A façade cladding system, comprising: - support profiles which are fixed to a façade structure , arranged in a horizontal position, said support profiles having a base portion which is applied against said façade structure and a cantilevered portion forming at its end a cradle ; - panels which are supported by said support profiles , such that they are arranged parallel to said façade structure and spaced from same; said panels being prefabricated flat cement mortar panels provided with sleeves embedded in the cement mortar mass of the panel , each of said sleeves forming a hole visible on face of said panel facing said façade structure ; - resting arrangements through which said panels rest on said support profiles , each of said resting arrangements comprising a rod which is inserted into one of said holes formed by a sleeve in a panel , and a resting part which is fixed to said rod and rests on a bottom of said cradle of the support profile ; said resting part comprising a through hole snugly receiving said rod ; - first fixing means for fixing to said sleeve said rod inserted into said hole of the sleeve ; - second fixing means for fixing said resting part to said rod ; - said first fixing means and said second fixing means being configured such that they allow regulating a gap between said resting part and the panel to which it is fixed through said rod ; wherein said resting part comprises at least two resting sides , suitable to allow said resting part to rest on the bottom of said cradle alternatively through each of said resting sides , and said through hole snugly receiving said rod is at a different distance from at least two of said resting sides ; characterized in that an identifying mark is made in said resting part next to at least some of said resting sides , the identifying mark next to a resting side being different from the identifying mark next to another resting side which is at a different distance from said through hole . - support profiles which are fixed to a façade structure , arranged in a horizontal position, said support profiles having a base portion which is applied against said façade structure and a cantilevered portion forming at its end a cradle ; - panels which are supported by said support profiles , such that they are arranged parallel to said façade structure and spaced from same; said panels being prefabricated flat cement mortar panels provided with sleeves embedded in the cement mortar mass of the panel , each of said sleeves forming a hole visible on face of said panel facing said façade structure ; - resting arrangements through which said panels rest on said support profiles , each of said resting arrangements comprising a rod which is inserted into one of said holes formed by a sleeve in a panel , and a resting part which is fixed to said rod and rests on a bottom of said cradle of the support profile ; said resting part comprising a through hole snugly receiving said rod ; - first fixing means for fixing to said sleeve said rod inserted into said hole of the sleeve ; - second fixing means for fixing said resting part to said rod ; - said first fixing means and said second fixing means being configured such that they allow regulating a gap between said resting part and the panel to which it is fixed through said rod ; <EOS>