Steel structures are used for building purposes worldwide. One of the main advantages is that they have great resistance per weight unit, which provides them with huge versatility and the possibility of creating complex, yet light structures.

However, the thermal conductivity of steel represents a disadvantage. Therefore, in the event of a fire, the gradual increases in temperature plus steel high heat transmission result in a substantial reduction of the structure’s bearing capacity and mechanical resistance. The resistance and elastic limit are modified above 250°C, and above roughly 500°C the drop in resistance is significant enough not to support its design capacity.

Tests with Kemwell Silboard® have been performed pursuant to standard EN 13381-4 to determine the boards’ fire protection properties when applied to steel structural elements such as beams, columns or tension elements. Kemwell Silboard® has been tested to cover a great variety of steel profiles characterised by their section factors. Likewise, they have been tested for several standard specified design temperatures.

Kemwell Silboard® is a calcium silicate board with a clean white appearance and a density of approx. 550 kg/m3. It is supplied in a convenient size of 1250 x 800mm for ease of handling and is very easy to work, cut and fix. Kemwell Silboard® is suitable for internal and semi-exposed applications.

The thickness of board required to provide the desired level of fire protection is determined by reference to the steel section factor and the limiting steel temperature. 

Applications:

• Column encasement
• Beam encasement
• Self-supporting ductwork
• Semi-exposed and humid applications
• Castellated sections

Sectors:

• Commercial offices
• Warehouses
• Factories
• Multi-storey car parks
• Retail and leisure
• Petrochem and Powergen
  
  

Data Sheets

Product Brochure

The above information is based on current test data, health and safety information and application instructions supplied by our suppliers and manufacturers of the products. It is supplied for guidance and to the best of our knowledge is true and accurate. Customers should satisfy themselves to the suitability of the products in its intended use and no guarantee is given or implied as the conditions of actual use are beyond our control. If in doubt the customer should consult the designer of the project or the local building control. 

Fire Stopping Shop, disclaim any liability for loss, damage or other expense which may arise from the use of this information, data or products refereed to and reserve the right to amend or change any details without notice. This statement does not affect your statuary rights.