Which factor is NOT an advantage of using wood frames for windows?

Using wood frames for windows offers several advantages that make them a popular choice in construction. Let's focus on the options provided and the rationale behind the correct choice.

Wood frames provide better insulation compared to metal, which helps maintain temperature control in a building, enhancing energy efficiency. This is because wood is a poor conductor of heat, so it acts as an effective insulator.

Cost is another factor where wood can be advantageous. While the initial price can vary depending on the type of wood and design, wood frames are often more affordable than metal frames, especially when considering the long-term benefits of energy savings due to insulation.

Aesthetics play a significant role in the choice of window materials. Wood frames are known for their natural beauty and can complement various architectural styles, making them a preferred choice for those who prioritize visual appeal.

However, the notion that wood frames do not have issues with expansion is misleading. Wood is susceptible to changes in moisture and temperature, which can lead to expansion and contraction. This characteristic means that, unlike metal which has its own set of expansion concerns, wood frames can warp or swell, affecting their performance over time.

Thus, the factor that is not an advantage of using wood frames is the lack of issues with expansion. In summary,