Arrangement in building structures incorporating a foundation mat, for creating a volume of air beneath the mat

摘要

An arrangement in building structures (1) having a support mat (2) for creating beneath the support mat (2) an air mass or volume (3'). A fan or like device is provided for supplying air under overpressure to a bed located beneath the support mat. Arranged in the bed (3) beneath the mat (2) are hoses (9) and/or pipes, which are connected to the fan (7).