Partition consisting of a frame made from 90-mm wide, 0.7-mm thick galvanised steel plate profiles, with Pladur® CH-90 studs and Pladur® E-90 studs (vertical elements), spaced 600 mm on centre, and Pladur® J-92 channels (horizontal elements). On the inaccessible (hollow area) a partition side is created by fitting a 25-mm thick Pladur® CH board with E-90 first and last studs and CH-90 studs in between, having a continuous band of Pladur® intumescent acoustic sealant between both materials. Three 15-mm thick Pladur® F boards, including joint treatment, are screwed to the accessible side of the partition. Next, on the accessible side, an independent wall lining is installed, consisting of a structure of profiles of galvanized steel sheet metal on Pladur® studs and channels (horizontal elements), on whose interior side, depending on the height to be covered, the studs must be braced with angular pieces that are attached to the core of the studs and the Pladur® CH partition, leaving a minimum space of 10 mm between the frame and the partition. On the exterior side of this structure one or more Pladur® (N, I or H1) plasterboards are screwed on. Commensurate amounts of Pladur® materials: screws, compounds, joint tape, resilient/acoustic perimeter joints, etc., as well as anchors for channels on the floor and ceiling, etc. Completely finished with Quality Level 1 (Q1) for tile finishes, laminates, furring, etc., with Level 2 (Q2), Level 3 (Q3), Level 4 (Q4), except on the inaccessible side of the system. Core of each Pladur® structure filled completely with mineral wool. Installed according to Pladur® recommendations, UNE 102043 Standard and CTE requirements.