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Where to Apply
Affordable Solar Reflective & Waterproof Roof Coating
Star Cool Shield Flexi
An easy-to-apply roof coating that reflects the sun's heat and keeps water out, giving you real cool-roof performance without the premium price tag.
Star Cool Shield Flexi is a roof coating built to do two jobs at once: bounce the sun's heat away from your roof, and keep water from getting in. It's the accessible entry point into StarShield's Cool Shield family, made for homes, schools, offices, and small businesses that want a genuinely cooler, drier roof without paying for a premium system they don't need.
Unlike ordinary white paint, which looks reflective but fades and loses its cooling effect fast, Flexi is formulated specifically to reflect heat and stay flexible over time — stretching along with your roof as it naturally expands and contracts, so hairline cracks don't turn into leaks.
Key Performance Benefits
- Reflects the sun's heat instead of soaking it in, so roofs run noticeably cooler.
- Forms a stretchy, waterproof layer that keeps rain and moisture out.
- Flexes with your roof, so it won't crack open over the hairline cracks that develop over time.
- Resists strong sun and monsoon weather without fading, cracking, or peeling.
- Resists dirt, algae, and fungus buildup, so it stays cleaner and keeps working longer.
- Delivers real cool-roof performance without the premium price tag.
GET A FREE QUOTE
Talk to an expert.
Our technical team will assess your requirement, recommend the right solution, and send you a detailed quote — at no cost.
An ESCO recognized leader in the industry
Request your free quote
Fill in the form and we will be in touch within 24 hours.
Request received!
Our team will review your details and get back to you within 24 hours.
The Challenge
Why an Ordinary Roof Isn't Enough
Untreated roofs run into the same problems every year. Star Cool Shield Flexi is built to solve all three, affordably.
Hot Roofs Make Indoor Spaces Uncomfortable
Roofs soak up sun all day long, and that heat doesn't stay outside — it makes top-floor rooms noticeably hotter and harder to cool down, especially through the summer months.
Ordinary Paint Doesn't Actually Cool Anything
A plain white coat of paint might look reflective at first, but it fades and dulls quickly under strong sun, and it was never built to genuinely reduce roof heat the way a proper cool-roof coating is.
Cracks Let Water Sneak Into the Roof
As concrete roofs expand and contract with the weather, tiny cracks form over time. Left untreated, these cracks let rainwater seep in, leading to leaks, damp patches, and bigger repairs down the line.
Benefits
6 Reasons Star Cool Shield Flexi Is the Smart Starting Point
Star Cool Shield Flexi reflects heat, waterproofs your roof, and flexes with everyday weather changes — delivering genuine cool-roof performance at a price built for wide, everyday use.
Real Heat Reflection, Not Just White Paint
Star Cool Shield Flexi is built specifically to bounce the sun's heat away, not just to look bright and white — giving your roof genuine cool-roof performance rather than a paint job that fades and stops working within a season or two.
Keeps Water Out, Season After Season
The coating forms a continuous, seamless layer over your roof, so rainwater has nowhere to get in — protecting the structure underneath through monsoon after monsoon.
Stretches and Flexes With Your Roof
As your roof naturally expands and contracts with heat and cold, this coating stretches right along with it, bridging small cracks before they become leaks instead of cracking itself.
Built to Handle Indian Weather
From scorching summer sun to heavy monsoon rain, this coating is formulated to resist fading, cracking, and peeling through every season, year after year.
Stays Cleaner for Longer
A finish that resists dirt, algae, and fungus buildup means your roof keeps its reflective, clean look for longer, with less frequent washing needed to keep it performing well.
Real Cool-Roof Performance at an Accessible Price
You get genuine heat reflection and waterproofing without paying for a premium system — making it a practical first step for homes, schools, and small businesses working within a budget.
How to Apply
Method of Application
Clean & Repair the Roof
Wash the roof to remove dirt and loose material, and fill in any visible cracks before you start. A clean, sound surface helps the coating bond properly and perform its best.
Prime if Needed
On new or very porous concrete, a primer coat helps the coating stick evenly and perform to its full potential — check your surface type before skipping this step.
Apply Two to Three Coats
Apply the coating evenly with a roller, brush, or spray, letting each coat dry fully before adding the next. Two to three coats is typical for most roofs, giving you a smooth, durable, reflective finish.
Testimonials
What Our Customers Say
FAQs
Frequently Asked Questions
Does this coating actually make my roof cooler?
Yes. It's formulated to reflect the sun's heat away from the surface rather than absorb it, so the coated roof stays noticeably cooler than an untreated one under strong sun.
Is it waterproof?
Yes. It forms a continuous, seamless layer over the roof that's designed to keep rainwater out, helping prevent leaks and damp patches.
How is this different from ordinary white paint?
Ordinary paint may look reflective at first, but it isn't built to genuinely reduce roof heat or stay flexible over time. Star Cool Shield Flexi is specifically formulated for heat reflection, waterproofing, and stretching with the roof as it moves.
How many coats do I need?
Most roofs need two to three coats for a smooth, durable, fully reflective finish. Higher-exposure areas may benefit from an extra coat.
Can I apply it over my old terrace paint?
Yes, provided the existing paint is clean, sound, and properly prepared — check for any loose or flaking material and remove it first.
Does it stop roof cracks from leaking?
It bridges hairline cracks by stretching along with the roof's natural movement, helping prevent small cracks from turning into leaks. Larger structural cracks should be repaired separately before coating.
How long does it take to dry?
The surface is typically dry to the touch within a few hours, with full curing taking about a week depending on weather conditions.
Is it suitable for schools, hospitals, and offices as well as homes?
Yes. It's a practical, budget-friendly choice for residential and institutional buildings alike, including schools, hospitals, offices, and small commercial properties.
Will it hold up through monsoon season?
Yes. It's formulated to withstand heavy rain and humidity without losing its waterproofing or reflective performance.
Does it help reduce my electricity bill?
By keeping the roof cooler and reducing the heat that gets into the building, it can help ease the load on your air conditioning — actual savings depend on your building and climate.
What's the difference between Flexi and other Star Cool Shield products?
Flexi is the affordable starting point in the range, built for roofs with normal drainage and everyday exposure. If your roof deals with standing water or extreme coastal weather, StarShield's higher-tier Cool Shield products are better suited to that level of demand.