{"product_id":"fakro-dsf-du6-smoke-ventilation-flat-roof-window-kit","title":"Fakro DSF DU6 Smoke Ventilation Flat Roof Window Kit","description":"\u003ch3\u003eFakro DSF DU6 Smoke Ventilation Flat Roof Window Kit\u003c\/h3\u003e\n\nThe Fakro DSF DU6 Smoke Ventilation Flat Roof Window Kit is designed to provide reliable natural smoke and heat extraction while maintaining strong thermal and acoustic performance. Developed as a natural smoke and heat exhaust ventilator (NSHEV), it is suitable for applications where effective fire safety needs to be combined with good insulation and a clean, modern appearance.\n\nDesigned to meet the requirements of EN 12101-2, the system helps remove smoke and hot air from a building during an emergency. Its discreet design, insulated construction and integrated control components make it suitable for a range of commercial and residential projects where smoke ventilation is an important consideration.\n\n\u003ch3\u003eEffective Smoke and Heat Extraction\u003c\/h3\u003e\n\nThe Fakro DSF DU6 uses four actuators to lift the window sash approximately 50cm parallel to the base. This creates a large opening to assist with the rapid removal of smoke and heat in an emergency situation.\n\nThe system is designed for automatic operation while also allowing manual activation when required, providing a comprehensive approach to natural smoke ventilation.\n\n\u003ch3\u003eHigh Thermal Performance\u003c\/h3\u003e\n\nThe kit features a triple-glazed U6 unit with a whole-window U-value of 0.79 W\/m²K and a glass U-value of 0.5 W\/m²K. This level of thermal performance helps limit heat transfer through the roof window, supporting a more comfortable internal environment when the system is not being used for smoke extraction.\n\n\u003ch3\u003eImproved Acoustic Comfort\u003c\/h3\u003e\n\nWith an acoustic rating of 34dB (-1, -4), the DSF DU6 can help reduce external noise entering through the roof opening. This makes it a practical choice for buildings where both smoke ventilation and everyday indoor comfort are important.\n\n\u003ch3\u003eStrong and Well-Insulated Construction\u003c\/h3\u003e\n\nThe window features a multi-chamber PVC frame mounted on an XRD base, providing a total upstand height of 30cm. This construction offers a robust installation solution while contributing to the overall thermal performance of the system.\n\nThe roof window is suitable for roof pitches between 0° and 15°, giving it flexibility for a range of flat and low-pitched roof applications.\n\n\u003ch3\u003eDiscreet Modern Appearance\u003c\/h3\u003e\n\nThe lifting mechanism is concealed when the window is closed, helping maintain a neat appearance from inside the building. The interior features RAL9010 white PVC, while the exterior uses RAL9005 black with a dark edge glazing effect for a contemporary architectural finish.\n\n\u003ch3\u003eIntegrated Smoke Ventilation Controls\u003c\/h3\u003e\n\nThe Fakro DSF DU6 kit includes essential control and safety components to support reliable smoke and heat extraction.\n\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eRZN4408K Control Unit:\u003c\/strong\u003e Provides automatic and manual control of the four actuators.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRT45 Alarm Push Button \/ Break Glass:\u003c\/strong\u003e Allows the system to be manually activated during an emergency.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOSD 23 Smoke Sensor:\u003c\/strong\u003e Detects smoke and enables automatic operation of the smoke ventilation system.\u003c\/li\u003e \u003c\/ul\u003e\n\nOptional accessories are also available for additional functionality. These include an LP1 switch for everyday ventilation and a rain sensor that can automatically close the sash when rainfall is detected. The rain sensor is sold separately.\n\n\u003ch3\u003eAvailable Sizes\u003c\/h3\u003e\n\nThe Fakro DSF DU6 Smoke Ventilation Flat Roof Window Kit is available in the following two sizes:\n\n\u003cul\u003e \u003cli\u003e1200 x 1200mm\u003c\/li\u003e \u003cli\u003e1050 x 1050mm\u003c\/li\u003e \u003c\/ul\u003e\n\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\n\u003cul\u003e \u003cli\u003eDesigned as a natural smoke and heat exhaust ventilator (NSHEV)\u003c\/li\u003e \u003cli\u003eDesigned to meet the EN 12101-2 smoke ventilation standard\u003c\/li\u003e \u003cli\u003eFour actuators lift the sash approximately 50cm parallel to the base\u003c\/li\u003e \u003cli\u003eTriple-glazed U6 unit for strong thermal performance\u003c\/li\u003e \u003cli\u003eWhole-window U-value of 0.79 W\/m²K\u003c\/li\u003e \u003cli\u003eGlass U-value of 0.5 W\/m²K\u003c\/li\u003e \u003cli\u003eAcoustic rating of 34dB (-1, -4)\u003c\/li\u003e \u003cli\u003eMulti-chamber PVC frame with XRD base\u003c\/li\u003e \u003cli\u003e30cm total upstand height\u003c\/li\u003e \u003cli\u003eSuitable for roof pitches from 0° to 15°\u003c\/li\u003e \u003cli\u003eIncludes control unit, alarm push button\/break glass and smoke sensor\u003c\/li\u003e \u003cli\u003eAvailable in 1200 x 1200mm and 1050 x 1050mm sizes\u003c\/li\u003e \u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eWhat is the Fakro DSF DU6 Smoke Ventilation Flat Roof Window Kit used for?\u003c\/h4\u003e\n\nThe Fakro DSF DU6 is designed for natural smoke and heat extraction. During an emergency, the actuators raise the sash to create an opening through which smoke and hot air can escape from the building.\n\n\u003ch4\u003eWhat control components are included with the Fakro DSF DU6?\u003c\/h4\u003e\n\nThe kit includes an RZN4408K control unit, an RT45 alarm push button\/break glass and an OSD 23 smoke sensor. These components provide automatic and manual control of the smoke ventilation system.\n\n\u003ch4\u003eWhat sizes is the Fakro DSF DU6 available in?\u003c\/h4\u003e\n\nThe Fakro DSF DU6 Smoke Ventilation Flat Roof Window Kit is available in two sizes: 1200 x 1200mm and 1050 x 1050mm.","brand":"Fakro","offers":[{"title":"1200x1200mm","offer_id":55491148317014,"sku":"117191","price":7790.0,"currency_code":"GBP","in_stock":true},{"title":"1050x1050mm","offer_id":55491148349782,"sku":"117192","price":7497.0,"currency_code":"GBP","in_stock":true}],"url":"https:\/\/jjbuildingmaterials.co.uk\/products\/fakro-dsf-du6-smoke-ventilation-flat-roof-window-kit","provider":"JJ Building Materials","version":"1.0","type":"link"}