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Buildings get hot for two main reasons:
1. Absorbing sunlight, which allows heat to enter.
2. The entered heat accumulating in the roof and being unable to escape.
Radi-Cool addresses both of these issues.

The primary reason buildings get hot is “solar heat entering through the roof.”
Insulation and heat-shielding materials are mechanisms designed to “prevent outside heat from entering the interior.”

Heat shielding is a technology that reflects sunlight to minimize the heat energy reaching the roof. It is more effective under strong sunlight, but any heat that is absorbed rather than reflected remains inside.

Thermal insulation creates a layer inside walls and roofs that “resists heat transfer.” It is a technology that slows down the rate at which heat enters, but it does not reduce the heat itself. Once it warms up, it tends to retain the heat.

The first type of microparticles in the functional layer reflects near-infrared rays to suppress temperature rise.

The second type of microparticles emits electromagnetic waves when the temperature rises, releasing heat outward.

The emitted electromagnetic waves are not easily absorbed by the atmosphere, allowing the heat to be released into outer space.

| Ideal for: | Roofs of factories, warehouses, and commercial facilities |
| Exteriors of outdoor electronic and electrical equipment |

| Company | Idemitsu Energy Solutions Co., Ltd. |
|---|---|
| Head Office | Tokyo, Japan |
| Business | Energy solutions and decarbonization services |

Idemitsu Energy Solutions Co., Ltd., a wholly owned subsidiary of Idemitsu Kosan Co., Ltd., has contributed to society through the safe and stable supply of energy. Looking toward the realization of a carbon‑neutral and circular society, we create new value in energy by proposing a wide range of energy solutions from the Idemitsu Group and responding to the diverse needs of our customers.

To support the realization of a carbon‑neutral society, Idemitsu Energy Solutions provides a variety of solutions, including renewable energy such as solar power and biomass fuels, carbon‑offset fuels, and other services that help promote decarbonized management. In addition, Idemitsu Kosan is actively engaged in the development and social implementation of next‑generation fuels—“the next step in energy”—such as hydrogen, ammonia, and synthetic fuels.

Idemitsu Energy Solutions has many qualified professionals, including Idemitsu Technical Master (ITM) certified specialists, Shell Lubricants Japan certified experts, decarbonization advisors, and various energy and construction-related professionals. Our “Energy Coordinators,” equipped with extensive knowledge of petroleum products, equipment, related facilities, regulations, and decarbonization initiatives, provide reliable solutions that help customers achieve energy efficiency and cost savings.
Questions about Radi-Cool? Please contact us using the form below.