Liquid Applied Roofing

A liquid-applied roofing system can be a smart, cost-friendly alternative to a full replacement. Designed to restore and protect, these coatings are applied directly to your existing roof to create a seamless, watertight barrier.

From elastomeric and acrylic to silicone solutions, liquid-applied systems offer flexibility, UV resistance, and long-lasting performance. They’re a strong option for extending the life of your commercial roof while avoiding the downtime and expense of a complete tear-off.

Our team will walk you through the choices and help determine the right product for your building, budget, and long-term needs.

If you’re interested in a liquid-applied roofing system that restores performance and protects your investment without the cost of a full replacement, contact us today to learn more about the options available for your business.

What liquid applied roofing actually is

A liquid applied membrane is exactly that: a fluid coating rolled or sprayed onto an existing roof, which cures into a single seamless waterproof layer. Because it is applied wet, it forms continuously over the surface and around penetrations, curbs and details rather than being seamed together in sheets.

That seamlessness is the whole point. On a roof where the field is sound but the details are the problem, and on commercial roofs the details are almost always the problem, a liquid system addresses every penetration, seam and transition in one pass.

Where it makes sense

• A sound roof with a failing surface. Where the membrane is aging but the insulation beneath is dry, a liquid system can add a decade or more without a tear-off.
• Complicated roofs. Buildings with a lot of penetrations, curbs, pipe supports and equipment are exactly where sheet systems are hardest to detail well and where a liquid system has the clearest advantage.
• Buildings that cannot easily be disrupted. No tear-off means no debris, no dumpsters full of old roofing, and the noisiest phase of a replacement is avoided entirely: relevant for medical, retail and occupied offices.
• Metal roofs with fastener and seam issues. Coating over a sound metal roof addresses hundreds of individual fastener penetrations at once.
• Extending a roof toward a planned capital replacement. Where a full replacement is three or five years out in the budget, a coating can bridge the gap rather than nursing leaks.
• Reflectivity. Most systems cure to a bright white finish, which lowers surface temperature and reduces cooling load. In Jacksonville and the coastal South that is a measurable operating benefit rather than a marketing one.

Where it does not

Being straight about the limits, because a coating applied over the wrong roof is money spent twice:

• Wet insulation. This is the disqualifier. Coating over saturated insulation seals the water in, and the assembly continues to deteriorate underneath a surface that now looks new. Wet material has to come out.
• A roof at the end of its structural life. A coating is a surface treatment, not a rebuild. It cannot fix failed fastening, deteriorated decking or a roof that has been repaired past the point of coherence.
• Ponding water. Standing water is a drainage problem. Coating over it does not solve it, and most systems are not intended for permanent immersion.
• Too many existing layers. Code limits total roofing layers, and that applies whether the addition is a sheet or a liquid.

Which is why the assessment comes first. An infrared scan shows where moisture is across the whole roof, and core sampling confirms what the layers are and whether the insulation is dry. Those two tell you whether a coating is viable at all, see also overlay versus tear-off for the wider version of the same decision.

What the process involves

• Assessment. Infrared survey and core samples to establish moisture and assembly.
• Repairs first. Wet areas cut out and replaced, splits and open seams repaired, drainage corrected. A coating goes over a sound roof, not instead of fixing one.
• Cleaning. Thorough surface preparation, because adhesion depends entirely on it. This is the step that gets rushed on cheap jobs and it is the step that determines whether the coating lasts.
• Detailing. Reinforcing fabric embedded at seams, penetrations, curbs and transitions before the field coats go on.
• Field application. Usually a base and top coat at a specified thickness. Thickness is what the warranty is based on, so it is worth asking how it is verified.
• Recoat schedule. Every coating system has a recoat interval in its specification. Missing that window is what turns a maintainable roof into a replacement, which is why this belongs in a preventative maintenance plan rather than being forgotten.

How it compares to a full replacement

A coating costs substantially less than a tear-off and replacement, and it avoids the disruption, the debris and the noisiest phase of the work. What it does not do is reset the roof: it extends what is there, on the condition that what is there is sound and dry.

The honest framing is that these are not competing options so much as options for different roofs. A dry assembly with a tired surface is a coating candidate. A wet assembly is a replacement, and coating it is the most expensive way to postpone that by two years. See roof coatings for related systems and commercial roof replacement for the alternative.

Worth knowing on the accounting side: whether a coating is treated as maintenance or as a capital improvement can affect who pays under a lease and how it is treated for tax. Both are questions for your accountant and your attorney rather than for us, see landlord or tenant roof responsibility.

We install liquid applied systems across all eleven of our markets, see our service area and commercial roofing.

Liquid applied roofing questions