Energy Ratings

Energy-efficient windows and doors are evaluated using key performance parameters such as U-Value, Solar Heat Gain Coefficient (SHGC), Visible Light Transmission (VLT), and Air Leakage. A lower U-value indicates better thermal insulation, while a lower SHGC reduces unwanted heat from sunlight. Higher VLT allows more natural daylight without excessive heat gain, contributing to energy savings and occupant comfort.

High-performance window and door systems with advanced glazing, low-E coatings, insulated frames, and airtight sealing significantly reduce heating and cooling loads. As a result, they support sustainable building design, lower electricity costs, and improve environmental performance. Energy-rated windows and doors are widely used in residential, commercial, and architectural projects to meet modern energy efficiency standards and green building requirements.