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Commercial Roofing Services — Installation, Restoration & Fluid-Applied Systems

At Terrapin Construction Group (TCG), commercial roofing is our newest self-performing specialty — and we're approaching it the same way we approach everything: with national scale, trusted partnerships, and an owner-first mindset. From full metal roof systems on warehouses and manufacturing facilities to fluid-applied restoration systems that can save owners up to 80% versus a full roof replacement, TCG delivers roofing solutions that protect your investment for decades.

With projects delivered in 38 states and deep expertise in building envelope systems — including insulated metal panels (IMP) — TCG brings unmatched integration between roof, wall, and structure.

TCG.ai

Commercial Roofing Cost Estimator

Describe your roofing project and get a preliminary cost estimate powered by TCG.ai — the same engine behind our general construction estimator.

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📍 Location📐 Roof SF🏢 Building Use🔄 New vs Restore🏗️ Roof Type📅 Timeline

Analyzing Your Roofing Project

Our AI engine is reviewing roofing material costs, labor rates, and restoration vs. replacement options…

○ Parsing roof parameters
○ Looking up material pricing
○ Analyzing restoration vs. replacement
○ Calculating cost ranges
○ Preparing your estimate
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This estimate is preliminary and generated by AI using historical roofing cost data and regional market indices. All quantities and pricing will be verified by a TCG estimator before any formal proposal. Contact TCG for a formal proposal.

Why Owners Choose TCG for Commercial Roofing

Most commercial roofing contractors only do roofing. TCG is a full-service general contractor and design-build firm that also self-performs roofing — meaning your roof is coordinated with the entire building envelope, MEP systems, and structural design from the start.

Integrated Envelope ExpertiseTCG self-performs IMP installation, PEMB erection, and roofing — your roof, walls, and structure are coordinated under one team for a watertight, energy-efficient building envelope.
Restoration That Saves Up to 80%Through our partnership with FlexRock Coatings, TCG offers fluid-applied reinforcement systems that restore existing roofs at a fraction of the cost of full tear-off and replacement.
New Roof InstallationFull commercial roof installation — TPO, EPDM, PVC, modified bitumen, standing seam metal, and insulated metal panel roof systems — on new construction and reroofing projects.
Nationwide CoverageRoofing services across 38 states with local subcontractor networks and material procurement leverage for competitive pricing.
Owner-First ApproachTCG can serve as your Owner's Rep on roofing projects — auditing existing conditions, evaluating contractor bids, and ensuring warranty compliance.
Energy & Code ComplianceCool roof coatings, high R-value insulation assemblies, and IECC/ASHRAE 90.1 compliance — coordinated with our MEP engineering team for whole-building energy optimization.

FlexRock Coatings — Fluid-Applied Reinforcement Roofing Systems

TCG is proud to partner with FlexRock Coatings — a veteran-owned, Denver-based manufacturer of eco-friendly, high-performance fluid-applied sealant and roofing systems. FlexRock's proprietary FX-100 technology is transforming how owners approach commercial reroofing by eliminating the need for costly and disruptive full tear-off replacements.

Why FlexRock Changes the Game for Commercial Reroofing

Traditional commercial roof replacement means tearing off the existing membrane, hauling it to a landfill, and installing a brand-new system — costing $8–$15+ per square foot and disrupting building operations for weeks. FlexRock's fluid-applied reinforcement system restores and waterproofs the existing roof in place, at a fraction of the cost and timeline.

Up to 80%
Cost Savings vs. Replacement
10x
Thicker Than Traditional Coatings
Zero VOC
Eco-Friendly & Odorless
No Tear-Off
Zero Landfill Waste
Repairs, Not Just CoversUnlike single-component coatings that merely bridge over problem areas, FlexRock's FX-100 chemically bonds to the substrate, fills deep cracks and imperfections, and creates a monolithic waterproof membrane that gets stronger the thicker it's applied.
Bonds to Nearly Any SurfaceFlexRock adheres to metal, asphalt, fiberglass, concrete, wood, TPO, EPDM, modified bitumen, and BUR — making it the ideal solution for aging roofs with mixed materials or multiple repair layers.
No Maximum ThicknessTraditional coatings crack and delaminate when applied too thickly. FlexRock's FX-100 has no maximum mil thickness — it gets stronger with every layer, allowing targeted buildup at ponding areas, flashings, and penetrations.
Plant-Based & Eco-FriendlyMade with plant-based oils, natural minerals, and hemp fiber reinforcement. Zero VOC, virtually no odor during application — making it safe for occupied buildings including medical facilities, hotels, and food production environments.
Rapid Cure, Minimal DisruptionFast-curing formula allows return to service quickly — critical for warehouses, manufacturing plants, and any facility where downtime means lost revenue.
Ideal for Large Commercial RoofsFlexRock is purpose-built for large-scale commercial reroofing — 50,000, 100,000, 200,000+ SF roofs where a full tear-off would cost millions. TCG + FlexRock deliver the restoration at a fraction of the price with minimal operational disruption.

Learn more about FlexRock's commercial roofing products at flexrockcoatings.com.

Our Commercial Roofing Process

Whether it's a new roof installation or a FlexRock fluid-applied restoration, TCG follows a disciplined process to ensure quality, warranty compliance, and long-term performance:

1
Roof Assessment & Core SamplingEvaluate existing roof condition, moisture infiltration, insulation R-value, and structural capacity. Core samples identify membrane layers and substrate condition during preconstruction.
2
System SpecificationRecommend the optimal system — full replacement (TPO, EPDM, PVC, standing seam, IMP) or fluid-applied restoration (FlexRock) — based on condition, budget, and remaining useful life. Coordinated with architectural and structural requirements.
3
Surface PreparationPower washing, repair of existing defects, flashing rehabilitation, and substrate priming to ensure maximum adhesion and warranty compliance.
4
Installation or ApplicationPrecision installation by TCG crews — whether a full membrane system or FlexRock fluid-applied reinforcement with targeted buildup at critical areas.
5
Inspection & WarrantyFinal inspection, adhesion testing, photo documentation, and warranty registration. TCG manages manufacturer warranty coordination and provides ongoing roof maintenance recommendations.

Commercial Roofing Systems We Install

TPO (Thermoplastic Polyolefin)The most widely specified single-ply commercial membrane — energy-efficient, weldable seams, excellent UV and chemical resistance. Ideal for office, retail, and institutional roofs.
EPDM (Rubber Roofing)Proven single-ply synthetic rubber membrane with 30–50 year track record. Superior flexibility in cold climates, easy to repair, cost-effective for large warehouse and industrial roofs.
PVC (Polyvinyl Chloride)Chemical-resistant single-ply membrane ideal for restaurants, food processing, and facilities with grease-laden exhaust. Hot-air welded seams for superior watertight integrity.
Standing Seam MetalArchitectural and structural standing seam metal roof panels — 40–60+ year life expectancy, concealed fasteners, superior wind uplift resistance. Pairs with PEMB structures.
Insulated Metal Panel (IMP) RoofIMP roof systems from PermaTherm, Falk, and Kingspan — combining structure, insulation, and waterproofing in a single panel. Best-in-class thermal performance for cold storage and CEA.
FlexRock Fluid-Applied RestorationFlexRock Coatings liquid-applied reinforcement system — restore your existing roof at up to 80% savings vs. full replacement. Zero VOC, no tear-off, bonds to any substrate.

Industries We Serve

TCG's commercial roofing services cover every building type that needs a high-performance roof:

Warehousing & Cold Storage – Metal, IMP, and restoration systems. Manufacturing & Industrial – Heavy-duty membranes and metal roofs. Hospitality & Restaurant – PVC for grease resistance, TPO for energy savings. Healthcare & Medical – Zero-VOC restoration for occupied facilities. Retail & Strip Centers – Cost-effective reroofing for multi-tenant. Self Storage – Metal roof on PEMB + IMP envelope. Data Centers – Redundant waterproofing for critical facilities. Adaptive Reuse – Restoration over tear-off for historic buildings.

Preferred Nationwide Roofing Partner

TCG partners with leading roofing material manufacturers and our strategic partner FlexRock Coatings to ensure every project benefits from advanced material science, comprehensive warranties, and reliable supply chains. As part of our integrated design-build delivery, roofing is coordinated with MEP systems, building envelope, structural design, and equipment installation — eliminating sequencing conflicts and ensuring a watertight, code-compliant building from day one.

Let's Talk About Your Roofing Project

Whether you need a new commercial roof, a cost-saving FlexRock restoration, or an expert assessment of your existing roof, Terrapin Construction Group has the national reach and building envelope expertise to deliver. Stop spending millions on full tear-offs when a FlexRock restoration could save you up to 80%.

Get My Roofing Quote Now

One Partner. Every Phase. Coast to Coast.

At TCG, we simplify the complex. As your nationwide commercial design-build partner, we offer a seamless, start-to-finish solution that unites architecture, engineering, and construction under one roof — literally. From the foundation to the rooftop, TCG delivers speed, efficiency, and quality that traditional build models can't match.

Design smart. Build better. Go further—with TCG.

Frequently Asked Questions

Still have questions? Reach out anytime or schedule a meeting with us now.

TCG installs TPO, EPDM, PVC, modified bitumen, standing seam metal, insulated metal panel (IMP) roof systems, and FlexRock fluid-applied reinforcement restoration systems. We handle both new construction and reroofing/restoration projects.

Commercial roofing costs range from $4–$8/SF for fluid-applied restoration (FlexRock), $6–$12/SF for TPO/EPDM single-ply, $8–$14/SF for PVC, $10–$18/SF for standing seam metal, and $12–$25/SF for IMP roof panels. Full tear-off and replacement adds $2–$5/SF in demolition and disposal costs that FlexRock restoration eliminates entirely. Use our free AI estimator for project-specific pricing.

FlexRock Coatings is a fluid-applied reinforcement roofing system that restores existing commercial roofs in place — without tear-off, landfill disposal, or full membrane replacement. The product chemically bonds to the existing substrate, fills cracks and defects, and creates a monolithic waterproof membrane. By eliminating tear-off labor, disposal costs, and new membrane material, owners save up to 80% compared to full replacement on large roofs.

FlexRock bonds to virtually any commercial roof substrate — metal, asphalt, TPO, EPDM, PVC, modified bitumen, BUR (built-up roofing), fiberglass, concrete, and wood. This makes it ideal for aging roofs with mixed materials or multiple previous repair layers.

Yes — FlexRock is zero VOC, virtually odorless, and plant-based, making it safe for application on occupied buildings including medical facilities, hotels, retail centers, and food production facilities. There's no need to vacate the building during application.

TPO and EPDM: 20–30 years. PVC: 25–35 years. Standing seam metal: 40–60+ years. IMP roof panels: 30–50 years. FlexRock restoration: extends existing roof life by 15–25+ years depending on substrate condition and application thickness. Proper maintenance programs significantly extend all roof lifespans.

If the existing membrane has structural integrity and less than 25% of the roof area shows active leaks or saturated insulation, restoration with FlexRock is likely the most cost-effective option — saving up to 80% versus replacement. If insulation is widely saturated or the deck is compromised, full replacement may be necessary. TCG provides free roof assessments with core sampling to make a data-driven recommendation. Schedule an assessment.

Yes — TCG is one of the few commercial contractors that self-performs roofing, IMP wall panels, PEMB erection, and commercial flooring under one contract. This eliminates the coordination gaps between roof, wall, and structure that cause leaks and warranty disputes on conventionally bid projects.

Yes — TCG provides commercial roofing services across 38 states with offices in Denver, Houston, Albany, Sheridan, and Charlotte. Whether your project is a 10,000 SF restaurant or a 500,000 SF distribution center, TCG has the scale and expertise to deliver.

Yes — FlexRock is made with plant-based oils, natural minerals, and hemp fiber reinforcement. It's zero VOC and virtually odorless. By restoring roofs in place rather than tearing them off, FlexRock eliminates millions of square feet of roofing waste from landfills annually — making it one of the most sustainable commercial roofing solutions available.