Alpen Zenith Series fiberglass windows framing system offer high performance advantages including:

• Superior strength-to-weight ratios makes Alpen Zenith Series fiberglass windows ideal for large window openings
• Low coefficient of thermal expansion and contraction; stresses on seals, caulks and joints are minimized, contributing to greater resistance to air leakage and water penetration
• High condensation resistance prevents risk of mold
• High glass-to-frame ratio offers more viewing area compared to wood windows
• Offers the aesthetic appeal of classic wood clad windows but with 2x better insulation
• Takes paint easily compared to vinyl or aluminum for color and design flexibility over the life of the windows