Energy Savings Without Affecting Building Aesthetics

Energy Savings Without Affecting The Aesthetics Of The Building

ProjectDepartment of Energy and Climate Change (DECC)
Building8-storey office building (8768m2)
LocationLondon, United Kingdom
GlazingSingle primary & secondary (311m2)
FilmLLumar VS 60 SR CDF
Key RequirementEnergy Savings, Thermal Comfort


Whitehall Place is an 8-storey office building in London. The building’s glazing needed upgrading in order to reduce heat gain and energy consumption, and to meet with Carbon Reduction Plan targets. As a listed building, it needed a solution to upgrade the glazing without impacting the aesthetics of the building.


LLumar VS 60 SR CDF was specified to upgrade the glazing, to reduce heat gain without changing the appearance of the building. The film was chosen for its spectrally selective technology allowing good visible light transmission with high solar energy rejection.

The window film is expected to reject up to 54% of solar energy, helping reduce heat build-up and reduce energy consumption, and improve occupant comfort.


  • Attractive energy savings & ROI
  • Application of VS60 approved by Westminster City planning authority
Energy Analysis

Calculated using building energy simulation software before film installation.

Payback4.7 years
Cost Savings pa£ 4,274
Carbon Savings (t CO2e) p.a.9.8
Savings (Electricity/Gas)3%
Glazing Analysis

Calculated using glazing analysis software results before and after application of film

Solar gain reduction53%