Weathershield. Premium fiberglass-clad wood windows combine good looks with energy efficiency and durability. The exterior fiberglass cladding is available in seven colors, and will resist scratches, dents, pests, rot and corrosion, and won’t warp or become brittle in extreme climates, the maker says. Three Zo-e-Shield glazing options are available. Choose from natural pine or character alder for the windows’ solid wood interiors. The collection includes casement, awning, and direct-set units in rectangle, radius, and specialty configurations; double-hung tilts; bows and bays; and sliders and triple sliders. 800.477.6808.