Once it hits 28°C inside, the work gets harder.
Chillers max out and the AC runs nonstop.
At 70°C up top, your roof's waterproofing ages twice as fast.
", "image": { "path": "assets/sans-cool-roof-carrre.webp", "alt": "Industrial warehouse with no reflective roof coating, soaking up heat" }, "position_image": "gauche", "note": "No reflective coating: the roof soaks up heat" }, { "layout": "texte_image", "origine": "CoolRoofExplainerSection", "entete": { "titre": "Reflective roof coatings: a concrete answer *to the heat problem.*" }, "contenu": "Our polyurethane resin — 14 years in the making — bounces back up to 85% of the sun's heat. Your roof surface drops from 70°C to 35°C. No major work, no downtime.
", "image": { "path": "assets/sans-cool-roof-blanc-carrre.webp", "alt": "Industrial building with a Covalba reflective roof coating, solar reflection" }, "position_image": "gauche", "note": "With a reflective roof coating: solar reflection", "cta": { "label": "Request a quote", "lien": "/en/diagnostic", "style": "primary" } }, { "layout": "texte_image", "origine": "WinterObjectionSection", "entete": { "titre": "What about heat loss *in winter?*" }, "contenu": "Winter sun doesn't heat your roof.
In winter, the sun sits low. It hits the walls, not the roof. Your roof barely sees any direct sun, so white or black, it does almost nothing to warm the inside.
In spring and fall, CovaTherm might cost you a little heat for a few hours a year. That's nothing next to what you save all summer.
", "image": { "path": "assets/chantier-cool-roof.jpg", "alt": "Covalba reflective roof coating project" }, "position_image": "gauche" }, { "layout": "grille_secteurs", "origine": "SectorsGrid", "entete": { "badge": "Industry sectors", "titre": "A reflective roof coating *built for your sector*", "intro": "Every sector comes with its own constraints: lines that can't shut down, the cold chain in logistics, hygiene rules in food & beverage, manufacturing standards in pharma, team comfort in commercial buildings. Our coatings fit your building, not the other way around." }, "mode": "auto" }, { "layout": "etapes", "origine": "SystemSection", "entete": { "badge": "How it works", "titre": "*3 layers of technology designed to* reflect, protect and last.", "intro": "A primer, a resin and a topcoat that guarantee 10 years of performance for your roof." }, "etapes": [ { "titre": "Bonding primer", "texte": "Adapts to the existing substrate. Every roof has its own chemistry, and every chemistry calls for its own primer. It's this invisible layer that guarantees the adhesion of the entire system. The primer creates a chemical bridge between your existing waterproofing and the reflective resin. Without it, nothing holds. With the right primer, the system is bonded to your roof for at least 10 years.\n\n« The wrong primer and the system blisters and peels inside a few months. It's the number-one reason cheap reflective coatings fail: one primer for every roof. We match the primer to the substrate, every time. » — Maxime Bourassin, founder" }, { "titre": "Reflective resin", "texte": "The heart of the system. It bounces sunlight back instead of soaking it up. The roof surface drops from 70°C to 35°C, so heat stops getting into your building. Not all reflective resins are equal. There are two families: acrylic resins (like the paint on your walls) and polyurethane resins (technical chemistry, tougher). The resin you pick decides everything: performance, lifespan, how well it shrugs off the weather.\n\n« 90% of the market sells general-purpose acrylic at €10/m². It lasts 2 to 5 years. We formulate polyurethane resins that last 8 to 10 years. SRI 118 after aging: a record. The difference is the chemistry. » — Maxime Bourassin, founder" }, { "titre": "Protective topcoat", "texte": "A clear topcoat that shields the resin from UV, dirt and early aging. It's the system's invisible armor. UV wrecks everything: plastics, paints, resins. A roof takes the full hit, 12 hours a day, 365 days a year. The topcoat soaks up the UV so the resin doesn't, and keeps the reflectivity going. It's the difference between 5 years and 20 years.\n\n« Without protection, even a good resin ends up yellowing after 3-4 years. CovaTherm 20 with finishing topcoat delivers 20 years of measured performance. That's why we're the only ones to claim an SRI of 118 after aging. » — Maxime Bourassin, founder", "image": { "path": "assets/cool-roof-layers.webp", "alt": "Cross-section of the Covalba reflective roof coating system" } } ] }, { "layout": "tableau_comparatif", "origine": "PriceComparisonSection", "entete": { "badge": "Investment", "titre": "Pays for itself in 24 months. *Performs for 10 years.*", "intro": "You could re-roof or put in industrial air-conditioning, but that's slow, disruptive and expensive. A reflective roof coating fixes it now." }, "entetes_colonnes": [ { "texte": "Covalba — €18-25/m²" }, { "texte": "Air-conditioning — €80-150/m²" }, { "texte": "New membrane — €80-100/m²" }, { "texte": "Full re-roofing — €150/m²" } ], "lignes_comparatif": [ { "cellules": [ { "texte": "Reduces indoor temperature" }, { "texte": "oui" }, { "texte": "oui" }, { "texte": "oui" }, { "texte": "oui" } ] }, { "cellules": [ { "texte": "Reduces the energy bill" }, { "texte": "oui" }, { "texte": "non" }, { "texte": "oui" }, { "texte": "oui" } ] }, { "cellules": [ { "texte": "No interruption to operations" }, { "texte": "oui" }, { "texte": "non" }, { "texte": "non" }, { "texte": "non" } ] }, { "cellules": [ { "texte": "Protects the existing waterproofing" }, { "texte": "oui" }, { "texte": "non" }, { "texte": "non" }, { "texte": "non" } ] }, { "cellules": [ { "texte": "No recurring charges" }, { "texte": "oui" }, { "texte": "non" }, { "texte": "oui" }, { "texte": "oui" } ] }, { "cellules": [ { "texte": "Pays for itself in under 2 years" }, { "texte": "oui" }, { "texte": "non" }, { "texte": "non" }, { "texte": "non" } ] }, { "cellules": [ { "texte": "Compatible with older buildings" }, { "texte": "oui" }, { "texte": "non" }, { "texte": "oui" }, { "texte": "oui" } ] }, { "cellules": [ { "texte": "No machinery on the roof" }, { "texte": "oui" }, { "texte": "non" }, { "texte": "non" }, { "texte": "non" } ] }, { "cellules": [ { "texte": "Fast application, no structural work" }, { "texte": "oui" }, { "texte": "non" }, { "texte": "non" }, { "texte": "non" } ] } ], "colonne_mise_en_avant": 1, "texte_apres": "And on top of that, it protects your roof. A reflective coating is more than a heat shield. By bouncing back UV and easing thermal shock, it adds 10 years to your waterproofing. You take the heat out today AND push your full roof renovation down the road. Two problems solved, one investment.", "cta": { "label": "Estimate", "lien": "/en/estimation", "style": "primary" } }, { "layout": "chiffres", "origine": "SocialProofSection", "figures": [ { "value": "5 / 5", "label": "Google rating · Verified customers" }, { "value": "+500", "label": "roofs coated", "sublabel": "since 2012" }, { "value": "+2M", "label": "m² coated" }, { "value": "14 years", "label": "in the making", "sublabel": "high-performance resins" } ], "theme": "sombre" }, { "layout": "tableau_comparatif", "origine": "PriceVSSection", "entete": { "badge": "Competition", "titre": "The most *cost-effective* solution over 10 years.", "intro": "The real cost of a reflective roof coating shows up over time. With Covalba, you cool your building with the coating that costs the least over a full 10 years." }, "entetes_colonnes": [ { "texte": "Standard acrylic resin — Resin used by 90% of competitors" }, { "texte": "Covalba polyurethane resin — Durable reflective protective resin" } ], "lignes_comparatif": [ { "cellules": [ { "texte": "Price per m²" }, { "texte": "~€10" }, { "texte": "€18-20" } ] }, { "cellules": [ { "texte": "Lifespan" }, { "texte": "3-5 years" }, { "texte": "8-10 years" } ] }, { "cellules": [ { "texte": "Real cost over 10 years" }, { "texte": "€25-30/m²" }, { "texte": "€18-20/m²" } ] }, { "cellules": [ { "texte": "-" }, { "texte": "Yellows in 2-3 years" }, { "texte": "Maintains its performance over time" } ] }, { "cellules": [ { "texte": "-" }, { "texte": "Loses 30-50% of reflectivity" }, { "texte": "20-year anti-UV topcoat (CovaTherm 20)" } ] }, { "cellules": [ { "texte": "-" }, { "texte": "Re-application required" }, { "texte": "SRI 118 after aging" } ] } ], "colonne_mise_en_avant": 2, "texte_apres": "Price per m² means nothing without lifespan.", "cta": { "label": "Estimate my budget", "lien": "/en/estimation", "style": "secondary" } }, { "layout": "texte_image", "origine": "RSESection", "entete": { "badge": "Certifications & warranties", "titre": "Products that support your *environmental commitments and certifications.*" }, "contenu": "Compatible with ISO 50001, BREEAM, LEED
Fits into your existing building certification programs.
10-year contractual warranty
Written warranty on reflective performance and adhesion.
Measured and documented performance
SRI verified after accelerated aging, reflectance data provided on request.
A reflective roof coating is one of the best ways to take the heat out of a commercial or industrial building. It's been standard practice in the US for more than twenty years, it's well backed by research, and it costs a fraction of industrial air-conditioning or a full waterproofing redo. Here's what to know before you start.
", "sections": [ { "titre": "How a reflective roof coating works: solar reflectance and thermal emissivity", "contenu": "Two properties decide how well a reflective roof coating performs: solar reflectance and thermal emissivity.
Solar reflectance is how much sunlight a surface bounces back instead of soaking up. Ordinary white paint manages 70 to 80% when new, then fades fast as it gets dirty and chalks. A good reflective coating starts above 90% and stays there, thanks to its pigments and an anti-UV topcoat.
Thermal emissivity is how readily the surface sheds the little heat it does absorb, as infrared. The best coatings clear 0.90.
Put the two together and you get the SRI (Solar Reflectance Index) — the ASTM E1980 number the industry rates coatings by. CovaTherm 20 comes in at SRI 119 new, and 118 after accelerated aging in a QUV chamber. On a peak summer day a dark roof can hit 70 to 80 °C; a reflective one stays about ten degrees above the air temperature, so far less heat ever reaches the building.
" }, { "titre": "What a reflective roof coating does for your building", "contenu": "Six benefits we can measure — in the research and on our own jobs:
It's not a fix for everything. Three limits to know up front:
Reflective coatings aren't all the same. Four things decide how one actually performs — and how long it lasts:
A professional job runs in five steps, done by trained applicators:
It all goes on in dry weather, 10 to 35 °C. A typical 1,000 m² roof takes 3 to 5 days, and your operation never stops. Crews are trained to work safely up top.
" }, { "titre": "Reflective roof coating, insulation or air-conditioning: the comparison", "contenu": "A reflective coating isn't the only way to cool a building. But it beats insulation and air-conditioning on three counts: cost, how fast it goes in, and payback.
| Criterion | Reflective coating | Exterior insulation | Air-conditioning |
|---|---|---|---|
| Cost per m² | €20 to €25 | €80 to €100 | Low to buy, costly to operate |
| Project duration | 3 to 5 days | 2 to 4 weeks | Fast installation |
| Energy savings | 15 to 40% | 20 to 50% | None (increases the bill) |
| Durability | 8 to 20 years | 20 to 30 years | 10 to 15 years |
| Interruption to operations | No | Yes | Yes |
| Average ROI | 14 months | 8 to 12 years | Never |
A reflective coating pays back fastest, with nothing torn off and no downtime. For an industrial or commercial building over ten years old, it's the cheapest way to drop the indoor heat and buy the roof more years.
" }, { "titre": "Reflective roof coatings and the energy transition", "contenu": "Beyond the building itself, a reflective roof feeds the bigger picture: less air-conditioning, lower cooling emissions, and a more comfortable place to work.
City-scale research all lands in the same place: cover enough industrial and commercial roofs and you offset a real share of urban warming, shave AC demand, and save lives in a heat wave. For one building, it's a smart investment. For a city, it's a public-health move.
" } ], "sources": [ { "label": "Akbari, H., Berdahl, P., Levinson, R., Wiel, S., Miller, W., & Desjarlais, A. (2005). Aging and Weathering of Cool Roofing Membranes. Lawrence Berkeley National Laboratory / U.S. Department of Energy.", "url": "https://www.osti.gov/servlets/purl/860745" }, { "label": "Levinson, R., & Akbari, H. (2010). Potential benefits of cool roofs on commercial buildings: conserving energy, saving money, and reducing emission of greenhouse gases and air pollutants. Energy Efficiency, 3, 53-109.", "url": "" }, { "label": "Macintyre, H.L., & Heaviside, C. (2019). Potential benefits of cool roofs in reducing heat-related mortality during heatwaves in a European city. Environment International, 127, 430-441.", "url": "" }, { "label": "Santamouris, M. (2014). Cooling the cities — a review of reflective and green roof mitigation technologies to fight heat island and improve comfort in urban environments. Solar Energy, 103, 682-703.", "url": "https://doi.org/10.1016/j.solener.2012.07.003" }, { "label": "Santamouris, M. (2020). Recent progress on urban overheating and heat island research. Energy and Buildings, 207, 109482.", "url": "" }, { "label": "Synnefa, A., Santamouris, M., & Akbari, H. (2007). Estimating the effect of using cool coatings on energy loads and thermal comfort in residential buildings in various climatic conditions. Energy and Buildings, 39(11), 1167-1174.", "url": "" }, { "label": "U.S. Environmental Protection Agency (2024). Using Cool Roofs to Reduce Heat Islands.", "url": "https://www.epa.gov/heatislands/using-cool-roofs-reduce-heat-islands" }, { "label": "Kalkstein, L.S., et al. (2022). Increasing Trees and High-Albedo Surfaces Decreases Heat Impacts and Mortality in Los Angeles, CA. International Journal of Biometeorology.", "url": "" } ], "replie": false }, { "layout": "texte_image", "origine": "ApplicatorsSection", "entete": { "badge": "Distributors & partners", "titre": "Distribute Covalba reflective roof coatings" }, "contenu": "Are you a materials distributor, a waterproofing merchant or a roofing company? Stock our reflective roof coatings and give your customers a high-performance solution.
", "liste": [ { "texte": "Direct manufacturer supply at the best terms" }, { "texte": "Dedicated technical support and product training" }, { "texte": "Documentation, technical data sheets and sales support" } ], "image": { "path": "remote/9a4cb6d18cee.jpg", "alt": "Covalba reflective roof coatings for distributors and partners" }, "position_image": "droite", "cta": { "label": "Become a partner", "lien": "/en", "style": "secondary" } } ] }