation and site assessment.

What is Liquid Applied Membrane Roofing?

Liquid applied membrane roofing is a fluid coating that cures into a seamless, elastomeric waterproof membrane. Unlike sheet-based roofing systems that create seams at every panel junction, LAM has no seams to fail. It bonds directly to your existing roof surface (or a new substrate), creating a monolithic membrane that flexes with your building.

LAM comes in several chemistries: silicone, acrylic, urethane, and specialty polymer systems. Each has specific strengths for different applications. The right choice depends on your existing roof condition, budget, and long-term goals.

When Liquid Applied Membrane is the Right Choice

LAM isn’t the right system for every commercial roof, but for certain applications, it’s the ideal solution:

  • Existing roof restoration: extend the life of aging TPO, EPDM, PVC, modified bitumen, or BUR roofs by 10-20 years without full tear-off. The primary and highest-value use of LAM.
  • Complex roof geometries: roofs with unusual shapes, curves, or complex penetrations where sheet-based roofing struggles.
  • Penetration-heavy roofs: buildings with extensive HVAC equipment, plumbing vents, or rooftop mechanical create many potential leak points. LAM’s seamless coating eliminates these vulnerabilities.
  • Buildings with occupancy restrictions: LAM installation typically causes less disruption than full re-roofing.
  • Cool roof upgrades: reflective white LAM coatings can dramatically reduce cooling costs on existing dark roofs.
  • Fire-restricted environments: no open flames or hot asphalt required, safer for occupied buildings.
  • Historical or specialty buildings: LAM preserves existing roof appearance while adding waterproof performance.

When your existing roof is structurally sound but showing surface wear, LAM restoration is typically 30-50% less expensive than full tear-off replacement.

Types of Liquid Applied Membrane Systems We Install

T Rock installs the primary LAM chemistries used in commercial roofing:

  • Silicone LAM: superior UV resistance and permanent flexibility. Best for restoration of existing single-ply roofs. Long-term warranties available (10-25 years).
  • Acrylic LAM: water-based, environmentally friendly, and excellent reflectivity for cool roof applications. Best for restoration of existing modified bitumen and BUR roofs in mild climates.
  • Urethane LAM: exceptional durability and abrasion resistance. Best for roofs with foot traffic, mechanical loads, or industrial exposure.
  • Fluid-applied polymer systems: specialty coatings for specific applications including chemical exposure, high-temperature environments, or unique substrate requirements.

During your consultation, we evaluate your existing roof condition and building requirements to recommend the appropriate LAM chemistry.

Liquid Applied Membrane Manufacturers We Install

T Rock installs liquid applied membrane systems from major manufacturers:

  • GAF: comprehensive LAM system offerings including silicone and acrylic restoration systems.
  • Firestone Building Products: silicone and urethane LAM systems with strong warranty coverage.
  • Karnak: extensive LAM product line for commercial roof restoration.
  • Henry Company: specialty LAM coatings for various commercial applications.
  • Progressive Materials: silicone restoration systems with long-term warranties.
  • Johns Manville: LAM products designed to complement existing modified bitumen and BUR systems.

Manufacturer choice affects warranty length, insurance value, and available system components. We can recommend the best manufacturer for your specific project.

What Liquid Applied Membrane Installation Looks Like

LAM installation on an existing roof follows a straightforward process:

  1. Inspection and roof condition assessment: we evaluate the existing roof for suitability, identifying areas needing repair before coating
  2. Surface preparation: cleaning, power washing, and any needed repair to create a sound substrate
  3. Primer application: if required by the LAM system and substrate type
  4. Reinforcement at critical areas: seams, penetrations, and flashing details receive fabric-reinforced treatment for extra protection
  5. First coat application: primary LAM coat sprayed or rolled onto the surface
  6. Second coat application: additional coat for full mil thickness and warranty coverage
  7. Final inspection and warranty registration

Installation typically takes 3-7 days for standard commercial buildings, causing minimal disruption to occupancy.

Liquid Applied Membrane Cost and Lifespan

LAM is one of the most cost-effective commercial roofing solutions when used appropriately. Realistic DFW expectations:

  • Installation cost: typically 30-50% less than full commercial roof replacement. Cost depends on existing roof condition, size, chosen chemistry, and reinforcement needs.
  • Lifespan added: 10-20 additional years of service life on properly restored existing roofs.
  • Warranty options: 10-25 years depending on manufacturer, chemistry, and mil thickness applied.
  • Recoating cycle: LAM systems can typically be recoated at end of warranty for continued life extension.

For property owners weighing full replacement against restoration, LAM restoration frequently offers dramatically better return on investment when the existing roof is structurally sound.

Warranty and RCAT-Licensed Installation

LAM performance depends entirely on installation quality. Poor surface preparation, inadequate mil thickness, or improper reinforcement causes premature failure. T Rock is RCAT licensed (#03-0619) and trained on installation methods from all major LAM manufacturers.

All T Rock LAM installations come with:

  • Manufacturer material and system warranty: 10-25 years depending on manufacturer, chemistry, and mil thickness
  • T Rock labor and workmanship warranty: 10 years on commercial LAM installations
  • Manufacturer certifications: on premium installations we can provide manufacturer-backed system warranties (NDL or edge-to-edge)
  • Full documentation: mil thickness verification, photo records, warranty registration, and project records for insurance and property files

Explore Commercial Roofing Options

LAM is one of several commercial roofing systems we install. Related pages:

Serving Commercial Properties Across Dallas-Fort Worth

T Rock installs liquid applied membrane roofing across the entire DFW Metroplex, from Burleson to Sherman and from Weatherford to Forney. Our coverage includes Dallas, Fort Worth, Plano, Arlington, McKinney, Flower Mound, Lewisville, Keller, Sherman, Mansfield, Argyle, Northlake, Double Oak, Honey Grove, Lantana, and surrounding communities.

Ready to explore liquid applied membrane for your commercial roof?

Call 469-931-9867 or schedule your free consultation online. We can be on site within 24 hours to inspect your existing roof, evaluate whether LAM restoration is right for your building, and provide a written scope and firm pricing. One T Rock project manager handles your project from consultation through warranty registration.