U Value Calculator for Windows
Introduction & Importance
U-value, or thermal transmittance, is a crucial factor in determining the energy efficiency of windows. It measures the rate of heat transfer through a window due to conduction, convection, and radiation. Understanding and calculating U-values is vital for architects, builders, and homeowners to create energy-efficient buildings and reduce energy costs.
Energy Information Administration – U.S. Energy Facts
U.S. Department of Energy – Energy Efficiency & Renewable Energy Basics