Roof Window Top-Hinged Replacement (VELUX GPU)
White Polyurethane Interior — Bright Daylight, Easy Roof Access
The VELUX GPU top-hinged roof window opens outward from the top, giving full headroom, panoramic views, and convenient roof access. Its maintenance-free white polyurethane interior is perfect for humid rooms and modern interiors, delivering clean aesthetics with zero repainting.
What is a Top-Hinged Roof Window (GPU)? Unlike center-pivot designs, the GPU sash lifts from the top, allowing you to stand comfortably beneath the window and enjoy a wide, unobstructed view. Built on a wooden core and encased in seamless white polyurethane, the interior is moisture-resistant, easy to clean, and ideal for bathrooms, kitchens, and attic conversions. Laminated Low-E glass and durable exterior cladding ensure year-round comfort and weather protection.
Where It Works Best
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Attic conversions, loft spaces, upper-floor rooms with sloped ceilings
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Homes needing easy roof access for maintenance or ventilation
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Humid areas (bathrooms, kitchens, laundry) — thanks to the polyurethane finish
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Roof pitches typically within VELUX requirements (common residential slopes)
Features & Benefits
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Top-Hinged Opening — sash opens outward for full headroom and a panoramic view
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White Polyurethane Interior (GPU) — moisture-resistant, modern white look, no repainting
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Built-in Ventilation Flap — background airflow even when the window is closed
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Energy-Efficient Glass — laminated, Low-E coated for insulation and UV protection
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Durable Exterior — weather-resistant cladding for long service life
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VELUX Warranty — 10-year product & installation coverage when installed by a Certified Installer
