A clad window is where aluminum or vinyl sheeting is fitted over the exterior wood trim of a window. This helps peeling paint become less noticeable, reduces the effects of aging and makes it harder for water to penetrate the home.
When windows have vinyl cladding, the wood frame is coated with a vinyl composite to make them weather resistant. Vinyl-clad windows can have traditional styling because their base is made of wood, and there is little maintenance work involved with them. Aluminum-clad windows provide similar benefits and weather resistance of vinyl, but they can be painted more easily for better customization. However, because aluminum is prone to scratching and denting, there is a little more maintenance work.