Spray Foam Roofing in Nebraska - Seal Leaks, Cut Energy Loss, Skip the Tear-Off

One application stops leaks and improves insulation - without tearing off what’s already there.

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30+ Years in Business

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Employee Owned

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4 Nebraska Locations

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7,843 Projects Complete

Your Flat Roof Is Probably Costing You Twice

Flat and low-slope roofs leak. They also let energy out. Most commercial building owners address one problem at a time - a patch here, more insulation there - and never solve the root cause. Spray foam addresses both at once. It seals the roof surface into a continuous, seamless membrane and adds meaningful R-value in a single application. It’s not a temporary fix. Done correctly, it extends the life of your roof by 20 years or more.

The contractor risk is real, though. Some will recommend a full membrane tear-off when spray foam could extend the existing roof’s life by two decades at significantly lower cost. That recommendation costs you money you didn’t need to spend. The other risk: contractors who apply foam without proper equipment, training, or quality control. Poorly mixed, improperly applied foam blisters, delaminate, and fails within a few years. Spray foam application is a specialty. It requires specific equipment, controlled application conditions, and technicians who do it regularly. Not every roofer does it right.

Tillotson Has Applied Spray Foam Roofing Systems Across Nebraska for Decades

We’ve been installing spray foam roofing systems on commercial and industrial buildings since before most of our competitors knew the product existed. Our field estimators assess your existing roof condition to determine whether foam is the right fit - and if it is, our crews have the equipment and experience to apply it properly. We don’t subcontract this work. We’ll tell you what we find, explain why foam makes sense or doesn’t, and give you a recommendation you can trust.

What Spray Foam Roofing Actually Is - And Why It Works

Spray polyurethane foam (SPF) roofing starts as two liquid components. When those components meet at the spray gun, a chemical reaction causes them to expand rapidly and harden into a rigid, closed-cell foam layer directly bonded to your existing roof surface. The result is a continuous, seamless layer of insulation and waterproofing material that conforms to every contour, curb, penetration, and drain on your roof. No seams. No laps. No fasteners. Every one of those details is a potential leak point on a conventional roofing system - foam eliminates them entirely.

 

The seamless quality is what separates spray foam from membrane systems. TPO, EPDM, and modified bitumen all rely on seams, termination bars, and flashings. Every one of those details requires skilled installation and ongoing maintenance, and every one of them can fail. Foam has none of those failure points. The bond is monolithic - the same continuous material from one edge of the roof to the other.

Once the foam is installed, a protective elastomeric topcoat is applied over the entire surface. This coating protects the foam from UV degradation, adds reflectivity to reduce heat gain, and provides the weather-resistant surface layer. The foam itself lasts decades. The coating is what gets renewed - typically every 10–15 years depending on the product and exposure. Think of the topcoat as a maintenance layer on a substrate that doesn’t need replacing.

What Spray Foam Roofing
Delivers

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1: Seamless Application - No Seam Failures

Spray foam cures into a single continuous surface with no seams, laps, or mechanical fasteners. On a conventional roof, those details account for the majority of leak events. Foam eliminates them. Penetrations, curbs, and irregular roof features get encapsulated rather than flashed - a fundamentally more reliable approach.

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2: Real Insulation Value - Lower Energy Bills

Closed-cell spray foam delivers R-6 to R-7 per inch of thickness, and it’s installed in direct contact with the roof deck with no gaps or voids. Nebraska’s climate puts real pressure on your building envelope - hot summers, cold winters, and strong winds. A spray foam system adds meaningful insulation value in the same application that seals your leaks, which is something no membrane replacement can do.

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3: Lightweight - No Added Structural Load

A typical spray foam roofing system weighs less than one pound per square foot. Membrane tear-off and replacement involves removing existing material and installing new - the net weight is roughly comparable. Foam applied over an existing membrane adds minimal load. For buildings where structural capacity is a consideration, this matters.

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4: Applied Over Most Existing Roofs - No Tear-Off Required

In most cases, spray foam can go directly over your existing roofing system - metal, built-up, single-ply membrane - without a tear-off. That means no loud demolition, no dumpsters on your property, and no construction waste disposal costs. It also means you’re not paying to remove and dispose of a perfectly functional substrate. The key qualifier is condition: if the existing roof has significant wet insulation or structural compromise, that needs to be addressed first. Our assessment will tell you whether your roof qualifies.

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5: Long Lifespan With Renewable Coating

The foam layer, once installed and protected, lasts decades. The protective topcoat is what wears with UV exposure over time - and when it’s time, recoating is straightforward and significantly less expensive than a new roof. This creates a roof asset that can be maintained indefinitely rather than replaced on a 20-year cycle. Over a 40-year building life, the lifecycle cost advantage is significant.

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6: Minimal Disruption - Building Stays Operational

Spray foam installation is quiet, clean, and fast relative to conventional roofing work. No tear-off means no structural exposure, no interior disruption, and no moisture risk during installation. Your building stays operational throughout the project. For facility managers responsible for keeping operations running, that matters.

How It Works

1. Schedule a Free Roof Assessment

A Tillotson field estimator comes to your property, evaluates your existing roof, and determines whether spray foam is the right fit for your building and budget. We document what we find and walk you through our thinking.

2. Get a Clear, Written Recommendation

You receive a written scope and recommendation - materials, prep requirements, application details, and warranty terms. If spray foam isn’t the right call for your situation, we’ll tell you that and explain what is.

3. Work Completed - Backed by Warranty

Our crews install the system with precision. Spray foam application is sensitive to conditions - temperature, humidity, substrate preparation - and our technicians manage those variables carefully. When we’re done, you receive warranty documentation and a direct contact for anything that comes up down the road.

See Completed Spray Foam Roofing Projects Across Nebraska Commercial and Industrial Properties - Before and After.

Facility managers and building owners across Nebraska describe what the process was like and what changed after.

"Had them install a complete spray on roof system in 2019 on our commercial downtown building, (great service!). Forward to the spring of 2024. A significant Large diameter hail storm hit and post the storm I called Tillotson’s and they arrived promptly and assessed the damage. Within days I had a crew on site to prep the roof for repairs. Outstanding service! Highly recommended!"

Dean Lynch, President of South Central Area Recovery board of Directors.

 

"Tillotson has been on of the best roofing and insulation companies I have used. I have used them to coat a 16000 sq. ft commercial roof all the way down to a small residential roof. Tillotson has the most professional spray foam team I have used. Their spray foam is accurate and clean. Tillotson will be my fist call for any roofing and insulation needs. I am also very satisfied to see their employees engaged in our local community."

Kurt Maly

 

Common Questions About Spray Foam Roofing

Is spray foam roofing right for my building?

Spray foam works well on flat and low-slope commercial roofs - particularly on buildings where energy efficiency matters, where disruption needs to be minimized, or where a conventional membrane tear-off would be expensive or structurally complicated. It performs best when the existing roof substrate is in reasonably sound condition - no widespread wet insulation, no significant structural damage. The building types where foam delivers the most value tend to be warehouses, manufacturing facilities, retail buildings, and offices with flat or low-slope roofing. The best way to know whether your building qualifies is a proper assessment. Our estimators will tell you honestly if foam makes sense or if another system is a better fit.

How long does spray foam roofing last?

The foam itself is extremely durable - closed-cell polyurethane foam installed under a protective coating can last 50 years or more. What gets renewed over time is the protective topcoat, which typically needs recoating every 10–15 years depending on the product and UV exposure. Recoating is far less expensive than reroofing and doesn’t require removing the foam. Many building owners treat this as a planned maintenance expense rather than a capital project. Over the life of a commercial building, this approach is almost always less expensive than periodic full membrane replacements.

Can spray foam be applied over my existing roof?

In most cases, yes. Spray foam adheres well to metal, built-up roofing, single-ply membranes (TPO, EPDM, modified bitumen), and concrete decks. The critical factor is substrate condition. Areas with wet or deteriorated insulation need to be cut out and replaced before foam goes over them - foam applied over wet insulation will trap moisture and compromise the installation. Our pre-installation assessment identifies those areas. If your existing roof is generally sound, a full tear-off is usually unnecessary. We’ll tell you what we find and give you an honest answer on whether your roof is a good candidate.

Does spray foam roofing hold up in Nebraska winters?

Yes - and it performs well in Nebraska’s full climate range, including hard winters, hot summers, and the freeze-thaw cycling in between. Closed-cell foam is dimensionally stable across temperature extremes and doesn’t absorb moisture, which is the primary failure mode for roofing insulation in cold climates. The protective topcoat is formulated to handle UV exposure and thermal movement. We’ve installed spray foam systems across Nebraska that have performed through decades of winters. The chemistry is proven in cold-climate applications, and our teams have the experience to manage the application conditions specific to our region.

How does spray foam roofing compare to TPO or EPDM?

TPO and EPDM are membrane systems - they provide waterproofing but no meaningful insulation value on their own. They rely on seams, flashings, and mechanical fasteners, all of which require precise installation and ongoing maintenance attention. Spray foam is both a waterproofing layer and an insulation layer in one application, and it has no seams or mechanical attachments to maintain. The upfront cost of a foam system is often comparable to a quality membrane replacement, and the lifecycle cost is typically lower when you factor in the insulation benefit and the recoat-vs-replace maintenance model. That said, membrane systems are well-suited for certain situations - and if that’s what’s right for your building, we’ll tell you. We install both.

Nebraska Spray Foam Roofing - From Lincoln to Omaha and Everywhere Between

Tillotson serves commercial and industrial properties across Nebraska from four locations: Lincoln, Kearney, Aurora, and Omaha. Call (800) 643-5731 or request a free assessment online.

Find Out If Spray Foam Is Right for Your Roof

We’ll come out, assess your existing roof, and give you a straight answer - no cost, no pressure.