Application
Aircraft Hangar Compartmentation
Fire Rating
4 Hours
Height
10m
Length
60m
The insurance company of a newly built aircraft hangar housing 24 £49m aircraft identified the potential high risk of the hangar catching fire and its entire contents being destroyed. In order to insure the hangar, the insurance company stipulated that it be divided up into two sections in order to halve the loss risk.
At a total length of 60m and a height of 10m, Invicta designed and installed a fire wall spanning the entire width and height of the hangar, dividing it into two independent, fire protected compartments.
In order to allow aircraft to move through the hangar and between the two compartments, the 600m² fire wall was designed with a 25m x 5m opening in the middle and an automatic fire curtain fitted. Connected to the hangar’s fire alarm system, the fire curtain deploys and descends automatically upon sensing a fire in the hangar.
The wall was designed and constructed with a bespoke deflection head detail in order for the wall to cater for snow loadings on the hangar roof and wind loadings when the main doors at either end of the hangar are open.
The various penetrations through the wall, including gas pipes, data cable trays and sprinkler system pipes, were sealed using 4 hour fire mortar in order to ensure the integrity of the wall. Installation was completed in 8 weeks and the fire wall is now one of the largest in the UK.
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