The anti-bandit security screen and counter provide the main public facing protection from attack, but there’s much more to a post office security counter to ensure entry cannot be gained.
Closing the Gap
To prevent anyone from climbing over the security screen in a robbery situation the gap between the screen and ceiling must be closed.
Our designs use mesh to extend and fix to the true ceiling (i.e. not a false or suspended ceiling), or to a height of 3 metres, whichever is the lower. This not only provides protection but also ventilation to the enclosed fortress.
A determined intruder may attempt to access a fortress area through the ceiling. If your ceiling is beneath a flat or exposed roof or a vulnerable space then, in accordance with the Post Office Ltd. specification, it must be upgraded. Concrete ceilings aren’t normally required to be upgraded.
Our ceiling upgrades strengthen the existing structure using layers of plywood sheets and panels of shaped or flattened steel mesh which can be plaster finished or lined with boards and skimmed for decoration.
Attack is possible from any direction, even through your floor. Similar to the ceiling upgrade, panels of shaped or flattened steel mesh – which is resistant to criminal attack – is overlaid with plywood sheets and secured to the existing floor joists. Concretes floors aren’t normally required to be upgraded.
Brick Work & Block Work Construction
While KS Security doesn’t perform masonry work we can offer advice on the required standards for brick work and block work construction for post office fortresses.
To meet the Post Office Ltd standards the walls should be constructed in a minimum of 115mm brickwork (or block work the equivalent density), that should be faced with a high gauge expanded metal on both the attack side and opposite face.
Where brick construction isn’t possible then studwork walling is acceptable so long as it is built to the correct standards using: 12mm water and boil proof plywood, 50mm x 100mm studding, shaped/flattened steel mesh, 12mm plasterboard or gardenia laminated boarding.
External Wall Upgrades
In new build properties where exterior walls are constructed with thermal efficiency and not security in mind the inner skin may need to be upgraded. Layers of plywood sheets, panels of shaped or flattened steel mesh accompany studding that’s suitably secured to the adjacent walls, floor and ceiling and finished.
Secure Partition Panels
Secure Partition Panels can be used when secure infilling is required but construction of a secure wall is inappropriate. Constructed of a hollow steel sectional frame with a welded steel plate fixed to the attack face they meet the Post Office Ltd.’s physical attack resistant specifications.