What is the primary advantage of wood frames over metal frames for windows?

The primary advantage of wood frames over metal frames for windows is that metal does not provide good insulation. Wood inherently has better insulating properties than metal, which can conduct heat and cold, leading to temperature transfer and energy loss within a building. This means that wood frames can help maintain a more stable indoor temperature compared to metal frames, ultimately enhancing energy efficiency and comfort within a structure.

While other options may touch on relevant characteristics, such as cost or sealing capabilities, they do not address the fundamental effectiveness of wood in terms of insulation. In contrast, metal frames can expand and contract with temperature fluctuations, potentially leading to structural issues, whereas wood's natural properties can mitigate these concerns, making it a more reliable choice for energy efficiency in window framing.