How long does a roof coating last?

A properly prepared and applied coating commonly adds 10 to 15 years of service life to a sound roof, depending on the product, the mil thickness applied, and the underlying roof condition. Coatings can be re-applied when they near end of life, resetting the cycle.

No. A coating is only as good as the roof it is applied to. If the underlying membrane is widely failed, wet insulation is trapped below or there is deck rot, a coating will not fix those problems, and replacement is the right call. We evaluate the roof and tell you honestly which situation you are in.

Will a coating actually lower my cooling bill?

On a dark commercial roof in Yuma, yes, and often significantly. A high-reflectance coating can lower roof surface temperatures by 30 to 50°F, which reduces the heat load on the building and the load on the HVAC system. The exact savings depend on the building, the existing roof, and the HVAC equipment.

How disruptive is a coating project?

Much less disruptive than a tear-off. The building stays in operation, there are no dumpsters, and there is no exposed deck at any point. Our flexible scheduling (including off-hours application where needed) minimizes any impact on your operation below.

Is a coating cheaper than a new roof?

Yes, typically by a large margin on commercial roofs. The exact savings depend on the building, but coatings commonly cost a fraction of a full replacement and defer the replacement by 10 to 15 years.

What roof types can you coat?

TPO, EPDM, modified bitumen, BUR (built-up), foam, and metal are all candidates for appropriate coatings. Asphalt shingle and tile generally are not.

Do you do residential coatings too?

Yes, when it makes sense, and low-slope or flat residential sections, aging metal, and foam roofs are typical residential candidates. Most pitched residential shingle or tile roofs are not good candidates for coating.

Are you licensed for commercial roof coatings?

Yes. ROC L-42 #070448 for commercial roofing and ROC C-42 #069354 for residential roofing. Bonded and insured in Arizona.

What warranty do I get on a coating?

You get the manufacturer’s warranty on the coating product (terms vary by product) plus our workmanship warranty on the application. Both are provided in writing at project close.

Roof Coatings and Restoration in Yuma, AZ

Cool roof coatings and full roof restorations for Yuma homes and commercial buildings. Extend service life, reflect solar heat and often defer a full replacement by 10 to 15 years.

Reviewed by Michael Lines, General Manager, Lines and Lundgreen Roofing and Insulation.

The Short Version

A roof coating seals a sound roof, reflects solar heat and extends service life, without a tear-off.
Cool roof coatings can reduce your roof surface temperatures by 30 to 50°F vs. dark roofing, cutting your cooling costs in Yuma’s climate.
Best suited to flat commercial roofs (TPO, EPDM, modified bitumen, BUR, metal) with sound underlying structure.
Can add 10 to 15 years of service life, deferring a full replacement.
Licensed ROC L-42 commercial and ROC C-42 residential roofing. Bonded and insured. 80+ years in Yuma.

What a Roof Coating Actually Does

A roof coating is a liquid-applied waterproof membrane that bonds to your existing roof surface and cures into a continuous, elastomeric layer. Applied correctly, it does three things at once:

Seals

Fills any hairline cracks, seams, and micro-punctures in the existing membrane. Stops the water paths that lead to interior damage.

Reflects

White and light-colored coatings reflect a large share of solar radiation, lowering roof surface temperatures and the cooling load on the building below.

Extends

A quality coating properly applied commonly adds 10 to 15 years of service life to a sound roof, deferring the cost and disruption of a tear-off and replacement.

Cool Roof Coatings and Energy Savings in Yuma

Dark commercial roofing membranes in Yuma can exceed 170°F on summer afternoons. That heat radiates down through your roof assembly, heats your attic or plenum, and ends up as load on your building’s cooling system. A cool roof coating reverses most of that.

The physics are straightforward:

Reflected solar radiation. A high-reflectance white coating can reflect 80% or more of incoming solar energy instead of absorbing it.
Thermal emittance. Good coatings also re-emit absorbed heat efficiently, keeping the surface cool.
Roof surface temperature. Coated roofs commonly run 30 to 50°F cooler than dark uncoated roofs in full sun.
Cooling cost impact. Lower roof surface temperature reduces the heat load on HVAC, which translates directly into lower electric bills in a cooling-dominated climate like Yuma’s.

In a desert climate, coating a dark commercial roof is often one of the highest-return energy upgrades a building owner can make short of full re-roofing.

Commercial and Residential Applications

Commercial Flat Roofs

The most common use of roof coating in Yuma. TPO, EPDM, modified bitumen, and BUR systems all accept compatible coatings. A coating can restore reflectivity on a weathered membrane, seal drying seams, and push replacement 10 to 15 years down the road, without shutting down your building for a tear-off. See our commercial roofing page for more on the commercial side.

Residential Applications

Less common on residential roofs but useful in specific cases: low-slope and flat residential sections, aging metal roofs that are still structurally sound, and foam-roof systems that need re-coating. It is not a replacement for a full re-roof on a failed shingle or tile roof. We will tell you if that is the situation.

When Coating Makes Sense vs When It Does Not

A coating is powerful on the right roof and a waste of money on the wrong one. Here is how we evaluate it:

Coating makes sense when:

The underlying membrane is still sound with no widespread failure
Leaks are isolated and can be repaired before coating
The insulation below the roof is dry and undamaged
The building owner wants to defer a full replacement
The roof is dark and cooling costs are high

Replacement is the better call when:

The membrane is widely failed with many seam or blister issues
Insulation below the roof is wet or degraded
Deck rot is present
Leaks are widespread, not isolated
The roof is past its useful life and a coating would be throwing good money after bad

Our Coating Process

Inspection and evaluation. We walk the roof and assess whether a coating is the right next step. If it is not, we tell you.
Preparation. Clean the surface (power-wash, debris removal), repair isolated leaks and damaged membrane, and address any penetrations or flashings that need attention.
Primer (where required). Some systems need a primer so the topcoat bonds correctly to the existing roof material.
Coating application. One or more coats of the specified product, applied to manufacturer spec on mil thickness and drying time.
Inspection and warranty. Final walk-through, written workmanship warranty and manufacturer warranty where applicable.

Frequently Asked Questions

Why Yuma Chooses Lines and Lundgreen for Roof Coatings

80+ years of Yuma-local roofing experience, including the commercial flat-roof systems coatings are designed for
Triple-licensed: ROC L-42 (commercial), C-42 (residential), C-40 (insulation)
Honest evaluations. If your roof needs replacement, we say so
Bilingual staff, Se Habla Español
Three generations of the Lines family. Read our history →

Get a Free Roof Coating Evaluation

We inspect the roof, tell you honestly whether coating is the right next step, and provide a written estimate if it is.

Request a Free Evaluation Commercial Roofing