ROMULUS COMMERCIAL ROOF COATING AND REJUVENATION
Protecht Exteriors
Where Technology and Construction meet
Commercial Roof Coating & Rejuvenation in Romulus, Michigan
Silicone · Acrylic Elastomeric · Aluminum · EPDM · TPO · Mod Bit · BUR · Metal · Extend Life 10–20 Years · Save vs. Replacement
Most commercial roofs don't need to be replaced — they need to be restored. Coating is the strategy that gets 10 to 20 more years from a structurally sound commercial roof at 30 to 60 percent of replacement cost, with no tear-off, no waste, and no disruption to building operations. Romulus's commercial coating market spans the massive logistics and warehouse buildings near Detroit Metro Airport to the neighborhood commercial along Goddard and Wayne Roads. Large industrial flat roofs near DTW that have sound EPDM or TPO membranes but weathered, oxidized surfaces are among the best coating candidates in the service territory — the large footprint means the per-square-foot coating cost delivers maximum total dollar savings versus replacement. Large industrial EPDM roofs near DTW are the primary Romulus silicone coating population — at 30,000 to 100,000+ SF, the replacement cost avoided by a successful coating application is measured in hundreds of thousands of dollars. The open-terrain airport wind exposure makes coating adhesion quality critical — Protecht uses spray application on large Romulus industrial roofs for uniform coverage and superior adhesion. The coating conversation starts with an honest assessment — infrared scanning or core cuts to verify the insulation is dry, surface condition evaluation to confirm coating adhesion will hold, and a written candidacy determination before any commitment is made. Our office is 20 minutes southeast via Vreeland Road and I-75.
Coating vs. Replacement — The Decision That Saves Romulus Commercial Property Owners Thousands
Most Aging Commercial Roofs Are Coating Candidates — Not Replacement Candidates — If the Insulation Is Dry and the Deck Is Sound
Commercial roof coatings are liquid-applied elastomeric or polymer systems that are sprayed or rolled onto an existing commercial roof membrane to restore waterproofing, reflect UV, and extend the system's effective service life by 10 to 20 years. They are not paint. They are not caulk. They are engineered roofing systems — typically 20 to 40 mils thick when cured — that form a seamless, flexible membrane over the entire existing roof surface, sealing micro-cracks, reinforcing seams, and creating a new waterproofing layer without removing or replacing the assembly beneath.
The economic case for coating is straightforward: a commercial roof replacement on a Romulus building runs a 30,000 SF warehouse coating runs $45,000 to $100,000 vs. $165,000 to $300,000+ for replacement; neighborhood commercial at 3,000–5,000 SF runs $6,000 to $18,000. A coating system on the same building runs significantly less — $1.50 to $4.50 per square foot installed; large industrial roofs near DTW benefit from economies of scale. If the coating adds 15 years to the roof's life, the cost per year of protection is dramatically lower than a premature replacement. And at the end of the coating's service life, the building can be recoated — at $1 to $2 per square foot — rather than replaced. This renewable cycle is the lowest lifecycle cost strategy available for a sound commercial roof.
The qualification is the critical variable. Coating delivers value only when the underlying assembly is sound: dry insulation, structurally intact deck, membrane that is weathered on the surface but not failed through its body. Coating over wet insulation traps moisture and accelerates deck corrosion. Coating over widespread membrane failure delays a replacement by months while consuming the coating budget. Protecht's assessment protocol — infrared scanning or core cuts to verify insulation dryness, surface inspection to confirm membrane integrity, adhesion testing where appropriate — produces the honest candidacy determination before any coating is specified. Romulus commercial property owners get the right answer for their specific building, not a coating sold on every roof regardless of suitability.
Michigan's Climate Zone 5 creates specific requirements for commercial coating chemistry. The 150°F seasonal temperature swing from winter lows to summer peak surface temperatures demands coatings that maintain elasticity across the full range without cracking or debonding. Silicone's moisture-cured chemistry and sustained flexibility through extreme temperature cycling makes it the preferred specification for most Romulus commercial coating projects. Elastomeric acrylic is the cost-effective alternative for buildings with good drainage where ponding water is not an active condition. Aluminum fibered coatings on BUR are the standard for buildings where reflectivity is secondary to oxidation protection on aged built-up systems.
The Lifecycle Cost Argument — Coating vs. Replacement
A sound commercial roof with weathered surface membrane is a coating candidate — not a replacement candidate. Here's how the numbers work on a typical Romulus commercial building.
- Coating cost: $1.50 to $4.50 per square foot installed; large industrial roofs near DTW benefit from economies of scaleFull coating system installed — surface prep, primer where required, coating application to manufacturer mil thickness specification. All seams reinforced with fabric embed before topcoat.
- Life added: 10–20 years depending on coating type and substrate conditionSilicone coatings on sound EPDM or TPO consistently deliver 15+ years in Michigan conditions. Elastomeric acrylic on mod bit: 10–15 years. Aluminum on BUR: 5–10 years with recoat cycle.
- Energy savings: 10–30% annual cooling cost reduction from white reflective surfaceDark EPDM and oxidized BUR absorb heat. White silicone or white elastomeric acrylic reflects 70–85% of solar radiation — reducing rooftop surface temperatures by 50–80°F and cutting cooling loads measurably in Romulus's summer months.
- Renewable: recoat every 10–15 years at $1–$2/SFAt end of coating life, a new coat bonds to the existing silicone or elastomeric surface — no tear-off, no waste, no replacement cost. The renewable cycle is indefinitely sustainable on a building with sound structure.
- Replacement avoided: significantly higherThe replacement cost avoided by a successful coating application — on a building that genuinely qualifies — is the most compelling commercial roofing ROI calculation available.
Why Assessment Comes Before Coating — Every Time
Coating on the wrong roof is not a solution — it's a deferred cost. Protecht's assessment protocol verifies candidacy before any coating is specified.
- Infrared scan or core cuts — insulation moisture verifiedWet insulation disqualifies a building from coating immediately. Coating over wet insulation traps moisture, accelerates deck corrosion, and produces system failure within 2 to 5 years. Protecht does not coat over wet insulation.
- Surface adhesion assessment — coating must bond to the substrateEPDM, TPO, and BUR each require specific primer and preparation protocols before coating adhesion is reliable. Surface contamination, prior silicone coating, and heavily oxidized surfaces require specific prep. The assessment identifies what prep is needed before the coating scope is written.
- Membrane integrity check — coating restores surface, not structural failureCoating addresses surface oxidation, micro-cracking, and weathering. Widespread membrane failure — splits, holes, delamination across significant area — is a replacement indication, not a coating opportunity.
- Written candidacy determination — coating or replacement stated clearlyThe assessment produces one finding: this building qualifies for coating (with specific system recommendation), or this building needs repair/replacement (with explanation). The property owner receives the written determination before any commitment is made.
Commercial Coating Systems — Choosing the Right Chemistry for Your Romulus Building
Substrate Compatibility · Michigan Climate Performance · Ponding Water Resistance · Lifespan · Energy Savings
Large industrial EPDM roofs near DTW are the primary Romulus silicone coating population — at 30,000 to 100,000+ SF, the replacement cost avoided by a successful coating application is measured in hundreds of thousands of dollars. The open-terrain airport wind exposure makes coating adhesion quality critical — Protecht uses spray application on large Romulus industrial roofs for uniform coverage and superior adhesion. The coating chemistry selection is part of the written scope — not a field decision made on the day of application. Here are the four primary commercial coating systems Protecht applies in Romulus.
Silicone Coating
Best Overall for Michigan · Preferred Spec on Most Romulus ProjectsMoisture-cured silicone forms a seamless, permanently flexible membrane that maintains its elasticity across Michigan's full seasonal temperature range without cracking or becoming brittle. Silicone's critical advantage for Romulus: it does not degrade when ponding water sits on the surface — silicone actually continues to cure in the presence of moisture, making it the only coating chemistry appropriate for flat commercial roofs where perfect drainage cannot always be guaranteed.
⚠ Once silicone is applied, subsequent coats must also be silicone — other chemistries will not adhere to cured silicone. Protecht documents silicone coating on the building record to ensure future recoating is specified correctly.
Elastomeric Acrylic
Cost-Effective · Maximum Reflectivity · Well-Drained RoofsWater-based elastomeric acrylic is the most cost-effective commercial coating option and delivers the highest solar reflectance of any coating type — white elastomeric acrylic reflects 80 to 85% of solar radiation, producing the greatest cooling cost reduction available from a roof coating. For Romulus commercial buildings with positive drainage where ponding water is not an active condition, elastomeric acrylic is a compelling specification: lower material cost, faster application, and maximum energy performance.
⚠ Not appropriate for roofs with active ponding zones. The coating assessment identifies drainage conditions — if ponding is present, silicone is specified instead.
Aluminum Fibered Coating
BUR Specialist · Oxidation Protection · ReflectiveAluminum fibered coating is the standard specification for aged BUR (built-up roofing) systems that are not yet candidates for full silicone or elastomeric coating but require oxidation protection and surface stabilization. The reflective aluminum surface reflects solar heat, slows the BUR's continued oxidation, and seals surface cracks and alligator patterns without the adhesion preparation requirements of silicone or acrylic systems. For Romulus's older BUR commercial buildings, aluminum coating is often the right intermediate step before a future full coating or replacement cycle.
Asphalt bleed-blocker primer required before silicone application over BUR or mod bit — prevents asphalt oils from staining or degrading the silicone topcoat.
Polyurethane Coating
High Traffic · Impact Resistance · Two-Coat SystemPolyurethane coatings — typically aromatic base coat plus aliphatic UV-stable topcoat — deliver the highest abrasion and impact resistance of any commercial coating system. This is the specification for Romulus commercial buildings with significant rooftop foot traffic, rooftop equipment access paths, or rooftop mechanical service activity that would abrade softer coating systems. The two-coat system adds cost over single-coat silicone or acrylic but delivers superior durability in high-traffic environments. Polyurethane coatings are compatible with EPDM, TPO, mod bit, metal, and smooth BUR after appropriate surface preparation.
Metal Roof Coating
Corrugated & Standing Seam · Rust Treatment · Fastener SealingMetal commercial roofs — both standing seam and corrugated — are excellent coating candidates when rust and fastener sealant failure begin to appear. The metal coating process requires rust treatment of all affected areas (rust converter or wire brush removal, then rust-inhibiting primer), sealing of all exposed fastener heads and washers on corrugated panels, reinforcing fabric embed at all seams and laps, and a full silicone or elastomeric acrylic topcoat. A successfully coated metal commercial roof in Romulus gains 10 to 20 years of waterproofing protection and a reflective surface that significantly reduces solar heat gain through the metal panels — particularly relevant for unconditioned or semi-conditioned warehouse and industrial buildings.
How Protecht Applies Commercial Roof Coatings in Romulus
Assessment · Preparation · Reinforcement · Application — Every Step Done Right or the Coating Fails
Assessment & Candidacy
Infrared scan or core cuts to verify insulation is dry. Surface inspection to confirm membrane integrity across all roof planes. Adhesion testing where substrate type or prior coating history requires it. Drainage evaluation — ponding zones determine coating chemistry (silicone vs. acrylic). Written candidacy determination with system recommendation before any commitment is made.
Surface Preparation
Power washing to remove dirt, algae, HVAC effluent, and surface contamination. Primer application per substrate type — EPDM rinseable primer, TPO single-ply primer, asphalt bleed-blocker on mod bit and BUR before silicone, rust-inhibiting primer on metal. All repairs to failed flashings, pipe boots, and membrane splits completed before coating application. The coating is only as good as the surface it bonds to.
Seam Reinforcement
All membrane seams, flashings, penetration perimeters, and HVAC curb bases receive polyester reinforcing fabric embedded in the first coat of coating material before the full topcoat is applied. This fabric reinforcement bridges seam edges and penetration transitions — the highest-stress locations in any coating system — adding tensile strength that prevents coating splitting at these critical zones under Michigan's thermal movement and wind cycling.
Coating Application & QC
Full coating applied by spray or roller to manufacturer-specified mil thickness — typically 20 to 40 mils wet, curing to 15 to 30 mils dry depending on system. Mil thickness is measured and documented during application; under-applied coating fails prematurely. Multiple coats are applied on silicone systems where thickness specification requires more than one pass. Final inspection of all surfaces, seams, and detail areas before the job is closed. Written completion report with photos delivered to property owner or manager.
Is Your Romulus Commercial Roof a Good Coating Candidate?
The Honest Answer Requires Physical Assessment — Not a Satellite Photo or Phone Quote
Commercial roof coating delivers value on the right building at the right time — and the wrong answer on a building that does not qualify wastes the coating budget and delays an inevitable replacement by months rather than years. Protecht's candidacy framework is based on four variables that the assessment determines specifically for each Romulus commercial property.
Membrane age and condition. Coating adds 10 to 20 years to a roof with 5 to 15 years of membrane life remaining — a roof that is aged on the surface but structurally intact. A membrane at true end of service life — splits, holes, or delamination across significant area — needs replacement, not coating. The sweet spot for Romulus commercial coating candidates is typically buildings 15 to 25 years old with surface oxidation and weathering but no structural membrane failure.
Insulation moisture content. This is the single most important variable and the one most commonly skipped by contractors who want to close the coating sale. Wet insulation discovered beneath the membrane during infrared scanning or core cuts immediately disqualifies the building from coating. Coating over wet insulation traps the moisture permanently in the assembly, corrodes steel decking from the inside, eliminates insulation R-value in saturated zones, and produces coating system failure within 2 to 5 years. Protecht does not coat over wet insulation — full stop.
Structural deck condition. Coating does not address deck problems. Corroded, delaminated, or structurally compromised deck sections found during the assessment must be repaired before coating is applied. The assessment identifies deck issues by probing soft spots and checking for bounce in the membrane surface during the physical inspection.
Prior coating history. Prior silicone coating closes future coating to silicone-only options — nothing else will adhere to cured silicone. This is documented in the assessment and factored into the system recommendation. Romulus commercial buildings with unknown coating history receive adhesion testing before the system specification is written.
Good Coating Candidates in Romulus
These building profiles represent strong commercial coating candidates in Romulus:
- EPDM 15–25 years old, dry insulation confirmedSurface oxidation and weathered appearance but structurally sound membrane. The ideal silicone coating substrate in Romulus's commercial inventory.
- TPO chalking and surface thinning, drainage positiveTPO that has weathered and begun to chalk is exactly what elastomeric or silicone coating addresses — surface restoration before the membrane reaches failure.
- Modified bitumen oxidized cap sheet with sound insulationBUR and mod bit that has surface-alligatored but not split or delaminated. Silicone over asphalt bleed-blocker primer adds 10 to 15 years.
- Metal with surface rust beginning at fasteners and seamsCorrugated metal with rust at fastener heads and seam laps — before the rust advances to perforation. Rust treatment, primer, fabric, and silicone stops the progression and seals all penetrations.
- Building where replacement budget is unavailable for 5–10 yearsStrategic coating buys time — a qualified building that cannot be replaced in the current budget cycle gets 10 to 15 more years of weathertight protection at a fraction of replacement cost.
Not Coating Candidates
Protecht will not specify coating on a Romulus commercial building that needs repair or replacement. These findings disqualify:
- Wet insulation found during infrared or core cutsImmediate disqualifier. The scope becomes repair or replacement — not coating.
- Widespread membrane failure — splits, holes, delaminationCoating addresses surface weathering, not structural membrane failure. A roof with 20% or more of its area showing structural membrane failure is a replacement conversation.
- Corroded or structurally compromised deckDeck issues must be repaired before coating. If deck damage is extensive, replacement is often the more cost-effective path.
- Gravel-surfaced BURGravel surface cannot be coated — the loose aggregate prevents adhesion. Gravel must be removed to access the smooth surface beneath, which typically makes replacement more economical.
- Membrane at true end of service lifeA roof where the membrane is failing systemically and will require replacement within 2 to 3 years regardless — coating delays the inevitable while consuming the coating budget.
What Commercial Roof Coating Costs in Romulus — and What the Savings Look Like
$1.50 to $4.50 per square foot installed; large industrial roofs near DTW benefit from economies of scale — a 30,000 SF warehouse coating runs $45,000 to $100,000 vs. $165,000 to $300,000+ for replacement; neighborhood commercial at 3,000–5,000 SF runs $6,000 to $18,000. The cost variables on a Romulus commercial coating project are: coating chemistry (silicone is the most common specification and runs higher than elastomeric acrylic; aluminum is the lowest cost per SF); roof size (larger footprints benefit from application economies of scale — the same prep cost spread over more area reduces effective cost per SF); surface preparation required (heavily oxidized or contaminated substrates require more prep time; mod bit and BUR require bleed-blocker primer before silicone); and reinforcing fabric scope (all seams, flashings, and penetration perimeters receive fabric embed — more complex rooflines with higher seam-to-area ratios cost more to reinforce).
The recoating cycle makes the lifecycle cost case even stronger. At the end of a silicone coating's 15-to-20-year life, the recoat application typically costs $1 to $2 per square foot — bonding a new silicone layer to the existing system. A Romulus commercial building that was coated in 2025 for $3.50/SF, recoated in 2040 for $1.75/SF, and recoated again in 2055 for $1.75/SF has protected the original roof assembly for 30 years at an average of under $2.50/SF — compared to one replacement at $12 to $15/SF. The compounding savings are real and significant over a 30-year horizon.
Timeline for most Romulus commercial coating projects: assessment and prep on day one; primer and reinforcing fabric on day two; coating application on day two or three; most commercial roofs are complete in 2 to 4 days. No tear-off, no disruption to tenants, no structural work, and no waste hauling. The building is fully operational during the coating process with no interior access required.
Commercial Coating Cost Guide — Romulus
All estimates require on-site assessment. Coating is only specified for buildings that pass the moisture and membrane condition assessment. These ranges are representative — not a phone quote.
Serving Romulus Commercial Properties — 20 Minutes Southeast Via Vreeland Road And I-75
Protecht Exteriors serves all commercial properties in Romulus (48174) for roof coating, repair, replacement, and storm damage assessment. Our Flat Rock office is 20 minutes southeast via Vreeland Road and I-75. Commercial coating assessments in Romulus are scheduled within 2 business days of request in most cases.
City of Romulus Building Department permit requirements for liquid-applied coating systems are confirmed before every job. Full commercial liability insurance and workers' compensation coverage — documentation available on request for property management company pre-qualification. Manufacturer coating warranties are available on qualifying installations.
Request Your Commercial Roof Coating Assessment in Romulus
A commercial coating decision starts with an honest assessment — not a satellite photo or a phone quote. Protecht's coating assessment verifies insulation dryness, confirms membrane integrity, assesses adhesion requirements for the specific substrate, and produces a written candidacy determination with system recommendation before any commitment is made. If the building qualifies, you have a specific written estimate. If it does not, you have an honest explanation of what the roof actually needs — and neither outcome costs you anything.
Here's what happens after you submit:
- We contact you within 1 business day to schedule your Romulus coating assessment
- Infrared scan or core cuts to verify insulation moisture content — candidacy confirmed
- Surface condition assessment across all roof planes — membrane integrity confirmed
- Drainage evaluation — ponding zones determine coating chemistry specification
- Adhesion testing where substrate type or prior coating history requires it
- Written candidacy determination: coating candidate with system recommendation, or repair/replacement with explanation
- Written estimate with specific coating system, prep scope, and all flashing reinforcement scope specified
- No commitment required — the written assessment is yours regardless of outcome
What Romulus Property Owners Say About Protecht Exteriors
Real reviews from commercial and residential property owners across Romulus and Wayne County.
Romulus, MI Commercial Roof Coating FAQs
How do I know if my Romulus commercial roof is a coating candidate?
Candidacy depends on four variables: membrane age and surface condition (weathered surface but structurally intact); insulation moisture content confirmed by infrared or core cut (wet insulation immediately disqualifies); structural deck condition; and prior coating history. Protecht's assessment produces a written candidacy determination. The most important variable — and the one most commonly skipped by coating contractors — is insulation moisture. Coating over wet insulation traps moisture and produces system failure within 2 to 5 years. Protecht does not coat over wet insulation.
What's the difference between silicone and elastomeric acrylic coating?
Silicone is the preferred specification for Romulus because it maintains flexibility across Michigan's full seasonal temperature range and withstands ponding water — silicone actually cures in the presence of moisture. Elastomeric acrylic delivers higher solar reflectance and lower material cost but degrades when exposed to standing water, making it appropriate only for buildings with positive drainage. Large industrial EPDM roofs near DTW are the primary Romulus silicone coating population — at 30,000 to 100,000+ SF, the replacement cost avoided by a successful coating application is measured in hundreds of thousands of dollars. The open-terrain airport wind exposure makes coating adhesion quality critical — Protecht uses spray application on large Romulus industrial roofs for uniform coverage and superior adhesion. The written scope specifies which chemistry is correct for the specific building's drainage condition and substrate.
How long does commercial roof coating last in Michigan's climate?
Silicone coatings on qualifying commercial roofs in Romulus typically last 15 to 20 years. Elastomeric acrylic: 10 to 15 years. Aluminum fibered on BUR: 5 to 10 years with scheduled recoat cycle. Michigan's freeze-thaw cycling makes silicone the preferred specification — its sustained flexibility through extreme temperature swings prevents the cracking that less elastic coating systems develop under Michigan's thermal stress. At end of coating life, silicone recoats at $1 to $2/SF indefinitely.
What does commercial roof coating cost vs. replacement in Romulus?
$1.50 to $4.50 per square foot installed; large industrial roofs near DTW benefit from economies of scale — a 30,000 SF warehouse coating runs $45,000 to $100,000 vs. $165,000 to $300,000+ for replacement; neighborhood commercial at 3,000–5,000 SF runs $6,000 to $18,000. Coating typically costs 30 to 60 percent of replacement for a building that qualifies. The lifecycle cost case is even stronger when recoating cycles are factored in: a building coated and recoated over 30 years averages significantly less per year of protection than one replacement cycle over the same period. The qualification is the key — coating only delivers this value on buildings that pass the moisture and membrane condition assessment.
Can coating be applied without disrupting my Romulus tenants or operations?
Yes. Commercial roof coating is entirely a rooftop operation — no interior access required, no structural work, no tear-off, and no waste hauling. Most Romulus commercial coating projects complete in 2 to 4 business days. Silicone coatings have low VOC content and minimal odor during application. Buildings are fully operational throughout the coating process. Protecht coordinates scheduling around business operations where tenant notification is requested.
Your Romulus Commercial Roof May Have 10–20 Years Left. Coating Can Prove It — and Deliver It.
Most aging commercial roofs are coating candidates, not replacement candidates — if the insulation is dry and the membrane is structurally intact. Silicone, elastomeric acrylic, aluminum, polyurethane, and metal coatings all deliver real life extension at 30 to 60 percent of replacement cost. The assessment verifies candidacy honestly, the written scope specifies the correct system for the building, and the work is complete in 2 to 4 days with no disruption to building operations. The assessment is free. The written scope is yours before any commitment.
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