As heatwave conditions continue across several parts of the country, people are constantly searching for low-cost ways to keep their homes cool without relying heavily on air conditioners. In a video that is now gaining attention online, a man shared a simple rooftop cooling method that he claims helped reduce indoor heat at a cost of less than ₹800.ALSO READ: Ebola virus in India?Instead of spending ₹20,000 to ₹30,000 on an air conditioner, the man used a mixture of Fixit URP, white chuna (lime powder), and Fevicol binder to coat his roof and reflect heat. The video has sparked interest among homeowners looking for budget-friendly summer cooling hacks.He claimed that by using this simple cooling trick, the temperature can go down by 15 degrees Celsius even in brutal heatwaves. He further added that this process is based on science and is a simple, cost-effective method to beat the extreme heat.ALSO READ: Top 10 ChatGPT, Gemini prompts for Bakrid and Eid Al Adha postersWhat Did the Man Use on the Roof?The man explained that he prepared a cooling coat using three basic materials:Fixit URP waterproofing solutionWhite chuna (lime powder)Fevicol binderAccording to him, the combination helps create a reflective layer on the roof, reducing heat absorption during extreme summer temperatures. He claimed the total expense for the process stayed below ₹800, making it far cheaper than buying or running an air conditioner.— dks_230 (@dks_230) How Was the Cooling Mixture Prepared?In the video, the man demonstrated the full process step by step.Step 1: Mixing the MaterialsHe first mixed white chuna with water to create a smooth liquid base. After that, he added Fixit URP and a small amount of Fevicol binder to improve sticking and durability.Step 2: Preparing the RoofBefore applying the coating, he cleaned the rooftop surface properly to remove dust and dirt.Step 3: Applying the CoatUsing a brush and roller, he spread the mixture evenly across the roof surface. He suggested applying more than one layer for better results.Step 4: Letting It DryAfter coating the roof, the surface was left to dry completely under sunlight.Why White Roof Coatings Help Reduce HeatExperts often explain that lighter roof surfaces absorb less heat compared to dark concrete roofs. White coatings reflect a larger amount of sunlight, helping lower roof temperature and reducing indoor heat buildup.This is why white reflective paints and lime-based coatings are commonly used in many hot regions during peak summer months.“Why Spend ₹20,000–30,000 on AC?” Man’s Video Goes ViralThe man said people spend huge amounts on air conditioners and electricity bills every summer, while simple traditional cooling techniques can also provide relief at a much lower cost.His statement — “Why spend ₹20,000–30,000 on ACs?” — caught attention online, especially among users looking for affordable alternatives during rising temperatures and high power bills. Many social media users praised the idea for being:Budget-friendlyEasy to applyUseful during heatwavesEnergy-savingHowever, some users also pointed out that the effectiveness can vary depending on roof type, weather conditions, and quality of materials used.Low-Cost Cooling Hacks Becoming Popular During HeatwavesWith temperatures crossing dangerous levels in many Indian cities, several people are turning towards traditional and DIY cooling methods such as:White roof coatingsBamboo shadesHeat-reflective sheetsWater sprinkling systemsNatural ventilation techniquesThese methods are becoming increasingly popular among households trying to reduce electricity consumption during summer.Can DIY Roof Cooling Replace an Air Conditioner?While low-cost roof cooling methods may help reduce indoor heat to some extent, they may not completely replace air conditioners during extreme heat conditions.Still, such techniques can:Lower roof temperatureReduce heat entering roomsImprove indoor comfortHelp cut electricity usageFor many households, especially in extremely hot areas, these affordable cooling hacks are being seen as a practical supplementary solution during summer.