Which of the following is NOT a common problem with exterior cladding?

Exterior cladding plays a critical role in protecting a building from the elements, and various issues can arise related to its installation and maintenance. While problems such as improper sealing, water intrusion, and cracking due to thermal expansion are well-documented and frequently encountered, the proximity of cladding to window openings is generally a design consideration rather than a common problem that affects the performance of the cladding itself.

Inappropriate sealing can lead to gaps, allowing water and air to penetrate, which can significantly reduce the longevity of the cladding and lead to structural damage. Water intrusion is a severe issue that can cause mold, rot, and deterioration of underlying structures. Similarly, cracking due to thermal expansion can occur when materials expand and contract with temperature changes, especially if the installation does not allow for this natural movement.

In contrast, while cladding's placement in relation to windows should be carefully designed to ensure proper drainage and aesthetic appeal, being "too close to window openings" is less of a practical issue and does not typically result in failure of the cladding itself. Thus, the choice regarding closeness to window openings is less about a problem directly affecting the cladding’s function, making it the correct answer to the question about what is not a common problem with exterior