Introducing the Manually Operated Flat Roof Window (DMF-D) - 90cm x 90cm, a premium solution for enhancing natural light and ventilation in your home. This window is designed with a highly energy-efficient triple glazed DU6 glazing unit, ensuring optimal thermal performance. The external glass is 6mm toughened for durability, while the internal glass is laminated and anti-burglary P2A Class, providing an added layer of security. With a heat transmittance coefficient (U-Value) of 0.88W/m²K for the entire window and 0.5W/m²K for the glass alone, this window is perfect for maintaining a comfortable indoor environment. The DMF-D window boasts a sophisticated design with a multi-chamber UPVC upstand finished in RAL 9010 white, complemented by black 9005 steps and profiles. The glazing edge features a unique darkness effect, derived from RAL 9005 black with a grey hue, adding a touch of elegance to your flat roof. This window is suitable for roofs with pitches between 2 to 15 degrees, making it versatile for various architectural styles. With an acoustic rating of 34dB (-1.-3), it effectively reduces external noise, creating a peaceful indoor atmosphere. Ease of use is a key feature of the DMF-D window, which operates manually with a robust handle. Constructed from high-quality UPVC and aluminium materials, it ensures long-lasting performance and minimal maintenance. The window measures 90cm x 90cm, with a weight of 72kg, and dimensions of 1.22m in length, 0.28m in height, and 1.21m in width. Finished in a sleek black exterior, this window not only enhances the aesthetic appeal of your home but also contributes to its energy efficiency. Key Features Manually operated flat roof window Triple glazed DU6 glazing unit 6mm toughened external glass Laminated and anti-burglary P2A Class internal glass Heat transmittance coefficient (U-Value) of 0.88W/m²K Acoustic rating of 34dB (-1.-3) Multi-chamber UPVC upstand in RAL 9010 white Black 9005 steps and profiles with a darkness effect glazing edge Suitable for roof pitches between 2 to 15 degrees Manual handle operation Constructed from UPVC and aluminium Dimensions: 90cm x 90cm, weight: 72kg Sleek black exterior finish