i2Cool’s Electricity-Free Cooling Film Applied at Dorsett Putrajaya to Improve Comfort and Energy Efficiency for Lake-View Dining Space

PUTRAJAYA, Malaysia, May 21, 2026 /PRNewswire/ -- i2Cool has completed the installation of its i2Film Electricity-free Cooling Film at Dorsett Putrajaya, helping the hotel address solar heat gain and improve guest comfort in its glass-fronted lake-view dining area. Located in Putrajaya, Malaysia, where the annual average temperature is around 28°C and hot, humid weather persists throughout the year, hotels built beside scenic waterfronts often face a dual challenge: maintaining open views while managing the heat load brought by strong sunlight. At Dorsett Putrajaya, Citra Rasa all-day dining restaurant is one of the hotel's signature spaces. Overlooking Putrajaya Lake, the restaurant is known for its lake-view dining experience and local Malaysian flavours, including Nasi Lemak and Nasi Goreng. However, the large floor-to-ceiling glass façade also created a long-standing comfort issue, especially for tables close to the windows. According to feedback from hotel staff, window-side tables were often left empty during busy weekend brunch hours, as guests would ask whether those seats were too hot. The issue was not simply a matter of air-conditioning capacity. Under prolonged sunlight, the glass itself became a continuous heat source, transferring heat into the indoor space. The hotel's engineering team had been aware of the issue for nearly two years. The key technical question was whether the heat-insulating film should be installed on the interior or exterior side of the glass. While interior application is shielded from weather, site evaluations revealed significant drawbacks, including structural instability of the existing trusses for worker access and the high risk of disrupting operations within the restaurant. After rounds of technical discussion and on-site comparison testing, i2Cool provided the hotel with a detailed technical assessment showing that exterior installation offered stronger advantages in heat dissipation and thermal insulation for this project. By installing the film on the exterior side, solar radiation could be reflected before acting on the glass, helping block heat at the source and maintain a lower glass substrate temperature. The hotel ultimately selected i2Film Electricity-free Cooling Film EFC-Blue 70e and adopted exterior-side installation. The project covered a total area of 421.6 square metres and was completed on 9 March 2026, ahead of Malaysia's hottest period of the year. Following installation, on-site monitoring showed a significant improvement in thermal and lighting performance: Solar irradiance decreased from 230.9 W/m² to 73.5 W/m², representing a 68.16% reduction. Illuminance was adjusted from 5,714 Lux to 4,830 Lux, reducing excessive heat while maintaining a bright indoor dining environment. With up to 94% mid-infrared emissivity, i2Film helps release heat absorbed by the glass surface without additional electricity consumption. The 421.6 m² installation is estimated to help the hotel save approximately 137,915.3 kWh of air-conditioning energy per year. Beyond the data, the change was also reflected in guest experience. According to follow-up feedback, guests who previously felt a burning sensation when seated near the windows now described the space as bright but no longer uncomfortably hot. Another business guest also noted that it was the first time he had finished a meal there without feeling sweaty on his back. According to the hotel's front office manager, staff no longer need to explain that the window-side tables may feel hot. During weekend brunch hours, some guests now actively ask to be seated by the windows. For a hotel that receives hundreds of diners every day, the shift from "avoided seats" to "preferred seats" is a clear validation of the improvement. For hotel operations, the project also delivers practical energy-saving value. The 421.6 m² installation is estimated to help save approximately 137,915.3 kWh of air-conditioning energy per year. However, according to an internal review by the hotel management, the most valuable outcome was not only the number on the electricity bill, but the fact that the hotel no longer needs to struggle with the same long-standing issue. The Dorsett Putrajaya project provides a practical reference for glass façade buildings in tropical regions seeking to improve thermal insulation and reduce cooling demand. From the technical discussion two years ago to the final decision to adopt exterior-side installation, the project shows how a practical material-level cooling solution can help balance scenic views, indoor comfort and energy efficiency. For i2Cool, the 421.6 m² application at Dorsett Putrajaya is one example among more than 500 projects across nearly 30 countries and regions. From Dubai Mall to lakeside restaurants in Putrajaya, from data centres to star-rated hotels, electricity-free cooling technology is turning "light transmission without excessive heat" from a technical concept into a tangible cooling experience. -- Source: i2Cool Limited

PUTRAJAYA, Malaysia, May 21, 2026 /PRNewswire/ — i2Cool has completed the installation of its i2Film Electricity-free Cooling Film at Dorsett Putrajaya, helping the hotel address solar heat gain and improve guest comfort in its glass-fronted lake-view dining area. Located in Putrajaya, Malaysia, where the annual average temperature is around 28°C and hot, humid weather persists […]

Election Commission (EC) chairman Datuk Seri Ramlan Harun

PUTRAJAYA, May 21 -- Election Commission (EC) chairman Datuk Seri Ramlan Harun has confirmed that no by-elections will be held for the Pandan and Setiawangsa parliamentary seats yesterday. He said the matter was based on Article 54(1) of the Federal Constitution, whereby Dewan Rakyat Speaker Tan Sri Dr Johari Abdul had informed the EC that there was no necessity to fill the casual vacancies. “In line with that, no by-election for the P.100 Pandan and P.118 Setiawangsa parliamentary constituencies will be held,” he said in a statement today. He said the EC received notification from Johari through a letter dated today regarding the status of the two parliamentary seats after they were declared vacant under Article 51 of the Federal Constitution. On Sunday (May 17), Datuk Seri Rafizi Ramli, who is also a former PKR deputy president, and Nik Nazmi Nik Ahmad, a former PKR vice-president, announced that they would vacate their parliamentary seats on Monday and leave the party effective Tuesday through letters submitted to the party secretary-general. They subsequently took over Parti Bersama Malaysia (Bersama), a small political party based in Penang. -- BERNAMA

PUTRAJAYA, May 21 — Election Commission (EC) chairman Datuk Seri Ramlan Harun has confirmed that no by-elections will be held for the Pandan and Setiawangsa parliamentary seats yesterday. He said the matter was based on Article 54(1) of the Federal Constitution, whereby Dewan Rakyat Speaker Tan Sri Dr Johari Abdul had informed the EC that […]

Anwar Receives Courtesy Call From International Scholar Vali Nasr

KUALA LUMPUR, May 13 — Prime Minister Datuk Seri Anwar Ibrahim today received a courtesy call from international scholar Prof Seyyed Vali Reza Nasr at Perdana Putra in Putrajaya. In a Facebook post, Anwar said Vali Nasr, a renowned scholar, author and international relations expert in West Asian politics and Islamic studies, was in Malaysia […]

Thunderstorms, Heavy Rain In KL, Putrajaya, Eight States Till 9 PM – MetMalaysia

KUALA LUMPUR, May 10 2026 — The Malaysian Meteorological Department (MetMalaysia) has issued a thunderstorm, heavy rain and strong wind warning for Kuala Lumpur, Putrajaya and eight states expected to last till 9 pm. MetMalaysia said Perlis, Perak and Selangor as well as the Federal Territories of Kuala Lumpur and Putrajaya will be affected. The […]

Raja Muda of Perak Visits Putrajaya, Discusses Development and Public Welfare

PUTRAJAYA, March 31 — The Raja Muda of Perak, Raja Jaafar Ibni Almarhum Raja Muda Musa, graced Putrajaya with a royal visit today, underscoring the continued role of the monarchy in supporting national and state development. During the visit, discussions were held on a range of key issues concerning development and the well-being of the people, particularly those involving the state of Perak. The engagement provided an opportunity for an exchange of views on initiatives aimed at enhancing public welfare. Among the matters highlighted were economic growth and education, reflecting the Raja Muda’s strong commitment and concern toward strengthening the state’s progress while unlocking the full potential of its people. The visit also symbolised the important role of the royal institution in complementing development efforts and promoting the welfare of citizens. In expressing appreciation for the royal presence, prayers were extended for the Raja Muda’s continued good health and success in carrying out his responsibilities in safeguarding the interests of the people and the state.

PUTRAJAYA — The Raja Muda of Perak, Raja Jaafar Ibni Almarhum Raja Muda Musa, graced Putrajaya with a royal visit today, underscoring the continued role of the monarchy in supporting national and state development. During the visit, discussions were held on a range of key issues concerning development and the well-being of the people, particularly […]