PROTECTION OF THE BUILDINGS’ STRUCTURES

The objective of these systems is to keep the temperature of protected parts below ~140 °C (in case of walls, floors and electrical installations) or ~500 °C, which is the temperature considered as critical for structural steel. Above this temperature the steel is at risk of losing strength, which may lead to collapse. Steel is a non-flammable inorganic material used for its physical and mechanical properties in building industry and other industrial spheres. The negative and also dangerous aspect is its high thermal conductivity. High thermal conductivity leads to fast heat absorption and faster temperature rise compared to other materials.

 

Passive fire protection is generally applied to:

  • structural steel
  • suspended ceilings, ceilings
  • perimeter walls, building enclosures, etc.


Passive fire protection predominantly uses especially the following means:

  • lime-cement or gypsum sprayed mortars
  • expandable (intumescent) paint materials
  • board linings

SPRAYED FIRE PROTECTION MORTAR - PERLIFOC

SPRAYED FIRE PROTECTION MORTAR - PERLIFOC

PERLIFOC® is a fine-grain mortar designed to increase the fire resistance of interior steel, concrete and wooden structures and HVAC ducts. Its purpose is to maintain stability and bearing strength of structural building elements until the fire is extinguished or the object is evacuated. The mortar PERLIFOC® is intended for interior application. The surface of PERLIFOC® is rough but it can be smoothened if necessary and then painted in any colour or lined with interior elements.

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Fire protection linings of structures

Fire protection linings of structures

Compared to paints and sprayed mortar, if you choose board linings for fire protection, it will bring you clean and dry installation and aesthetical design with required fire resistance properties. Main parameters sought after in this type of passive protection include especially thermally insulating properties, flammability degree and the board integrity at higher temperatures. The boards are made of inorganic or organic materials or their combinations. Most commonly, the boards are made of lime-cement, gypsum plasterboard, vermiculite and on the mineral fibers basis.

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Fire protection paints of structures

Fire protection paints of structures

Expandable (intumescent) represent one of the options how to ensure protection for given base material. Paints contain flame spreading retardants and when exposed to heat they create an expanding layer due to the intumescing effect, which forms a barrier for heat.

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PASSIVE FIRE PROTECTION SYSTEMS 

Passive fire protection is a term used for separate parts of a building that ensure adequate fire fighting protection. Passive fire protection consists in increasing the fire resistance of supporting steel, concrete and wooden structures and HVAC ducts and in installation of fire resistant sealing of technological entries. It involves a surface protection in form of fire resistant paints, linings and sprayed layers and also the fire resistant sealing of technological entries of individual fire compartments in the building. We provide project designs, deliveries, installations and revisions of fire protection of steel, concrete and wooden structures by systems Perlifoc, Promat, Grena, Rigips and Knauf, and fire sealings made by HILTI, INTUMEX, DUNAMENTI and PROMAT.