Knauf system K25
Fire protection of metal constructions

Fire protection of metal constructions

Knauf system K25

Knauf system K25
Fire resistance depending on the profile mass factor  and the thickness of the cladding. For more information, please check technical datasheet К25

Metal constructions quickly lose load-bearing capacity in case of fire. Therefore, they must be securely protected.

Vidifire A1 boards have been tested and certified as a fire-resistant cladding for metallic construction profiles, the thickness of the cladding being dependent on the profile massivity factor and the required resistance time.
 
Fire
resistance
class
Profile mass factor [m -1]
for board thickness [mm] at 500oC
15 30 45 60
R15 ≤ 336      
R30 ≤ 336      
R45 ≤ 310 >310 and ≤ 333    
R60 ≤ 140 >140 and ≤ 333    
R90 ≤ 60 >60 and ≤ 333    
R120   ≤ 110 >110 and ≤ 333  
R150   ≤ 60 >60 and ≤ 333  
R180     ≤ 110 >110 and ≤ 333
R210     ≤ 54 >54 and ≤ 333


Products with Knauf system K25