A single spray-applied polyurea membrane — bonded down, wrapped around every vent and built to flex with the road.
Every seam on an RV roof is a future leak. The ArmorThane method replaces seams, laps and caulk with one continuous polyurea membrane — and gives the people who spray it a business they own.
Most RV roof leaks don't start in the middle of the roof. They start where something was joined, sealed or screwed down — and that's exactly where the ArmorThane method removes the weak point.
Membrane roofs are pieced together. Every lap and edge is held by sealant that has to be maintained forever.
Sun and heat dry out lap sealant and caulk around vents, skylights and AC units until water finds a path.
An RV roof twists on every mile. Rigid or thin coatings crack; joints open up.
Spray polyurea forms one monolithic membrane that stretches several hundred percent before it breaks.
How it worksThe same tried-and-true process ArmorThane applicators use on every RV roof — from the first walk of the roof to the final sign-off.
Every vent, seam, AC shroud, skylight and soft spot gets mapped. Water-damaged decking is cut out and replaced first — polyurea seals whatever is underneath it, so the deck has to be sound and dry.
Failed lap sealant and loose membrane are removed, the surface is cleaned and scuffed, and sidewalls, windows and fixtures are masked. Rubber roofs like EPDM are low-surface-energy substrates, so they get substrate-specific prep.
A bonding primer matched to the roof material is applied so the membrane locks to the substrate. ArmorThane treats prep and primer as critical — moisture or contamination left behind is what causes blisters later.
Heated, plural-component equipment sprays polyurea at roughly 2,000–3,000 psi with material at 150–160°F. It wraps edges, vents and fixtures in a single monolithic membrane that stretches several hundred percent before it breaks, and is tack-free in about an hour.
A UV-stable topcoat goes over the base membrane to protect it from sun exposure. Fixtures are reinstalled, the roof gets a final inspection, and most RVs are back on the road after one to two days on site.
An honest side-by-side of the three ways RV owners deal with a tired roof.
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| Feature | Best overallArmorThane spray polyurea★★★★★ | Roll-on / brush coatings★★★★★ | Membrane replacement★★★★★ |
|---|---|---|---|
| Seams on the finished roof | None — one monolithic membrane | No seams, but a thin film | Laps and seams held by lap sealant |
| Strength | Tensile strength in the thousands of psi* | A couple hundred psi for typical acrylics* | Depends on the sheet installed |
| Flexes with the road | Stretches several hundred percent | Thin films can crack with movement | Sheet flexes; sealed seams are the weak point |
| Time on site | 1–2 days; tack-free in ~1 hour | Multiple coats with dry time between | Tear-off and full re-install |
| Ongoing upkeep | Annual inspection | Periodic re-coats | Re-seal laps and fixtures regularly |
| Expected service life | 20+ years expected* | Short re-coat cycles | Varies with membrane and upkeep |
*Figures as cited by ArmorThane. Our ratings are editorial and reflect the roof's long-term resistance to leaks.
ArmorThane has been building applicators since 1989. You get the equipment, the training and the tech support — and you keep the business. No franchise. No royalties. No one to answer to but your customers.
Drag the sliders to model an RV roof business.
Illustrative only — not a guarantee of earnings. ArmorThane cites typical RV roof quotes of about $3,500–$7,000 for a 30-ft RV. Labor, travel, insurance, overhead and taxes are not included; your results depend on your market and how you run your business.
How an ArmorThane applicator takes an RV roof from leaking and patched to one seamless polyurea membrane — every step, in order, and why each one matters.
Most RV roof leaks don't start in the middle of the roof. They start where something was joined, sealed or screwed down. Here's where to look — and how to stop chasing them.
Three ways to deal with a tired RV roof, compared side by side — seams, strength, flexibility, downtime and long-term upkeep.
It replaces seams, laps and caulk with a single spray-applied polyurea membrane. The roof is inspected and repaired, prepped, primed, sprayed with heated plural-component polyurea, then finished with a UV-stable topcoat.
Most common RV roof types — rubber (EPDM/TPO), fiberglass and aluminum — can be coated when the substrate gets the right prep and bonding primer. Your applicator confirms compatibility during the inspection.
Typically one to two days on site. The polyurea itself is tack-free in about an hour; most of the time goes into inspection, repair and prep.
ArmorThane cites typical quotes of roughly $3,500–$7,000 for a 30-foot RV. Size, roof condition and any deck repair move the number.
ArmorThane cites an expected service life of 20+ years for a properly applied system — because there are no seams or lap sealant to break down.
No franchise fee. No royalties. Hands-on training, certification and a 24/7 tech line behind every job you spray.
