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Blast Mitigation and Resistance

The primary cause of glazing damage is the shock wave from the bomb blast that expands in all directions from the explosive charge. A secondary cause of damage is debris from the bomb blast. The two main sources of debris are the intentional missiles in the composition of the weapon and fragments from the surrounding environment. For effective blast mitigation, the window system must be able to withstand two specific pressure wave assaults, Peak Pressure and Impulse (positive duration phase).

It should also be noted that peak and impulse values are not only affected by the size and type of charge, but also the distance from the blast.

McMullen Inc was only one of four companies worldwide who were able to pass the testing regimes as set out by the USACE to supply to Military Barracks overseas, for the US Military, following testing at the Energetic Materials Research Centre in New Mexico.

The windows and Curtain wall have been used extensively throughout Northern Ireland in the Nineties, including numerous significant buildings in Belfast City Centre. The Company has also supplied blast mitigation windows and curtain wall to numerous Embassies and other security sensitive projects around the world, including Kabul, Baghdad and Beirut.