Annual Plan-Chenkal Govt. LPGS Roof maintanance-123/2026-General Civil Work

15.31:Dismantling tiled roofing with battens, boarding etc. complete including stacking of serviceable material and disposal of unserviceable material within 50 metres lead.

OD16348/2026-2027:Providing & fixing departmental tile on roof pressed clay tile (Mangalore tile) of 20 mm nominal thickness

12.48:Providing & fixing on roof pressed clay tile (Mangalore tile) of 20 mm nominal thickness and of approved size and as per approved pattern on steel frame work complete (steel frame work to be paid separately)

14.15.1:Renewing wooden battens in roofs, including making good the holes in wall and painting with oil type wood preservative of approved brand and manufacture complete, including removal of rubbish to the dumping ground, all complete asper direction of Engineer-in-Charge.Sal wood battens

14.16.1.2:Renewing wooden beams in roofs including making good the holes in walls Not exceeding 4.00 metres in length.Hollock wood beams

12.52.4:Providing and fixing tiled false ceiling of approved materials of size 595 x 595 mm in true horizontal level, suspended on inter locking metal grid of hot dipped galvanized steel sections (galvanized @ 120 grams per sqm, both side inclusive) consisting of main "T" runner with suitably spaced joints to get required length and of size 24x38 mm made from 0.30 mm thick (minimum) sheet, spaced at 1200mm center to center and cross "T" of size 24x25 mm made of 0.30 mm thick (minimum) sheet, 1200 mm long spaced between main "T" at 600 mm center to center to form a grid of 1200x600 mm and secondary cross "T" of length 600 mm and size 24x25 mm made of 0.30 mm thick (minimum) sheet to be interlocked at middle of the 1200x600 mm panel to form grids of 600x600 mm and wall angle of size 24x24x0.3 mm and laying false ceiling tiles of approved texture in the grid including, required cutting/making, opening for services like diffusers, grills, light fittings, fixtures, smoke detectors etc. Main "T" runners to be suspended from ceiling using GI slotted cleats of size 27 x 37 x 25 x 1.6 mm fixed to ceiling with 12.5mm dia and 50 mm long dash fasteners, 4 mm GI adjustable rods with galvanised butterfly level clips of size 85x 30x 0.8 mm spaced at 1200 mm center to center along main T, bottom exposed width of 24 mm of all T-sections shall be pre-painted with polyester paint, all complete for all heights as per specifications, drawings and as directed by Engineer -in-charge.12.5 mm thick fully Perforated Gypsum Board tile made from plaster board having glass fibre conforming to IS: 2095 Part I, of size 595x595 mm, having perforation of 9.7x9.7 mm at 19.4 mm c/c with centre borders of 48 mm and the side borders of 30 mm, backed with non woven tissue on the back side , having as NRC ( Noise Reduction Co efficient) of 0.79, with 50 mm resin bonded glass wool backing.