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Did you know that your rooftop might be the reason your home feels scorching hot in summer? Yes! They soak up most of the daylight heat and turn your room into an oven. Now you know why your ACs and fans don’t work!
In order to bring the indoor temperature down, cool roof coatings could be the smartest option. In this blog, we will learn more about what cool roof coatings are, how they work, their advantages, types, cost and how to choose the best one for your home.
Let’s get started!
Also read: 30 home construction technology trends in 2025.
What Are Cool Roof Coatings And How Do They Work?
A cool roof coating is a special liquid that is applied to the top of your existing roof surface. Unlike normal exterior paint, this layer of coating reflects sunlight and releases heat. So, less heat is absorbed into your building.
While a regular dark roof can get as hot as 60 to 80°C under peak sun, a properly coated roof can be 5 to 15°C cooler. So, if you are looking for energy saving roof coating options, this could be your best choice.
So, What Are The Benefits Of Cool Roof Coatings?
Here are the top benefits of using cool roof coatings for your terrace.
- Lower indoor temperatures: Rooms stay 5 to°C cooler during peak hot season.
- Lower AC bills: Expect 15 to 25% savings on cooling costs.
- Protects roof lifespan: Blocks UV rays, reduces wear and tear, cracks and leaks.
- Easy to maintain: Just a fresh coat every few years keeps performance high; requires very minimal maintenance.
- Eco-friendly cooling solution: Fewer emissions, so good for the planet.
If you are looking for roof cooling solutions, a heat reflective coating is one of the most cost-effective upgrades you can make.
Types of Cool Roof Coatings
Here are some of the cool roof coating types for your reference.
- Acrylic roof coatings
Acrylic roof coatings are water-based coatings and are easy to apply. They are mostly used in flat roofs, terraces, and metal sheds. They have good reflectivity and are cost-effective. They need dry weather for proper drying.
- Elastomeric roof coatings
Elastomeric roof coatings are flexible, stretchable coatings that can handle minor roof movements and cracks. They provide good waterproofing along with heat reflection. They are great for older roofs or places with extreme temperatures.
- Silicone roof coatings
Silicone roof coatings are highly durable, UV resistant, and are perfect for areas with heavy rainfall or ponding water. They are a little bit expensive than acrylic coating, but have a longer lifespan and are easy to maintain. They are often used on commercial or industrial roofs.
- Polyurethane roof coatings
Polyurethane roof coatings are tough and durable and are suited for roofs with heavy foot traffic. They have good UV protection, but are slightly less reflective when compared to acrylic and silicone. They are more expensive, and so, are mostly used in industrial buildings.
- Heat reflective paint for roofs
Heat reflective paints are like exterior paint but with reflective pigments. They are best for basic heat control, but you cannot expect results like the other options. If you have a tight budget and have a small terrace or a simple flat roof, you can go for this option. It can be a DIY, too.
- White roof coating for heat
White reflective coating is nothing but a white coating with a reflective finish. They are usually acrylic or elastomeric options with added UV-blocking properties. They can give the best temperature drop and are most common for residential and commercial buildings in hot climates.
Some of the popular brands for cool roof coatings are Asian Paints SmartCare, Dr. Fixit Heatshield, and Berger WeatherCoat.
*GreenFortune recommends checking the reviews, performance and local availability before choosing the one for your home.
Also read: How do the right materials improve energy efficiency at home
How To Choose The Right Cool Roof Coating?
Here are a few tips for choosing the right cool roof coatings for your home.
- Climate
Check if your area is dry or dusty, as they need dirt-resistant options like silicone coatings. For rainy areas, silicone or elastomeric types work well.
- Roof type
Concrete slabs, asbestos sheets, and metal- each roof type may need different prep and coating types. Acrylic or elastomeric for concrete, elastomeric or polyurethane for asbestos, and silicone or elastomeric for metal roofs.
- Foot traffic
If people walk often on your roof, then tougher coatings like polyurethane are better.
- Budget vs lifespan
Cheaper options save money for time-being but may need recoating sooner.
Final Takeaway
Cool roof coatings are one of the simplest ways to beat the heat, cut down your hefty electricity bills because of the constant running of AC during summers, and protect your roof for years. Make sure to pick the best roof cooling paint India that suits your climate, roof type and budget.
If you are wondering if there is any other option left to prevent heat from entering your home, here is your guide: 12 practical rooftop cooling solutions to beat the heat at home.
GreenFortune’s uPVC windows and doors block heat, reduce noise, and improve energy efficiency. They seal better than traditional frames, keeping your home cooler and more comfortable all year round.
FAQs
1). Can rooftop coatings be applied on old, cracked roofs?
Yes, cool roof coatings can be applied on old, cracked roofs. Just make sure the surface is cleaned and the cracks are repaired first. Some suggestions for older roofs are elastomeric and silicone.
2). Is there any maintenance needed for cool roof coatings during monsoon?
While cool roof coatings help with waterproofing to an extent, you should still check for cracks or water pooling after heavy rains. Cleaning off algae or first, also keep them reflective.
3). How long does it take to apply a cool roof coating?
The application time depends on your roof size and the weather. A typical 1000 sq ft roof usually takes 1 to 2 days for surface prep and coating, in addition to 1 to 2 days for drying between coats.
