Data Sheets

Range of construction for main and a wide range struction for main.



Trapezoidal Closer

FIREZERO-TRAPS are manufactured from a high density Rocksilk double compressed mineral wool special slab which is then cut to shape to suit metal roofing and decking profile sheets to achieve a fire & acoustic barrier or supplied in standard 1200mm lengths. For acoustic purposes a black or white tissue can be applied, as well as FIREZEROCOAT which is a special coating where air tightness is a requirement . A composite FIREZERO-TRAP can be produced with a polymeric core for high acoustic requirements. 

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FIREZERO-TRAPS are designed to be easily fitted where fire rating, acoustic requirement or air tightness is required to comply with fire and building current regulations. FIREZERO-TRAPS will prevent the rapid spread of flames and smoke through the void as well as acting as a passive fire barrier and meet Fire Resistance BS EN 1361 -1:1999 An additional benefit is as an acoustic seal which helps to reduce the transmission of air borne sound. Also by either using pre-coated blocks or applying FIREZERO-COAT air tightness can be achieved. For high end acoustic requirements MDL can custom made blocks using polymeric cores and facing up to 120dB








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