Building Envelope & Thermal Bridging7 / 14
Windows & Glazing
Double/triple glazing, low-E coatings, frame U-values, solar heat gain (g-value).
10 min read · Jacob Willis, Net Zero Lead
Within an insulation strategy, windows are the element where the least resistance is achievable and the trade-offs are sharpest. They must balance heat loss, solar gain, daylight, and ventilation.