Apparatus for testing of water permeability of samples of building facades

Apparatus for testing mokeup of facades of buildings consisting of a frame on one side of which is fixed a mokeup of the facade to be tested, and by a grid on which are arranged the nozzles that spray water on the sample of the facade to be tested, characterized in that that said apparatus is equipped with a handling system of the grid from a working position located in front of the mokeup to be tested to a rest position behind the frame on the opposite side to that on which is located the mokeup and that the grid on which are arranged nozzles flows over the frame elements placed at a predetermined distance from mokeup test