Fire Protection
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Fire Protection
Lafarge offer a full range of passive fire protection products, from compartment walls to special systems for encasing beams and enclosing shafts. Lafarge systems have been exhaustively tested by independent test houses, tried and refined over many years to satisfy a range of regulatory standards.
Lafarge GTEC Shaftwall
Lafarge GTEC Shaftwall is a high performance fire protection system for the enclosure of shafts in multistorey buildings. These may include stairwells, lift shafts, service ducts and ventilation/air conditioning ducts. Lafarge GTEC Shaftwall can also be used as a high performance independent wall lining system providing high levels of fire protection and sound insulation. Erected from one side only fire resistance is provided to both sides of the lining. Lafarge GTEC Shaftwall can provide up to 120 minutes fire resistance in these applications.
Lafarge GTEC Shaftwall is a high performance fire protection system for the enclosure of shafts in multistorey buildings. These may include stairwells, lift shafts, service ducts and ventilation/air conditioning ducts. Lafarge GTEC Shaftwall can also be used as a high performance independent wall lining system providing high levels of fire protection and sound insulation. Erected from one side only fire resistance is provided to both sides of the lining. Lafarge GTEC Shaftwall can provide up to 120 minutes fire resistance in these applications.
Lafarge GTEC Column and Beam
In a fire, unprotected structural steel begins to lose its strength at temperatures above 550ºC. Selection of a suitable encasement system is essential. The factors which affect this selection are: • the period of fire protectionrequired • the physical properties (size and mass) of the steel section • the application – column or beam and the number of exposed faces,2, 3 or 4. The degree of fire protection required for a steel section has been shown to depend on its Hp/A factor, which is a function of the heated perimeter of the section related to its cross sectional area. A section with a high Hp/A factor will heat up more rapidly than one with a low Hp/A factor, and so may require a higher specification of encasement to achieve the same level of fire protection.
In a fire, unprotected structural steel begins to lose its strength at temperatures above 550ºC. Selection of a suitable encasement system is essential. The factors which affect this selection are: • the period of fire protectionrequired • the physical properties (size and mass) of the steel section • the application – column or beam and the number of exposed faces,2, 3 or 4. The degree of fire protection required for a steel section has been shown to depend on its Hp/A factor, which is a function of the heated perimeter of the section related to its cross sectional area. A section with a high Hp/A factor will heat up more rapidly than one with a low Hp/A factor, and so may require a higher specification of encasement to achieve the same level of fire protection.
