A process for assembling a fireproof system within a stick build exterior dynamic curtain wall facade, comprises the following steps: - assembling a framing structure by attaching anchoring brackets to horizontal and vertical framing members and to the concrete and steel members of the facade to the building structure; - installing the appropriate water gasket seals to the framing members (2, 3) to seal the framing structure and building structure from water intrusion; - installing a first L-shaped member of a non-combustible material having a first leg and a second leg perpendicular to each other, and a second L-shaped member of a non-combustible material having a first leg and a second leg perpendicular to each other, such that the first leg of the first L-shaped member is fastened to an upper horizontal framing member and upper locations of the vertical framing members and the first leg of the second L-shaped member is connected to the second leg of the first L-shaped member, thereby forming a substantially U-shaped cavity; - installing supporting and attachment elements to fasten the substantially U-shaped cavity to an inner facing side of the vertical framing member, thereby forming a 5-sided box pan; - installing additional gaskets, hardware, and components necessary to prepare the framing structure for glass installation; - completion of the curtain wall facade by installing glass and appropriate sealing layers to the structure; - installing a thermally resistant material (9, 10) into the substantially U-shaped cavity and the safing slot; and - optionally applying an outer fire retardant coating positioned across the thermally resistant material installed in the safing slot and the adjacent portions of the vertical and horizontal framing members and the floor located thereadjacent. - assembling a framing structure by attaching anchoring brackets to horizontal and vertical framing members and to the concrete and steel members of the facade to the building structure; - installing the appropriate water gasket seals to the framing members (2, 3) to seal the framing structure and building structure from water intrusion; - installing a first L-shaped member of a non-combustible material having a first leg and a second leg perpendicular to each other, and a second L-shaped member of a non-combustible material having a first leg and a second leg perpendicular to each other, such that the first leg of the first L-shaped member is fastened to an upper horizontal framing member and upper locations of the vertical framing members and the first leg of the second L-shaped member is connected to the second leg of the first L-shaped member, thereby forming a substantially U-shaped cavity; - installing supporting and attachment elements to fasten the substantially U-shaped cavity to an inner facing side of the vertical framing member, thereby forming a 5-sided box pan; - installing additional gaskets, hardware, and components necessary to prepare the framing structure for glass installation; - completion of the curtain wall facade by installing glass and appropriate sealing layers to the structure; - installing a thermally resistant material (9, 10) into the substantially U-shaped cavity and the safing slot; and - optionally applying an outer fire retardant coating positioned across the thermally resistant material installed in the safing slot and the adjacent portions of the vertical and horizontal framing members and the floor located thereadjacent.