The present invention relates to a heat welding system comprising a dispenser for dispensing coverings, at least one structure (1) with coupling means (4) for coupling to a traction vehicle, where said structure (1) comprises a heat welding device (3) for adhering the overlapped longitudinal edges of adjacent coverings to one another, and having coupling means (4) for coupling said heat welding device (3) to the structure (1). The present invention also relates to the use of said heat welding system which comprises the steps of:
