Introducing the Manually Operated Flat Roof Window (DMF-D) - 90cm x 90cm, a premium solution for enhancing natural light and ventilation in your flat roof spaces. This window is designed with a manual opening mechanism, providing ease of use and flexibility. Featuring an energy-efficient triple glazed DU6 glazing unit, it ensures optimal thermal performance and comfort. The external glass is 6mm toughened for durability, while the internal glass is laminated and anti-burglary P2A Class, offering enhanced security. The DMF-D window boasts a remarkable heat transmittance coefficient, with a whole window U-Value of 0.88W/m2K and a glass U-Value of 0.5W/m2K, making it an excellent choice for energy conservation. Its acoustic rating of 34Db (-1.-3) ensures a quieter indoor environment. The multi-chamber UPVC upstand and internal finish are both in RAL 9010 white PVC, providing a sleek and modern look. The step and profiles are in black RAL 9005, with the glazing edge colour featuring a unique darkness effect, adding a touch of elegance to your roofline. Designed for versatility, the Manually Operated Flat Roof Window can be installed on roofs with pitches between 2 to 15 degrees. The window is constructed from high-quality UPVC and aluminum materials, ensuring longevity and resilience. With a weight of 79.02 kg and dimensions of 1.22m in length, 0.28m in height, and 1.21m in width, it is a substantial addition to any flat roof. The manual handle type allows for straightforward operation, making it a practical and stylish choice for your home or office. Key Features Energy-efficient triple glazed DU6 glazing unit 6mm toughened external glass and laminated anti-burglary P2A Class internal glass Whole window U-Value: 0.88W/m2K, Glass U-Value: 0.5W/m2K Acoustic rating: 34Db (-1.-3) Multi-chamber UPVC upstand and internal finish in RAL 9010 white PVC Black RAL 9005 step and profiles with darkness effect glazing edge Suitable for roof pitches between 2 to 15 degrees Constructed from UPVC and aluminum Manual handle operation Dimensions: 1.22m (L) x 0.28m (H) x 1.21m (W) Weight: 79.02 kg