Ply Gem Industries - home remodeling, new construction exterior products Ply Gem, windows, exterior home design ideas, siding, stone, manufacturer, fence, rail, vinyl, sustainability, green, products, low maintenance, gutter protection, designed exterior, exterior design, exterior building products, exterior solution, lternative, builder, remodeler, contractor, architect, home renovation, home remodel Aluminum-framed windows will not warp, crack, or swell over time and are extremely stable in both extreme heat and cold. Maintenance Free —Reduces the overall maintenance expense because of its excellent weatherproofing and corrosion resistant properties. Also, powder-coated and anodized aluminum windows require less upkeep and do not require resealing and repainting.