Thor Duct ® was formerly known as Safe 4 ® Fire Duct in the UK and Ireland.
Passive ducts, specified as fire ducts, are tested to EN 1366-1. Lindab Thor Duct ® Fire Ductwork meets all of these requirements and is the most suitable choice. Lindab Thor Duct ® Fire Ductwork has been tested with insulation, and is classified to standard EN 13501-3.
Lindab Thor Duct ® Fire Ductwork is a non-coated system, suitable for installation in multi-compartment, single compartment, stud wall, solid wall, and aerated concrete floors. A comprehensive set of support bracketry is provided. Penetration seals guidance is provided with detailed drawings.