ADDN AND ALTN TO AWATI HALL AT HQ NAVC UNDER AGE B/R-II OF GE HADDO, SRI VIJAYA PURAM

Providing and fixing acoustic suspended false ceiling of size (600x600)mm in true horizontal level and in required line and level suspended on inter locking Gyproc Matrix metal grid of hot dipped galvanized steel sections. It consists of main "T" runner of size 24x38x0.3x3600mm, cross "T" of size 24x25x0.3x1200mm, secondary cross "T" of size 24x25x0.3x600mm and PPGI wall angle of size 24x24x0.4x3000mm. Bottom exposed capping of width 24 mm of all T-sections shall be of 0.25mm thick PPGI. PPGI wall angle 24x24x0.4x3000mm ,YS-280Mpa, is fixed along the perimeter of the ceiling to Walls, partitions or columns etc., with wooden screws at 300mm centers or Hilti HPS 6 x40mm placed at 600 mm c/c. Gyproc® soffit cleat 27x37x25x1.6mm is fixed with Gyproc® Rawl Plug- dia 8x45mm creating 1200mm x 1200mm grid. Main-T runners 24x38x0.3x3600mm are then suspended at 1200mm c/c from ceiling using 4mm zinc electroplated butterfly level clips of size 85x30x0.8mm spaced at maximum 1200mm center to center along main T and not more than 150mm from spliced joints. The last hanger at the end of each main runner should not be greater than 600mm from the adjacent wall. 24x25x0.3x1200mm cross T is interlocked between the main T at 600mm center to center to form a grid of 1200x600 mm and then secondary cross “T" 24x25x0.3x600mm is then interlocked at middle of the 1200x600mm grid to form grids of 600x600mm. Cross Tees at the ends having length more than 600mm are to be supported independently. Finally 12.5 mm thick Fultone Tile,fully Perforated Gypsum unpainted tile of size 595x595 mm, having perforation of 9.7x9.7 mm square shape at 9.7 mm c/c with center borders of 48mm and the side borders of 30mm, backed with non woven tissue, is placed in grid. The complete ceiling system shall achieve NRC 0.85–0.88 , resin bonded glass wool of 24kg/M3 and 50mm thick is placed over Fultone tile , All components shall be compatible with each other and the complete ceiling system shall be installed strictly in accordance with the manufacturer's recommendations, including all necessary suspension, fixing and perimeter accessories, complete complete all as specified and directed Acoustic ceiling tiles / complete ceiling system: Saint-Gobain Gyproc – Fultone or techno commercial equivalent approved by GE Glass wool acoustic insulation:Saint-Gobain Insulation or techno commercial equivalent approved by GE

Dismantling of ceiling boarding including grid of any description fixed in any position with nails complete all as specified and directed.

M&L for Gypserra C-stud Wall Lining with Fultone Tile includes 34x48x36x0.5mm Gypserra C-stud placed at 297.5mm c/c in 32x50x32x0.5mm Gypserra floor and ceiling channel. Floor & Ceiling channel is anchored to the floor & True ceiling using Gyproc Rawl plug Ø8x45mm /Hilti X-GN20MX anchor fasteners at 600mm c/c in center line manner. 32x50x32x0.5mm Gypserra floor channel to be cut & bend & bracing at every 1200mm c/c vertically. Floor channel is cut-bend & fixed to brick wall with Hilti HPS-1 (Ø6x40mm) Impact anchor. Floor channel to be wrapped with 70μ Self Adhesive LDPE moisture barrier film to further improve corrosion resistance performance. A Gypserra noggin channel of 48x0.5mm width has to be provided at the horizontal joints of the two boards. Then Resin bonded glass wool of 24kg/M3 and 50mm thick is placed between the studs and noggin channels, for NRC 0.85 -0.88. Saint Gobain Gyproc Single layer of 12.5mm Fultone Tile, of size 595x595mm having four squared edges, 18% perforation area of board & hole size of 9.7mm square shape with center borders of 48mm and side borders of 30mm, backed with non woven tissue, to be screw fixed with Gyproc Drywall screws of 25mm at minimum spacing of 300mm at centre and 150mm at periphery. Finally edges are to be jointed and finished so as to have a flush look which includes filling and finishing with Gyproc Pro-Fill Jointing Compound Air Dry , Gyproc Joint Paper tape. The junction of the partition with masonry & all penetration through the partition has to be treated with Hilti/Pyroplex fire and acoustic sealant. All other detailing and specifications to be followed as per approved drawing of Gyproc or equivalent all as specified ,The complete wall-lining system shall achieve NRC 0.85–0.88, based on the manufacturer's tested/approved system .

M&L for providing and fixing 12 mm thick WPC (Wood Plastic Composite) louvered panel boards for wall panelling, fixed over framework comprising 50 × 25 × 2 mm thick aluminium profile sections, with vertical members spaced at maximum 450 mm c/c and horizontal members at maximum 600 mm c/c, including cutting, drilling, alignment and fixing of aluminium framework to wall/structure with suitable approved fasteners at required spacing, and fixing of WPC louver panels to the framework with suitable screws/fasteners, including all necessary jointing, corner/edge finishing, cutting around openings, wastage, accessories and all incidental works, complete all as specified and directed by Engineer-in-Charge.

M&L for providing and fixing 12 mm thick pre-laminated HDF boards for wall panelling, fixed over framework comprising 50 × 25 × 2 mm thick aluminium profile sections, with vertical members spaced at maximum 450 mm c/c and horizontal members at maximum 600 mm c/c, securely anchored to the existing wall/structure with suitable approved screws/fasteners, including cutting, drilling, alignment, levelling and fixing of HDF boards to the aluminium framework with suitable screws/fasteners, including provision of additional framing at corners, edges, openings and board joints, cutting around openings and obstructions, making good, necessary accessories, wastage and all incidental works, complete all as specified and directed by Engineer-in-Charge.

Dismantling of Plain or corrugated steel sheeting, any gauge, thickness, including Nainital or similar pattern roof coverings complete all as specifed and directed

S&F for pre painted galvalume aluminium zinc coating GI based corrugated steel sheet 0.50mm thick of an coloure having tensile strength of 550 Mpa as in roof overing /cladding to wall, fixed with self tapping screws complete all as specified and as directed.

S&F for pre painted galvalume aluminium zinc coating GI based plain steel sheet 0.50mm thick of an coloure having tensile strength of 550 Mpa as in roof overing /cladding to wall, fixed with self tapping screws complete all as specified and as directed.

Providing and fixing soundproof sliding window of 0.85 NRC area not excedding 2 Sqm factory made uPVC of brown colour window made of extruded profiles with wall thickness of 2.3mm(+-0.2mm). Glazing bead (35mm x 20mm) will be mitered cut and fusion welded at all corners, including drilling of holes for fixing hardware and drainage of water etc. making arrangement for fixing of hardware, EPDM gasket. 1.2 +–0.2mm thick, galvanized steel Frame (28mm x 21.5mm), T profile (27mm x 17 mrn) to be inserted in required profile, frame will be fixed to the wall with 8mm x 100mm long fasteners- 5mm thick glazing with selected quality glass complete as per manufactures directions complete. Make Veka or equivalent

M&L for providing and fixing factory-made acoustic uPVC door, brown colour, for door area exceeding 1.50 sqm but not exceeding 4.00 sqm, manufactured from extruded uPVC profiles having wall thickness of 2.3 mm ± 0.2 mm, including 35 × 20 mm glazing beads, mitre-cut and fusion-welded at all corners, complete with EPDM gaskets, necessary drainage arrangements, drilling and preparation for fixing of hardware and all necessary accessories. Door to be provided with casement door handle of zinc alloy construction with brown powder-coated finish, corner striker, secondary strikers, cylinder, mild steel transmission gear with multipoint locking arrangement and matching strikes, 3D hinges of zinc alloy with brown powder-coated finish, and 5 mm thick selected-quality glazing glass, all complete as per manufacturer's recommendations and as specified and directed by Engineer-in-Charge.