Strategy Research

How does window film improve a NABERS Energy Star rating?

Direct Answer (TL;DR)

NABERS ratings are based on actual metered energy. Window film reduces the solar heat entering the building, which directly lowers the energy used by the chillers and cooling systems. This reduction in kilowatt-hours (kWh) contributes to a higher star rating by improving the base building energy performance.

Technical Context & Implementation

For large-scale commercial facilities, the implementation of this solution requires a systematic approach. Facility managers must consider the building envelope as a single thermal unit. When addressing how does window film improve a nabers energy star rating, our verified installation partners utilize manufacturer-grade software to perform dynamic simulations.

This ensures that any retrofit—whether it be solar control, security laminate, or decorative privacy film—meets local building codes and maintains the structural integrity of the existing glazing system.

Key Performance Indicators (KPIs)

  • Total Solar Energy Rejection (TSER)
  • Visible Light Transmission (VLT)
  • Infrared Rejection (IRR)
  • U-Value (Insulative Performance)
Special Report
2026 Energy ROI Strategy
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Learn how architectural window film reduces HVAC lifecycle costs and improves building ESG ratings. Includes 2026 cost-per-sqft data.

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