Cool Roof Tiles: For a Cooler Building and a Cooler Climate
Embrace the smart technology of cool roofs for exceptional energy performance. As climate change intensifies global warming, our white cool roof tiles offer a tangible way to mitigate the effects of rising temperatures. By reflecting 80-95% of solar radiation, they drastically reduce heat absorption into your building and contribute to lowering urban heat island effects.
Government Mandated Energy Efficiency
The Energy Conservation Building Code (ECBC) in India recognizes the vital role of cool roofs, including white cool roof tiles, in enhancing energy efficiency for commercial buildings. By choosing Clayman, you’re not only investing in comfort but also aligning with national sustainability goals.
A Time-Tested Solution
The principle behind white roofs is a globally proven, cost-effective method of combating heat that has been utilized for centuries. Clayman brings this enduring solution to you with advanced manufacturing and material science.
Superior Solar Reflectance Index (SRI) Tiles
Clayman white cool roof tiles are specifically engineered to maintain a pleasant building temperature in hot climates. The SRI index of cool roof tiles measures 80 to 96% of a surface’s ability to reflect solar and infrared heat, and is a key indicator of their performance. Our tiles are crafted with special mineral properties to achieve exceptional SRI values.
The Power of Cool Roofs
White cement and pure lime based tiles offer a significant benefits for a cool roof by reflecting large amount of sunlight due to their light color, effectively reducing heat absorption and lowering internal temperature of a building, leading to energy saving on cooling costs, especially in hot climates this is primarily because white cement has a high solar reflectance index.(SRI) value making it an excellent choice for cool roof applications.
Durable and Aesthetically Pleasing Precast Tiles
White cement tiles that are precast can be installed on roofs, these tiles are highly durable and they also provide a uniform reflective surface. This helps in improving the aesthetic appeal of the roof and also provides cooling benefits, this offers cooling advantages in addition to enhancing the roofs visual attractiveness.
Exceptional SRI and Emissivity Values
Clayman white concrete tiles boast impressive Sun Reflecting Index (SRI) values ranging from 71% to 93%, coupled with emissivity between 0.85 and 0.95%. These high values underscore their superior ability to reflect solar radiation and release absorbed heat.
The Science Behind the Coolness: High Thermal Reflectivity
The remarkable cooling efficiency of Clayman cool roof tiles has strong thermal reflectivity. This inherent property allows the tiles to reflect a significant portion of sunlight, minimizing heat absorption. White cement exhibits a solar reflectance value of 80-95%, meaning it can reflect a remarkable 80-95% of the solar energy that strikes it. In stark contrast, traditional dark roofing materials typically reflect only 5 to 20% of solar energy.
Understanding Solar Spectrum and Reflectance
Solar energy reaching the Earth comprises ultraviolet rays (5%), visible light (43%), and infrared energy (52%). Cool surfaces like Clayman tiles are designed with high reflectance across this entire solar spectrum, ensuring maximum heat rejection.
Cool Roof Solutions: Reflecting Sunlight, Reducing Heat
When solar energy strikes a Clayman cool roof, the majority is reflected back into the atmosphere, preventing excessive heat absorption. Unlike traditional dark roofs that readily absorb sunlight and heat up your building, our cool roofs stay significantly cooler under the sun, minimizing heat transfer indoors.
Compliance with Indian Green Building Standards
Leading rating systems in India, including the Indian Green Building Council (IGBC), LEED, and GRIHA, mandate compliance with ECBC norms as a prerequisite for building certification. By choosing Clayman cool roof tiles, you are taking a crucial step towards achieving these green building standards.
Science of Cool Roof Tiles
How does cool roof tile works?
To understand how roofs can keep cool in the sun, you need to first understand solar energy. Solar energy is composed of ultraviolet (UV) rays, visible light and infrared energy. Slightly less than half of sunlight is visible; a small fraction, less than 10% arrives as invisible ultraviolet light, sunburns, and nearly half of sunlight arrives as invisible near infrared radiation.
The solar energy from the sun strikes a rooftop and mostly reflects back into the sky. However, some of that solar energy or radiation is absorbed as heat in the roof. Cool roofs reflect more sunlight and absorb less heat than traditional roofs. Cool roofs stay Cooler in the Sun because of:
Solar reflectance – ability to reflect sunlight
Thermal Emittance – ability to cool down by emitting heat that is absorbed
- Both of these properties are measured on a scale of 0 to 1 (0% – 100%) – the higher values, the cooler the roof.
- Together, these properties help roofs to absorb less heat and stay up to 50-60°F (28-33°C) cooler than conventional rooftops during peak summer weather.
- White cool roof tile does a great job of reflecting sunlight while black is a great absorber.
Our tested White Cool Roof Tiles are having these special Properties
- Solar direct Reflective upto 0.7569
- Emissivity upto 0.920
- Solar reflective index (SPI) 94%
- Surface temperature Low wind 52.6 » Medium wind 46.8 v High wind 41.9
- As per ASTME 1980 BSEN 12898 EN.673, EN410
The Cool Roof Building has the charecterstic of high solar reflactance (ability to reflect solar radiation) and high infrared emitance (faster release of abosorbed heat in the form of Infrared radiation) It reduse the heat transfer to the building.
