Modular buildings can be equipped with overpressure setting in the event that the technical equipment could create sparks or develop dangerously high temperatures. Overpressure with outdoor air that is taken from a safe area means that modular buildings can be placed in an explosive area. The equipment inside them, e.g. switchgear, control cabinets, control panels and motors do not need to be explosion-proof, but a cost-effective standard design can be employed.

Overpressure of electrical rooms is carried out in accordance with IEC, NFPA or ATEX directives.