Face generous glazing toward the sun you can befriend, then shield the angles that misbehave. In high latitudes, south-facing windows invite low winter light, while minimized east–west glazing tames sideways glare. In tropical homes, deeper porches and vertical fins defend east and west, with north–south openings balanced and well shaded. Sketch your plan, note compass bearings, and list activities near each wall. Align breakfast tables to soft morning light and quiet bedrooms from late-day glare to encourage easier rest and happier mornings.
Glass is never neutral. Low‑emissivity coatings, laminated interlayers, tints, and selective spectrally selective panes shift heat, color, and clarity. In cold climates, prioritize low U‑values and adequate visible transmittance for crisp interiors, while balancing solar gains without overheating shoulder seasons. In tropical regions, favor lower solar heat gain coefficients, neutral color rendering, and durable coatings that resist humidity. Ask suppliers for full performance data, not just labels, and test with a small mockup to feel the difference. Your eyes and thermostat will thank you.