In your new build or remodel bathrooms, care should be taken regarding window selection. Even if there is no direct water on the window and its trim, the humidity can take its toll. In this video, Matt Risinger, master builder, points out that the Azek trim used is not wood, but actually PVC. Since it is PVC, there is no swelling or puffing or damage from the humidity. The same is true of the window itself. Using a Marvin Integrity window, made of fiberglass, so there is no wood to take a beating from moisture.