Heat and glare reduction with LLumar solar control window film

The headquarters of Siemens Ltd., China, the Siemens Center is a 30-story modern high-rise. It was constructed with high-performance “low-E” insulating glass windows.

Designed as a “green” building, low energy costs were a primary design concern. The building was intended to provide a high-quality office environment for employees.

The building’s low-E windows, while providing good insulation against heat loss during the heating season, permit excessive solar heat gain during the cooling months, creating an uncomfortable interior environment that led to numerous tenant complaints.

Solution

After reviewing possible options, the building owner selected LLumar solar control window film N-1040 SR CDF as the solution.

The film’s advanced sputter-coated technology enables it to reject 50% of the sun’s energy and blocks more than 99% of harmful ultraviolet rays while helping to reduce unwanted glare.

LLumar solar control window film provides these benefits without a highly reflective appearance and it did not alter the look of the building’s facade.

Result

LLumar solar control window film completely resolved the excessive solar heat gain and glare issues of the existing windows, effectively improving the overall comfort level of the building’s interior.

Additionally, LLumar window film helped further reduce energy costs by decreasing the building’s need to use air-conditioning and helping to further improve the building's green design.