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with precision-cut straight edges to ensure gaps between boards are kept to a minimum
When used with Stronghold resins and glass reinforcing achieves FAA fire rating
Can be used as a water barrier in (cavity) walls and under casings
you use the included rubber gasket system
VELUX GGU MK04 S40L02 White Polyurethane Smoke Ventilation System for Slate (78 x 98 cm) roof windows with precision-cut straight edges toThe VELUX Smoke Vent Window Package Includes: 1 x GGU MK04 007040D (78 x 98cm) Electrically Operated White Polyurethane Smoke Vent window 1 x EDL MK04 2000 Flashing for Slate up to 8mm thick (including Insulation & Underfelt collars) 1 x KFC 305 EU Control System 1 x KFA 100 WW Smoke Detector 2 x KFK 300 WW Break glass points Description: Natural smoke and heat exhaust ventilators are typically used in common access areas such as stairwells and annex
