Metal Roof Coating: A High-Performance Alternative to Full Roof Replacement
A flexible, adhesive, corrosion-resistant base coat and a rubber-like, ultra-thick, hydrophobic topcoat, built to shed water, resist future rust, and refresh the look of your roof, without the cost or disruption of tearing it off and starting over.
What Is a Metal Roof Coating?
A metal roof coating, sometimes called rubber roof coating or rubberized roof coating, is a multi-layer, liquid-applied system: a flexible, corrosion-resistant base coat plus a thick, rubber-like protective topcoat, sprayed directly onto an existing metal roof. It restores appearance and adds a layer of protection against future corrosion, without tearing off or replacing the existing panels. It’s built for roofs that are structurally sound but showing some small amounts of surface rust (less than 15% of the surface), fading, chalking, or wear.
How Spray-Net Applies Your Metal Roof Coating
Every project follows the same three-part process, completed on-site from start to finish.
On-Site Assessment & Weather Match
We assess your roof’s substrate and condition, then use The Spray-Network to time the application to real-time weather conditions for optimal film formation.
Rust-Inhibitive Base Coat
A flexible, adhesive base coat is applied directly to the metal, bonding to the substrate and moving with its expansion and contraction.
Multi-Pass Hydrophobic Topcoat
The ultra-thick topcoat is built up in multiple passes for maximum film thickness, left ready to shed water and resist fading.
How Does Our Metal Roof Coating Work?
Rust starts where water sits. Our system uses a flexible, rubber-like topcoat that moves with the metal’s natural expansion and contraction to avoid cracking and fissuring. Surface-level additives migrate to the top of the film, making it hydrophobic so water beads and sheets off rather than pooling. Applied as a thick membrane, this reduces the risk of rust forming down the road.
What Are the Benefits of Metal Roof Coating?
Five design choices work together so the coating holds up under sun, snow, and years of thermal movement.
Rust-Inhibitive Barrier
A flexible, adhesive base coat bonds to the metal and resists corrosion, while a rubber-like, hydrophobic topcoat keeps water from sitting on the surface, lowering the chances of rust taking hold over time.
Built-to-Last Thickness
A very thick, built-up film gives the coating the durability to handle years of sun, snow, and foot traffic.
Hydrophobic Shield
Water sheets and beads off the surface instead of pooling, reducing the standing moisture that drives rust and leaks.
Fade-Resistant Colour
Formulated with specific pigments chosen for lasting colour retention, so your roof keeps its look for years.
Optimal Sheen
A balanced gloss level that softens oil canning and panel imperfections without looking flat or worn.
What Metal Roof Types Can Be Coated?
Each substrate has different flexibility, breathability, and heat-resistance needs. Our formulation is adjusted to the specific roof we’re coating.
A Finish Tuned for Metal Roofing, Not a Generic Tint Base
Our gloss level is tuned to soften oil canning and panel imperfections, glossy enough to look refreshed, never flat or dated. Colours are built with specific pigments chosen for long-term colour retention.
What Makes Spray-Net’s Metal Roof Coating Different?
There aren’t off-the-shelf products that achieve the on-site, factory-grade finish we deliver, so we formulate our own line of industrial-strength exterior coatings, customized three ways.
Customized To The Surface
Some substrates need flexibility and breathability, others need heat resistance and hardness. Each coating is matched to that substrate’s properties.
Customized To The Weather
Dry time is one of the most important factors affecting adhesion. Our proprietary software, The Spray-Network, adjusts each coating to real-time weather conditions for optimal film formation.
Customized To The Colour
Each colour is built with an optimal resin-to-pigment ratio for long-lasting colour retention and maximum exterior fade resistance.
Metal Roof Coating vs. Roof Replacement: Which Is Right for You?
| FACTOR | METAL ROOF COATING | FULL ROOF REPLACEMENT |
|---|---|---|
| Typical cost | A fraction of full replacement | Full material + labour cost |
| Disruption | No tear-off, roof stays in place | Full tear-off and re-install |
| Timeline | Days, not weeks | Often 1–2+ weeks |
| Appearance | Refreshed colour and sheen | New panels |
| Best suited for | Structurally sound roofs with surface wear | Roofs with structural damage or failure |
Our Brand Promise To You
Factory Finish
We’ll deliver a finish that looks and lasts like it came off the assembly line.
Cost-Effective
We’ll transform your home quickly and for a fraction of the cost of replacement.
15-Year Warranty
All Spray-Net revamps are backed by our 15-year warranty against peeling.
No Surprises
You’ll know exactly what we’re painting and how much you’re paying.
Sustainable Reno
Revamping instead of replacing keeps materials out of landfills.
How Much Does Metal Roof Coating Cost?
Cost depends on your roof’s size, substrate, current condition, and pitch. Pricing typically starts at around $3 per square foot. Our metal roof coating typically costs a fraction of a full tear-off and replacement. We provide a free on-site assessment and quote based on your specific roof.
Metal Roof Coating FAQ
What is your metal roof coating?
Is this a rubber roof coating?
Does your metal roof coating stop rust completely?
What metal roof types and substrates can be coated?
Can this coating be applied to copper roofing?
How long will your metal roof coating last, and is there a warranty?
How does your metal roof coating compare to a full roof replacement?
Does weather affect how metal roof coating is applied?
Get a Free Metal Roof Coating Quote
Tell us about your roof — standing seam, corrugated, galvanized, galvalume, or aluminum — and we’ll put together a quote customized to your roof and your local weather.
