Marley Roof Defence is an intumescent roof cavity barrier against fire. It’s installed under tiles and between roofing battens to help prevent the spread of fire and smoke between adjoining properties in semi-detached and terraced houses.
It provides full fire protection from one roof to the next, achieving up to a 60 minute fire rating, and can also be used as a cavity fire barrier in large roofs, or as a fire break in buildings such as schools, care homes and hospitals.
|Roof Defence Intumescent Fire Barrier 6.3m||Roof Defence Intumescent Ridge Cap|
|Overall Nominal Thickness||10mm||12mm|
|Transportation storage temperature||0-30˚C||0-30˚C|
|Cuttability||Cut to length using scissors or knife||Do not cut|
|Compressability||Do not compress||Do not compress|
|Working Life||>60 years||>60 years|
|Substrate/Base material||Spandrel panel OR masonry||Spandrel panel OR masonry|
|Maximum Air Gap||96mm||96mm|
|Density||615 kg/m3||615 kg/m3|
|Fungal Resistance||Protected by polythene sleeve||Protected by polythene sleeve|
|Density||630 kg/m3||630 kg/m3|
|Free Expansion||30:1 ratio||30:1 ratio|
|Reaction to Fire Classification||E||E|
|Resistance to Fire||BS EN 1363-1 2012 & ASFP TGD 19||BS EN 1363-1 2012 & ASFP TGD 19|